ROHM Develops the Industry's Smallest* CMOS Op Amp Optimized
Trade news

ROHM Develops the Industry's Smallest* CMOS Op Amp Optimized

　　ROHM has developed an ultra-compact 1.8V - 5V, rail-to-rail CMOS operational amplifier (op amp) - the TLR377GYZ. It is optimized for amplifying signals from sensors such as temperature, pressure, flow rate, used in smartphones, small IoT devices, and similar applications.　　The size of smartphones and IoT devices continues to decrease - requiring smaller components. To accurately amplify small signals as needed in high precision sensing, op amps must improve low input offset voltage and noise performance while continuing to shrink the form factor.　　The TLR377GYZ succeeds in balancing miniaturization with high accuracy (which has been difficult to achieve with conventional op amps) by further evolving proprietary circuit design, process, and packaging technologies cultivated over many years.　　Op amps’ input offset voltage and noise generation degrade amplification accuracy and can be suppressed by increasing the size of the built-in transistors - but at the expense of miniaturization. In response, ROHM developed proprietary circuits which achieve a maximum offset voltage as low as 1mV without increasing the size of the transistors. In addition, proprietary process technology greatly reduce flicker noise, while ultra-low noise is achieved with an input equivalent noise voltage density of 12nV/√Hz by optimizing the resistive components at the element level. Furthermore, the new product adopts a WLCSP (Wafer Level Chip Scale Package) with a ball pitch of just 0.3mm utilizing original packaging technology. This reduces size by approximately 69% compared to conventional products and 46% over existing compact products.　　The IC-mounted conversion board that can replace SSOP6 packages is also offered to support replacement considerations and initial evaluation. Both the new product and conversion board are available for purchase through online distributors. In addition, the high accuracy SPICE model - called ROHM Real Model - is available on ROHM’s website for verification simulations.　　Going forward, in addition to greater miniaturization and accuracy, ROHM will continue to improve op amp performance by reducing power consumption further utilizing proprietary ultra-low current consumption technology.　　Key Product FeatureA shut down function required by mobile devices is built in, reducing power consumption during standby mode.　　Application Examples• Smartphones, compact IoT devices equipped with measurement sensor amps, etc.　　High Accuracy Simulation Models: ROHM Real ModelsROHM Real Models are new high accuracy SPICE models that utilizes original model-based technology to faithfully reproduce the electrical and temperature characteristics of the actual IC, resulting in a perfect match between the IC and simulation values. This ensures reliable verification, contributing to more efficient application development - for example by preventing rework after prototyping. ROHM Real Models are now available on ROHM’s website.　　TerminologyInput Offset Voltage　　The error voltage that occurs between the input terminals of an op amp.　　Flicker Noise　　Noise inherent to electronic components such as semiconductors. Power is inversely proportional to frequency, so the lower the frequency the greater the power. Also called 1/f noise or pink noise. Other types of noise include thermal (i.e. Johnson-Nyquist, white) noise.　　Equivalent Input Noise Voltage Density　　The value obtained by short-circuiting the input terminals and referring the noise voltage density appearing at the output to the input terminals, i.e., since amplifiers have gain (amplification factor), dividing the output noise voltage density by the gain allows for a fair evaluation of the amplifier’s intrinsic noise characteristics.　　ROHM Real Model　　A high-accuracy simulation model that succeeds in achieving a perfect match between the actual IC and simulation values utilizing ROHM’s proprietary model-based technology.
Key word：
Release time：2024-08-13 14:03 reading：613 Continue reading>>
ROHM Develops a New Op Amp that Minimizes Current Consumption
Trade news

