New CMOS Op-Amp Delivers Leading-Class* <span style='color:red'>Low</span> Noise
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New CMOS Op-Amp Delivers Leading-Class* Low Noise

　　ROHM authorized online sales platform　　Ameya360 Components Supply Platform：www.ameya360.com　　If interested kindly click here for more details:　　http://www.ameya360.com/product/6873651　　ROHM has recently announced the availability of a CMOS op-amp featuring the lowest noise in the industry optimized for industrial applications requiring high-accuracy sensing, such as accelerometers used in sonar systems, and optical sensors that handle ultra-small signals.　　　　In recent years, in addition to IoT devices, sensors are being adopted in a variety of applications from portables and vehicle systems to industrial equipment, to improve functionality and provide advanced control. Used to detect and convert various environmental and physical changes into signals, sensors demand high accuracy, but at the same time peripheral sensor circuitry is trending towards lower voltages to achieve greater power savings.　　Op-amps are configured at the rear stage to amplify the analog sensor output, but because sensor signals are so weak it is necessary to implement noise countermeasures to ensure high-accuracy transmission. In response, ROHM developed a high noise tolerant op-amp for the automotive market utilizing a vertically integrated production system that leverages original analog design technologies and processes. ROHM has introduced an op-amp that delivers the industry’s best performance against external noise optimized for consumer devices and industrial equipment.　　The LMR1802G-LB, developed utilizing ROHM’s market-leading analog technology covering circuit design, processes, and layout, reduces input equivalent noise voltage density by half (2.9nV/√Hz at 1kHz, 7.8nV/√Hz at 10Hz) compared to conventional products, significantly improving the detection performance of sensor signals. In addition, best-in-class phase margin (68°) and capacitive load tolerance (500pF) provide excellent stability (difficult to oscillate, easy to handle). This enables accurate amplification of voltages in the order of ?V, ensuring support for industrial and consumer applications requiring high-precision sensing.　　　　Key Features　　1．Easy to use despite low noise results in the industry’s best performing CMOS op-amps　　　　This latest product combines ROHM’s superior analog technology covering circuit design (new circuit at the differential input stage), layout (analog design cultivated over many years), and processes (optimized for low noise) to achieve ultra-low-noise. The input equivalent noise voltage density of 2.0nV/√Hz at 1kHz and 7.8nV/√Hz at 10Hz are approximately half that of products on the market, ensuring superior low-noise performance.　　In addition, in the past when pursuing lower noise in op-amps there were problems such as poor phase margin and capacitive load characteristics, as well as oscillation that made circuit design difficult, but introducing a new circuit at the differential input stage allowed ROHM to achieve industry-low noise along with a class-leading phase margin of 68° and capacitive load tolerance of 500pF.　　This doubles the detection capability of sensor signals over conventional solutions, enabling accurate amplification of voltages on the order of ?V, improving performance with sensors that demand higher precision.　　2. Minimizes input offset voltage and input bias current　　　　In terms of op-amp configuration, the output voltage should be 0V when the input is 0V, but an offset voltage is often generated as an error. Also, if the sensor’s output impedance is high the sensor output voltage will be affected if the input bias current of the op-amp is large. Consequently, these two error factors must be made as small as possible to ensure optimal performance.　　The LMR1802G-LB offers an input offset voltage of 450?V and input bias current of only 0.5pA (4x and 2x less than conventional products, respectively), providing high accuracy amplification.　　Pricing:TBD　　Availability: June 2018 (Samples), October 2018 (OEM quantities)　　Application Examples　　Distance measuring equipment utilizing sonar and optical sensors　　Security systems, IR remote controls, night vision, and other sets equipped with IR sensors　　Devices demanding high accuracy operation (i.e. HDD)　　Equipment management systems including flow meters and gas detectors　　Other industrial and consumer sets integrating sensors requiring high accuracy detection　　Specifications　　　　Terminology　　CMOS (Complementary Metal Oxide Semiconductor)Typically features smaller input current vs bipolar types, making it suitable for low-voltage operation.
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Release time：2018-08-18 00:00 reading：16467 Continue reading>>
Ultra-Compact <span style='color:red'>Low</span> Profile 2-Color Chip LEDs
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Ultra-Compact Low Profile 2-Color Chip LEDs

　　Rohm officially licensed Online sales platform　　Ameya360 Components Supply Platform www.ameya360.com　　Click here for purchase：http://www.ameya360.com/product/6772067　　Kyoto and Santa Clara, Calif., – August 24, 2017 – ROHM has recently announced the availability of the industry's smallest class (1608 size) of 2-color chip LEDs. In addition to their breakthrough size, the SML-D22MUW features a special design that improves reliability along with a backside electrode configuration that supports high-resolution displays.　　In recent years, chip LEDs are being increasingly used for numerical displays in industrial equipment and consumer devices. Conventional numerical displays utilize a single color to indicate numbers, but there is a growing need to change the color to make it easier to recognize abnormalities. However, this typically entails utilizing two separate LEDs, which doubles the mounting area along with development costs, or opting for a standard 2-color LED that also increases board size.　　In contrast, proprietary technologies and processes allowed ROHM to integrate 2 chips in the same package size as conventional single-color LEDs, making it possible to emit multiple colors in a smaller footprint. Board space is reduced by 35% over standard 1.5 x 1.3mm 2-color LEDs, contributing to thinner displays. And after taking into consideration usage conditions during reflow, countermeasures were adopted that prevents solder penetration within the resin package to ensure greater reliability.　　Availability: Now　　Pricing: $0.136/unit (3,000pcs)　　Key Features　　1. Class-leading compact size contributes to smaller, thinner devices　　In addition to element miniaturization, the SML-D22MUW leverages PICOLEDTM mounting and wire bonding technologies to mount 2 chips (red and green) in a compact 1.6 x 0.8mm package – the same size as conventional single-color LEDs.　　Also, the extremely close configuration of color elements results in excellent color mixing properties that make it possible to produce not only red and green colors, but a number of intermediate colors as well.　　2. Solder penetration countermeasure ensures superior reliability　　Incorporating a stopper called a ‘resist' before the gold plating process blocks the gold pattern (that features good wettability). This prevents solder penetration into the resin, eliminating failures due to short-circuits and contributing to greater reliability.　　3. Backside electrode configuration supports high-resolution display　　Adopting a backside electrode design allows mounting in narrow spaces, enabling high-definition display in dot matrix and other applications.　　Backside Electrode Configuration　　Lineup　　Terminology　　PICOLED™　　ROHM's ultra-compact LEDs ideal for portable equipment such as wearables and mobile devices.
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Release time：2017-09-07 00:00 reading：12909 Continue reading>>

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