ROHM Develops a New Op Amp that Minimizes Current Consumption

　　ROHM has developed a linear operational amplifier (op amp) - LMR1901YG-M - featuring the lowest* current consumption in the industry. This makes it ideal for amplifying sensor signals used to detect and measure temperature, flow rate, gas concentration, and other parameters in applications powered by internal sources (i.e. batteries).　　In recent years, advanced control has been in increasing demand for various applications in consumer and industrial electronics. Therefore, there is an increasing need for accurate sensing of parameters relevant to the application - such as, temperature, humidity, vibration, pressure, and flow rate. Op amps whose main function is to amplify sensor signals for subsequent detection and/or analog-to-digital conversion, is a crucial component in the signal chain - greatly affecting both accuracy and power consumption. ROHM is developing op amps that satisfy the dual need for high accuracy and low current consumption. By further refining the circuit design based on original Nano Energy™ technology, ROHM is now able to offer an op amp that delivers the lowest current consumption on the market.　　The LMR1901YG-M leverages original ultra-low power technology that thoroughly suppresses current increase caused by temperature and voltage changes to reduce current consumption to just 160nA (Typ.) - approximately 38% lower than that of general low power op amps. This not only extends the life of applications powered by internal batteries like electronic shelf labels, but also contributes to longer operating times for smartphones and other devices equipped with rechargeable batteries. At the same time, this low current consumption does not change over the temperature range of -40°C to +105°C - allowing stable low-power operation, even in environments where external temperatures fluctuate, including fire alarms and environmental sensors.　　Other performance enhancements include 45% reduction of input offset voltage to just 0.55mV (Max. Ta=25°C) over general low-current op amps while a maximum input offset voltage temperature drift of 7V/°C is guaranteed. This enabling high accuracy amplification of sensor signals. Capable of operating from 1.7V to 5.5V supply voltage and offering rail-to-rail input/output, LMR1901YG-M is suitable for a wide variety of applications in the industrial equipment and consumer markets. ROHM’s new op amp also complies with the automotive reliability standard AEC-Q100 - ensuring stable operation even under harsh conditions such as vehicle cabins without compromising functionality.　　In addition to various technical documents necessary for circuit design and SPICE models for simulation (available free of charge on ROHM’s website), the LMR1901YG-M can be used with ROHM Solution Simulator to speed up time to market.　　Going forward, ROHM will continue to pursue further power savings in op amps using proprietary ultra-low power technology. On top, ROHM aims to improve the performance of op amp lineups by reducing noise and offset - increasing power savings and expanding the power supply voltage range while contributing to solving social issues through higher accuracy application control.　　Application Examples• Consumer applications: smartphones, smartwatches, wearables, fire alarms, motion sensors, etc.　　• Industrial equipment: electronic shelf labels (ESL), handheld measurement instruments, data loggers, environmental sensors for IoT, etc.　　• Automotive systems: anti-theft sensors, drive recorders, etc.　　Online Sales InformationSales Launch Date: November 2023　　Pricing: $4.0/unit (samples, excluding tax)　　Online Distributors: DigiKey, Mouser and Farnell　　The products will be offered at other online distributors as they become available.。　　Product Information　　Applicable Part No: LMR1901YG-M　　Online Distributors　　What is Nano Energy™ Technology?Nano Energy™ refers to proprietary ultra-low current consumption technology that achieves a current consumption on the order of nano ampere (nA) by combining advanced analog technologies covering circuit design, layout, and processes utilizing ROHM’s vertically integrated production system.　　This contributes to not only extending the operating time of battery operated IoT and mobile devices, but also improved efficiency in industrial and automotive equipment where increased power consumption is problematic.　　*Nano Energy™ is a trademark or registered trademark of ROHM Co., Ltd.　　TerminologyInput Offset Voltage　　Refers to the error voltage that occurs between the input terminals of an op amp.　　Input Offset Voltage Temperature Drift　　The fluctuation in input offset voltage caused by a rise/fall in temperature. The smaller this value is the higher the op amp accuracy. Zero-drift op amps automatically compensate for input offset temperature drift.　　Rail to Rail Input/Output　　A circuit format that allows the input and output voltages of an op amp to accommodate the entire supply voltage range. The supply voltage in this case is called a Rail.　　ROHM Solution Simulator　　A free electronic circuit simulation tool that runs on ROHM’s website. A wide variety of simulations are supported, from component selection and standalone device verification to system-level operational testing.
Key word：
Release time：2024-04-12 11:51 reading：666 Continue reading>>
ROHM's New Zero-Drift Op Amp with High Accuracy Regardless of Temperature Changes
Trade news

ROHM's New Zero-Drift Op Amp with High Accuracy Regardless of Temperature Changes

　　ROHM has developed a zero-drift operational amplifier (op amp) - the LMR1002F-LB. It is designed for industrial and consumer electronics devices and minimizes both input offset voltage and input offset voltage temperature drift. Capable of accurately amplifying output signals from sensors installed in various measurement devices, this new op amp is ideal for current sensing applications such as power control inverters and temperature/pressures/flow/gas detectors.　　As automotive and industrial equipment become more sophisticated and application control requirements are more precise, environmental sensors are increasingly being used to quantify temperature, pressure, and gas concentrations such as carbon dioxide to foster a sustainable society. However, sensor signals are so small that amplification is necessary, and if a general op amp with 1mV offset voltage is used to amplify the sensor signal by a factor of 1,000, for example, the offset voltage also increases by this amount - resulting in a voltage error of 1V (1,000mV) in the signal output. At the same time, input offset voltage temperature drift, which varies according to temperature and time, is difficult to compensate for.　　In response, ROHM developed a zero-drift op amp that addresses these problems by leveraging proprietary analog circuit technology - cultivated over many years. The LMR1002F-LB is ROHM’s first zero-drift op amp using the chopper method. In contrast to conventional low-offset op amps featuring a typical input offset voltage of 150µV (Max.), ROHM’s new product limits input offset voltage to just 9µV (94% lower). This eliminates the need for peripheral components or software to adjust the input offset voltage, reducing both design person-hours and costs. On top, input offset voltage temperature drift is just 0.05µV/°C (Max.) in the operating temperature range of -40°C to +125°C - the lowest among ROHM’s op amps. Enabling accurate amplification of measured sensor signals without being affected by environmental changes such as temperature contributes to high accuracy control of industrial equipment in factories. This, coupled with a wide supply voltage range of 2.7V to 5.5V and rail-to-rail input/output, make it ideal for a variety of industrial applications.　　Going forward, ROHM will continue to improve the performance and expand its lineup of zero-drift op amps. Moreover, ROHM will work to improve the performance of op amp lineups by reducing noise and offset - while increasing power savings, and expand the power supply voltage range demanded in the automotive and industrial equipment markets. The overall goal: contributing to solving social issues through higher accuracy application control.      Product Lineup　　Application Examples　　• Industrial equipment: Power control inverters, photovoltaic inverters, storage battery monitoring, pressure gauges, flow meters, temperature controllers, gas detectors, etc.　　• Consumer appliances: Refrigerators, washing machines, air conditioners, etc.　　Online Sales Information　　Sales Launch Date: December 2023　　Pricing: $8.0/unit (samples, excluding tax)　　The product will be offered at other online distributors as it becomes available.　　■Product Information　　Applicable Part No: LMR1002F-LB　　Terminology　　Input Offset Voltage　　Refers to the error voltage that occurs between the input terminals of an op amp.　　Input Offset Voltage Temperature Drift　　The fluctuation in input offset voltage caused by a rise/fall in temperature. The smaller this value is the higher the op amp accuracy. Zero-drift op amps automatically compensate for input offset temperature drift.　　Chopper Circuit　　A circuit configured to detect the offset voltage generated inside an op amp and automatically correct it via digital circuit control. This cancels offset voltage by feeding back the offset voltage stored as capacitance in the circuit using a voltage-current conversion circuit.　　Rail-to-Rail Input/Output　　A circuit format that allows the input and output voltages of an op amp to accommodate the entire supply voltage range. The supply voltage in this case is called a Rail.
Key word：
Release time：2024-02-19 14:10 reading：1461 Continue reading>>
10 transimpedance amplifier manufacturers in the world
Trade news

10 transimpedance amplifier manufacturers in the world

　　In the realm of electronics and signal processing, the Transimpedance Amplifier (TIA) serves as a vital component, enabling the conversion of minute current signals into measurable voltage outputs. Numerous manufacturers specialize in producing high-quality TIAs, catering to a wide array of applications across industries such as telecommunications, optical communication, biomedical instrumentation, and sensor interfacing.　　These manufacturers boast expertise in designing and crafting TIAs with varying specifications, catering to diverse requirements ranging from low-noise precision amplification to high-speed data processing. This introduction provides an overview of some leading manufacturers in the field of Transimpedance Amplifiers, highlighting their contributions, specialties, and technological advancements in this critical segment of electronic devices.　　一、Marvell　　Marvell Technology, Inc. is an American company, headquartered in Wilmington, Delaware, which develops and produces semiconductors and related technology.　　Products　　Compute　　Data Processing Units　　Networking　　Automotive　　DCI Optical Modules　　Ethernet Controllers　　Ethernet Switches　　Linear Driver　　PAM DSP　　Transimpedance Amplifiers　　Fibre Channel　　HDD　　SSD Controller　　ASIC　　二、Analog Devices　　Analog Devices, Inc. (NASDAQ: ADI) is a global semiconductor leader that bridges the physical and digital worlds to enable breakthroughs at the Intelligent Edge. Analog Devices, Inc., also known simply as Analog, is an American multinational semiconductor company specializing in data conversion, signal processing, and power management technology, headquartered in Wilmington, Massachusetts.　　Products　　A/D Converters (ADC)　　Amplifiers　　Analog Functions　　Audio Products　　Clock and Timing　　D/A Converters (DAC)　　Embedded Security and 1-Wire　　iButton and Memory　　Interface and Isolation　　Motor and Motion Control　　Optical Communications and Sensing　　Power Management　　Processors and Microcontrollers　　RF and Microwave　　Sensors and MEMS　　Switches and Multiplexers　　Video Products　　三、Renesas　　Renesas Electronics Corporation delivers trusted embedded design innovation with complete semiconductor solutions that enable billions of connected, intelligent devices to enhance the way people work and live. A global leader in microcontrollers, analog, power, and SoC products, Renesas provides comprehensive solutions for a broad range of automotive, industrial, home electronics, office automation, and information communication technology applications that help shape a limitless future.　　Products　　Microcontrollers & Microprocessors　　Analog Products　　Automotive Products　　Clocks & Timing　　Interface　　Memory & Logic　　Power & Power Management　　Programmable Mixed-signal, ASIC & IP Products　　RF Products　　Sensor Products　　Space & Harsh Environment　　Wireless Connectivity　　四、Semtech　　Semtech Corporation is a supplier of analog and mixed-signal semiconductors and advanced algorithms for consumer, enterprise computing, communications and industrial end-markets. It is based in Camarillo, Ventura County, Southern California. It was founded in 1960 in Newbury Park, California.　　Products　　Wireless RF　　Circuit Protection　　Signal Integrity　　Professional AV　　PerSe® Smart Sensing　　Broadcast Video　　Power Management　　五、Macom　　MACOM Technology Solutions is a developer and producer of radio, microwave, and millimeter wave semiconductor devices and components. The company is headquartered in Lowell, Massachusetts, and in 2005 was Lowell’s largest private employer. MACOM has more than 70 years of application expertise with multiple design centers, Si, GaAs and InP fabrication, manufacturing, assembly and test, and operates facilities throughout the United States, Europe, and Asia.　　Products　　RF/Microwave & mmWave　　Optical　　Networking　　六、Texas Instrument　　Texas Instruments Incorporated is an American information technology company headquartered in Dallas, Texas that designs and manufactures semiconductors and various integrated circuits. It is one of the top 10 semiconductor companies worldwide based on sales volume.　　They design, manufacture, test and sell analog and embedded semiconductors in markets that include industrial, automotive, personal electronics, communications equipment and enterprise systems.　　Products　　Amplifiers　　七、Xiamen Uxfastic　　Founded in February2003, XIAMEN UX HIGH-SPEED IC CO., LTD is one of the first companies in China specializing in the design of front-end, high-speed optical communication transceiver chips, and has participated in the formulation of over 20national industry standards with more than 100 independent intellectual property rights (IPR). As the leading enterprise in the domestic optical communication chip industry, it has been listed as the national enterprise with IPR advantages and the national technologically advanced small and medium-sized enterprise in SRDI.　　Products　　Trans-impedance amplifier　　Laser driver　　Limiting amplifier　　Transceiver　　MCU　　八、MaxLinear　　MaxLinear is an American hardware company. Founded in 2003, it provides highly integrated radio-frequency analog and mixed-signal semiconductor products for broadband communications applications. It is a New York Stock Exchange-traded company.　　Products　　Access　　Connectivity　　Infrastructure　　Power Management　　Interface　　九、EoChip　　Xiamen EoChip is headquartered in Xiamen, Fujian. The company focuses on the research and development of high-speed optical communication integrated circuit chips and low-power MCU chips.　　Products　　TIA　　BM TIA　　Current Mirror MCU　　BM LA　　Transceiver　　十、Qorvo　　Qorvo is an American multinational company specializing in products for wireless, wired, and power markets. The company was created by the merger of TriQuint Semiconductor and RF Micro Devices, which was announced in 2014 and completed on January 1, 2015. It trades on Nasdaq under the ticker symbol QRVO.　　Products　　Amplifiers　　Control Products　　Discrete Transistors　　Filters & Duplexers　　Frequency Converters & Sources　　Integrated Products　　Optical　　Passives　　Power Solutions　　Switches　　Wireless Connectivity
Key word：
Release time：2024-01-10 16:13 reading：1347 Continue reading>>
What is the function of transimpedance amplifier?
Trade news

What is the function of transimpedance amplifier?

　　The Transimpedance Amplifier (TIA) stands as a cornerstone in modern electronics, a quiet hero behind the scenes, enabling the transformation of minuscule current signals into meaningful and measurable voltage outputs. Its role extends across diverse domains, from optical communications to biomedical instrumentation, showcasing its versatility and indispensability.　　As technology strides forward, the transimpedance amplifier continually evolves, adapting to ever-changing demands for faster speeds, higher precision, and improved signal conditioning. This article explores the essence and significance of the transimpedance amplifier, shedding light on its types, principles, applications, and pivotal role in shaping various fields of science and engineering.　　What is transimpedance amplifier?A transimpedance amplifier is an electronic device used to convert current into a proportional voltage signal. It’s commonly employed in applications involving photodiodes or other similar sensors that generate a current output in response to light or other stimuli.　　The primary function of a transimpedance amplifier is to convert this tiny current signal into a usable voltage output. It does so by providing a low-impedance path for the current to flow through, while simultaneously generating an output voltage proportional to this input current.　　By using feedback elements like resistors or operational amplifiers, transimpedance amplifiers can accurately convert and amplify these small current signals into measurable voltage signals. They are widely used in various fields such as optical communication, photodetection, medical instrumentation, and many other sensor-related applications.　　What are the different types of transconductance amplifiers?Transconductance amplifiers are devices that convert a voltage input into a proportional current output. There are various types based on their implementation and application. Here are a few:　　Operational Transconductance Amplifier (OTA): An OTA is a versatile building block used in analog signal processing. It uses an operational amplifier in a configuration where the output current is proportional to the differential input voltage.　　Differential Amplifier: This amplifier has two input terminals and amplifies the voltage difference between these inputs. It’s often used in instrumentation and signal processing.　　Field-Effect Transistor (FET) Amplifier: FETs can be used to create transconductance amplifiers, particularly in integrated circuits. MOSFET-based transconductance amplifiers are common due to their suitability for IC design.　　Voltage-Controlled Current Source (VCCS): It’s a basic type of transconductance amplifier that generates an output current proportional to an input voltage.　　Current-Feedback Operational Amplifier (CFOA): This is a specialized operational amplifier where the current, rather than the voltage, is used as the input signal. It’s commonly used in current-mode signal processing.　　Translinear Circuit: These circuits are based on exponential devices (like diodes) and produce an output current that’s a function of the logarithm or exponential of the input voltage.　　Why do we need transimpedance amplifier?Transimpedance amplifiers serve several crucial purposes in various applications:　　Convert Current to Voltage: Many sensors, such as photodiodes or photomultiplier tubes, generate current signals in response to light or other stimuli. Transimpedance amplifiers convert these tiny current signals into measurable voltage outputs, making them easier to process and analyze.　　Signal Amplification: They amplify weak current signals. Since the output of sensors like photodiodes is usually very small, amplifying these signals to usable levels is essential for accurate measurement and further processing.　　Low-Impedance Conversion: Transimpedance amplifiers provide a low-impedance path for the input current. This prevents loading effects on sensitive sensors, maintaining the integrity of the signal and preventing distortion or alteration.　　Noise Filtering: They can help in filtering out unwanted noise. By amplifying the signal and suppressing noise that might be present, transimpedance amplifiers improve the signal-to-noise ratio, enhancing the accuracy of measurements.　　Wide Application Range: These amplifiers find application in various fields, including optical communication, medical instrumentation (such as pulse oximeters), laser-based systems, spectroscopy, and many sensor-related applications where precise current-to-voltage conversion is needed.　　What are the applications of transimpedance amplifier?　　Transimpedance amplifiers find applications in various fields due to their ability to convert current signals into voltage signals accurately. Some key applications include:　　Photodetection: In photodiodes or photomultiplier tubes used in cameras, optical communication systems, or light sensors, transimpedance amplifiers convert the tiny current produced by incident light into a measurable voltage signal for image capture or data transmission.　　Optical Receivers: They’re integral in fiber optic communication systems, where they amplify the weak current generated by incoming optical signals, allowing for accurate data retrieval and transmission.　　Biomedical Instruments: Used in medical devices like pulse oximeters, where they convert the current generated by photodiodes measuring oxygen saturation in blood into a voltage for monitoring and diagnostics.　　Spectroscopy and Analytical Instruments: Transimpedance amplifiers help convert the current generated by sensors measuring light absorption or emission in spectrometers, enabling precise analysis in fields like chemistry, environmental science, and material analysis.　　Laser Diode Control: They assist in controlling and stabilizing the output of laser diodes by converting their current output into a voltage for feedback control, ensuring consistent performance.　　Particle Detectors: In scientific experiments or industrial applications using particle detectors, transimpedance amplifiers convert the current generated by these detectors into measurable voltage signals for analysis.　　Sensor Interfaces: They serve as front-end signal conditioning components for various sensors, converting their current outputs into voltage signals suitable for further processing by microcontrollers or other devices.　　What is the difference between transconductance and transimpedance amps?Transconductance amplifiers and transimpedance amplifiers serve different purposes and have distinct functionalities:　　Transconductance Amplifier:　　Input-Output Relationship: Transconductance amplifiers convert a voltage input into a proportional current output. In other words, they measure the change in output current in response to a change in input voltage.　　Functionality: These amplifiers are used to control current flow based on voltage inputs. They’re commonly utilized in applications where a varying input voltage needs to control or modulate a current, such as in audio amplifiers, filters, and voltage-controlled oscillators.　　Example: Operational Transconductance Amplifiers (OTAs) are a type of transconductance amplifier.　　Transimpedance Amplifier:　　Input-Output Relationship: Transimpedance amplifiers, on the other hand, convert a current input into a proportional voltage output. They measure the change in output voltage in response to a change in input current.　　Functionality: These amplifiers are particularly useful when dealing with sensors that output current signals, like photodiodes or photomultiplier tubes. They convert the tiny current generated by such sensors into measurable voltage signals, amplifying and conditioning them for further processing or analysis.　　Example: Used extensively in optical communication systems, biomedical instruments (like pulse oximeters), and various sensors where current signals need to be converted into voltage signals for processing.　　How does transimpedance amplifier work?A transimpedance amplifier (TIA) works by converting a current input into a proportional voltage output. It’s commonly used to amplify and convert small current signals from sensors, like photodiodes, into measurable and usable voltage signals. Here’s how it typically operates:　　Input Stage: The TIA receives a small current signal from the sensor, such as a photodiode, which is proportional to the incident light or other stimuli.　　Feedback Configuration: The TIA employs feedback components, usually a resistor or an operational amplifier in a specific configuration, to provide a low-impedance path for the input current.　　Virtual Ground Principle (in operational amplifier-based TIAs): In cases where an operational amplifier is used, the inverting input terminal is often set at virtual ground potential, maintaining it at a stable voltage level.　　Conversion to Voltage: The input current flows through the feedback resistor, producing a voltage across this resistor proportional to the input current (as per Ohm’s Law: Voltage = Current × Resistance). This voltage becomes the output of the amplifier.　　Amplification and Signal Conditioning: The TIA amplifies this voltage signal to a level suitable for further processing or analysis. The gain of the amplifier, determined by the feedback resistor and the amplifier’s characteristics, determines the extent of signal amplification.　　Output Stage: The amplified voltage signal is then available as the output of the transimpedance amplifier, which can be used for various purposes like measurement, analysis, or further signal processing.　　How do I choose a transimpedance amplifier?Choosing a transimpedance amplifier (TIA) involves considering several key factors that align with your specific application requirements. Here’s a guideline to help you select the right TIA:　　Input Signal Characteristics:　　Input Current Range: Determine the range of input currents your sensor or photodiode produces. Ensure the TIA’s input stage can handle this range without saturation or distortion.　　Bandwidth: Consider the frequency range of your signal. Choose a TIA with a bandwidth sufficient to process the frequencies you’re dealing with.　　Gain and Sensitivity:　　Amplification Requirement: Determine the level of amplification needed. Different TIAs offer different gain values, so select one that matches your amplification requirements.　　Noise Performance: Evaluate the TIA’s noise specifications, especially for low-level signals. Lower noise figures are crucial for accurate measurement in sensitive applications.　　Speed and Response Time:　　Bandwidth and Speed: For high-speed applications, choose a TIA with the required bandwidth and response time that aligns with your signal processing needs.　　Component and Design Features:　　Feedback Components: Assess the type of feedback network used in the TIA. Depending on your application, choose between resistive, capacitive, or hybrid networks.　　Input and Output Impedance: Ensure compatibility with your sensor or subsequent stages in your circuit.　　Power Supply and Environment:　　Supply Voltage: Ensure the TIA operates within your available power supply range.　　Temperature and Environmental Conditions: Consider the operating temperature range and environmental conditions if your application involves extreme conditions.　　Application-Specific Considerations:　　Optical Communication vs. Biomedical: Different applications might require specific TIAs optimized for their use. For instance, optical communication may demand higher speeds, while biomedical applications might emphasize low noise and accuracy.　　Datasheet Evaluation:　　Review the TIA’s datasheet thoroughly to understand its specifications, performance characteristics, and application notes provided by the manufacturer.　　Testing and Evaluation:　　If possible, test the TIA in your specific application scenario or review case studies and user experiences to ensure it meets your needs effectively.　　ConclusionIn the vast landscape of signal processing and sensor interfacing, the Transimpedance Amplifier stands tall as a fundamental bridge, connecting the world of current-based signals to the realm of voltage-processing circuits. Its ability to convert, amplify, and condition minute current inputs from sensors like photodiodes has revolutionized countless industries.　　As we navigate the complexities of modern technology, the TIA remains a steadfast ally, adapting to the growing demands of speed, precision, and reliability. Its significance endures, promising innovation and advancement in fields ranging from telecommunications to medical diagnostics, ensuring that the subtle currents of our world are transformed into actionable and valuable voltage signals. The Transimpedance Amplifier’s legacy persists—a silent champion in the landscape of electronic engineering.
Key word：
Release time：2024-01-08 14:32 reading：1529 Continue reading>>
AnalogySemi Launches High Precision, ± 275V High Common Mode Differential Amplifier IND90x
Trade news

AnalogySemi Launches High Precision, ± 275V High Common Mode Differential Amplifier IND90x

　　AnalogySemi, an excellent domestic analog and digital analog hybrid chip designer dedicated to providing high-quality chips, has announced the launch of the IND90x series high-precision, high reliability, ± 275V high common mode voltage differential amplifier. This series of products has excellent DC accuracy and reliability performance, with a maximum gain error temperature drift of 3ppm/° C. The actual testing of ESD HBM can reach up to 1.75kV, which is superior to similar products. The IND90x series differential amplifier can be used as an alternative to isolation amplifiers, isolation operational amplifiers, and Hall sensors, and is widely used in various high common mode voltage applications, such as high-voltage battery pack voltage and current monitoring, battery voltage measurement for stacked battery packs, power automation, power supply current monitoring, and motor control scenarios.　　Features　　High common mode voltage range: ± 275VCMRR: 90dB (minimum)Power supply voltage range: ± 2.0V to ± 18VStatic current: 570 μ A (typical value)Excellent DC accuracy:Offset voltage: ± 850 μ V (maximum value)Offset voltage temperature drift: 10 μ V/° C (maximum)Gain error: 0.035% (maximum)Gain error temperature drift: 3ppm/° C (maximum)Gain nonlinearity: 0.0001% FSR (typical value)• AC performanceBandwidth: 240kHzSwing rate: 1.6V/ μ s• Input protection rangeCommon mode voltage: ± 500VDifferential voltage: ± 500V• Packaging: SOIC-8Due to the enhanced protection of input pins, the IND90x precision differential amplifier can withstand the impact of common mode or differential overload up to instantaneous 500V, and is widely used as an alternative to isolated operational amplifiers in many scenarios that do not require current isolation. When replacing isolation amplifiers, IND90x not only effectively reduces design costs, but also avoids the ripple, noise, and additional static power consumption caused by the input power supply of the isolation amplifier. In addition, the bandwidth of 240kHz and extremely low nonlinearity make the IND90x's AC performance significantly better than traditional isolation amplifiers, thereby achieving better system measurement accuracy.　　In addition to the above advantages, the IND90x further strengthens the input protection structure, coupled with better ESD performance, giving it unique advantages for applications such as hot swapping. Therefore, the IND90x product can also be widely used in various high common mode voltage applications, such as measuring the voltage of individual batteries in stacked battery packs, power automation, power supply current monitoring, and motor control.　　As the first high common-mode differential amplifier of analog, the launch of IND90x not only fills the gap in the layout of analog semiconductor operational amplifiers, but also continues to expand the product lineup of analog semiconductor amplifiers. At present, AnalogySemi's amplifier products have been mass-produced into seven categories, including low-power amplifiers, instrument amplifiers, zero temperature drift amplifiers, current sampling amplifiers, current power monitors, high common mode differential amplifiers, etc., with over 200 product models. In the future,AnalogySemi will continue to improve the amplifier product family to meet the diverse needs of customers with a rich product range.
Key word：
Release time：2023-08-23 11:12 reading：2396 Continue reading>>
Amphenol Piher Hall-Effect Rotary Position Sensors (HRPS)
Trade news

Amphenol Piher Hall-Effect Rotary Position Sensors (HRPS)

　　Amphenol Piher Hall-Effect Rotary Position Sensors (HRPS) with integrated AMP super-seal connectors provide a cost-effective and non-contact position-sensing solution for application in harsh environments. These sensors use a permanent magnet that is securely fastened to the shaft and acts as the only moving component in the sensors.       The HRPS sensors are designed with endless mechanical rotational angles without dead bands and are versatile with configurable electrical angles from 50 to 360 degrees. These sensors feature contactless operation and allow an extra-long product lifetime of up to 50 million cycles. Ideally, these hall-effect sensors are used in industrial, home/building automation, transportation, and marine applications.　　FEATURES　　Cost-effective　　Contactless operation　　Integrated with AMP super seal connectorsVersatile design with configurable angular ranges from 50 to 360 degreesPermanent magnet that is securely fastened to the shaftExtra-long product lifetime of up to 50 million cyclesDurable and robust design　　Support for low and high-voltage power supply      APPLICATIONS　　Industrial:　　Autonomous warehouse robotics　　Robotics and automation feedback　　Robot arm position　　Valve monitoring　　Conveyor operation　　Marine - steering and shifter sensor　　Home and building automation - HVAC systemsTransportation:　　Steering wheel angle　　Pedal Position　　Suspension/height detection　　Fork height and mast tilt　　Bucket position　　Hitch position　　Transmission gear shift
Key word：
Release time：2023-04-19 13:39 reading：3428 Continue reading>>
AMEYA360:Amphenol Piher HCSP-3BS Current Sensor
Trade news

AMEYA360:Amphenol Piher HCSP-3BS Current Sensor

　　Amphenol Piher HCSP-3BS Current Sensor is a three-phase open loop sensor with busbar mounting. This current sensor generates a ratiometric analog output voltage signal proportional to the current flowing through the conductor. The sensor has been designed to accurately measure AC and DC currents in automotive battery management and motor control applications based on Hall effect technology. Amphenol Piher HCSP-3BS Current Sensor applications include EV motor inverters and DC/DC converters.　　FEATURES　　Open loop current transducer based on Hall effect　　Up to ±1.200A measured current values　　3-phase busbar mounting　　Three simple analog ratiometric outputs　　Non-intrusive technology　　Galvanic separation between power and control　　Full compatibility with Infineon HybridPack　　Press fit contacts to eliminate soldering　　APPLICATIONS　　Motor control　　EV motor inverters　　DC/DC converters　　SPECIFICATIONS　　4.5V to 5.5V supply voltage　　33mA to 48mA supply current　　0.5V to 4.5V output voltage　　2.5V offset voltage　　70kHz to 250kHz frequency bandwidth　　-40°C to +125°C operating temperature　　0.65% to 2.5% typical error (at 25°C; Vcc = 5V)　　1% to 3.5% max. error (at -40°C to +125°C; Vcc = 5V)
Key word：
Release time：2023-04-17 11:53 reading：7196 Continue reading>>
AMEYA360:Amphenol Times Microwave Systems Commercial Space Assemblies
Trade news

AMEYA360:Amphenol Times Microwave Systems Commercial Space Assemblies

　　Amphenol Times Microwave Systems Commercial Space Assemblies include three kinds of space assembly cables: MaxGain?, InstaBend?, and InstaBend PhaseStable. MaxGain assemblies are high-performance, ultra-low-loss, high-frequency microwave coaxial cables built with spiral outer conductor technology. InstaBend cables are flexible, coaxial microwave assemblies that connect RF circuit cards, modules, and enclosure panels.     The cable can be bent very closely behind the connector, simplifying cable routing. InstaBend PhaseStable assemblies are low-loss, highly flexible, foam-core micro coaxial cables with a broad frequency range and strong durability. Amphenol Times Microwave Systems Commercial Space Assemblies are specifically designed for space assembly applications.　　FEATURES　　30Mrads radiation environment　　-90°C to +150°C temperature range　　T-VAC compatible　　TML ≤1% and CVCM ≤0.01% outgassing per ASTM E595　　Baseline electrical performance (IL, VSWR)　　Low outgassing materials per ASTM E595　　Class 100,000 clean room manufacturing　　Vented connectors, if applicable　　Optimized for low attenuation　　Ultra-stable performance with flexure　　High shielding effectiveness (>90dB)　　APPLICATIONS　　Test assemblies　　RF satellite assemblies in the payload　　RF transmit and receive assemblies in the antenna　　Board connectors　　Adapters　　Ground station assemblies
Key word：
Release time：2023-03-31 09:34 reading：3120 Continue reading>>
AMEYA360：TE/ <span style='color:red'>AMP</span> Micro CT Connectors
Trade news

AMEYA360：TE/ AMP Micro CT Connectors

　　TE Connectivity's / AMP Connectors AMP Micro CT Connectors are designed to provide an economical wire routing solution for power or signal needs. These connectors offer impressive performance in their harness-making capability. The AMP micro CT connectors feature IDC termination, discrete wire interconnects, and AWG 26 to 28 cable sizes.       These CT connectors offer an expansive range of configurations, and the circuits range from 2-25 single rows. The AMP micro CT connectors are RoHS compliant and operate within the -30°C to 85°C temperature range. Typical applications include business equipment, industrial machines, printers, PCs, and air conditioners.　　FEATURES　　Small footprint　　Efficiency optimizations　　Expansive range of configurations　　Superior performance　　Cost-effective　　IDC termination　　Discrete wire interconnect　　Circuits range from 2-25 single row　　AWG 26 to 28 cable sizes　　RoHS compliant　　UL/CSA listed: File E28476　　APPLICATIONS　　Business equipment　　Industrial machines　　PC　　Printer　　Fax　　C-TV　　Audio　　Air conditioner　　Anywhere signals and power are routed
Key word：
Release time：2023-03-27 11:49 reading：1444 Continue reading>>

Turn to

/ 3

Popular categories
Semiconductors Circuit Protection Electromechanical Embedded Solutions Connectors, Interconnects Sensors, Transducers Optoelectronics Development Kits Test and Measurement Power Fans, Thermal Management Boxes, Enclosures, Racks Cables, Wires Passive Components Others
  • Week of hot material
  • Material in short supply seckilling
model brand Quote
TL431ACLPR Texas Instruments
MC33074DR2G onsemi
CDZVT2R20B ROHM Semiconductor
RB751G-40T2R ROHM Semiconductor
BD71847AMWV-E2 ROHM Semiconductor
model brand To snap up
IPZ40N04S5L4R8ATMA1 Infineon Technologies
ESR03EZPJ151 ROHM Semiconductor
TPS63050YFFR Texas Instruments
BP3621 ROHM Semiconductor
STM32F429IGT6 STMicroelectronics
BU33JA2MNVX-CTL ROHM Semiconductor
Hot labels
ROHM
IC
Averlogic
Intel
Samsung
IoT
AI
Sensor
Chip
Original authorized brand
More Licensed Brands>>
Information leaderboard
  • Week of ranking
  • Month ranking

About us

Qr code of ameya360 official account

Identify TWO-DIMENSIONAL code, you can pay attention to

AMEYA360 mall (www.ameya360.com) was launched in 2011. Now there are more than 3,500 high-quality suppliers, including 6 million product model data, and more than 1 million component stocks for purchase. Products cover MCU+ memory + power chip +IGBT+MOS tube + op amp + RF Bluetooth + sensor + resistor capacitance inductor + connector and other fields. main business of platform covers spot sales of electronic components, BOM distribution and product supporting materials, providing one-stop purchasing and sales services for our customers.

Please enter the verification code in the image below：

verification code