特性
- 95µA maximum supply current
- Maximum offset voltage
- 200µV (EL8170)
- 1000µV (EL8173)
- Maximum 3nA input bias current
- 396kHz -3dB bandwidth (G = 10)
- 192kHz -3dB bandwidth (G = 100)
- Single supply operation
- Input voltage range is rail-to-rail
- Output swings rail-to-rail
- Pb-Free (RoHS Compliant)
描述
The EL8170 and EL8173 are micropower instrumentation amplifiers optimized for single supply operation over the +2. 4V to +5. 5V range. Inputs and outputs can operate rail-to-rail. As with all instrumentation amplifiers, a pair of inputs provide very high common-mode rejection and are completely independent from a pair of feedback terminals. The feedback terminals allow zero input to be translated to any output offset, including ground. A feedback divider controls the overall gain of the amplifier. The EL8170 is compensated for a gain of 100 or more, and the EL8173 is compensated for a gain of 10 or more. The EL8170 and EL8173 have bipolar input devices for best offset and 1/f noise performance. The amplifiers can be operated from one lithium cell or two Ni-Cd batteries. The EL8170 and EL8173 input range includes ground to slightly above positive rail. The output stage swings to ground and positive supply (no pull-up or pull-down resistors are needed).
应用
- Battery- or Solar-Powered Systems
- Strain Gauges
- Current Monitors
- Thermocouple Amplifiers
| Part Number | Status | Samples | Stock | RoHS | Package | Lead Count (#) | Carrier Type | Moisture Sensitivity Level (MSL) | Pb (Lead) Free | Pb Free Category | Temp. Range (°C) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| EL8170FSZ | Obsolete | N/A | In Stock | RoHS:EN | SOICN | 8# | Tube | 3 | Yes | Pb-Free 100% Matte Tin Plate w/Anneal-e3 | -40 to +125°C |
| EL8170FSZ-T7 | Obsolete | N/A | In Stock | RoHS:EN | SOICN | 8# | Reel | 3 | Yes | Pb-Free 100% Matte Tin Plate w/Anneal-e3 | -40 to +125°C |
| EL8170FSZ-T7A | Obsolete | N/A | Out of Stock | RoHS:EN | SOICN | 8# | Reel | 3 | Yes | Pb-Free 100% Matte Tin Plate w/Anneal-e3 | -40 to +125°C |
- 培训资料英语PDF 162 KB R13TB0003EU0100 Rev.1.00 2023年12月12日
- 应用说明英语PDF 381 KB R13AN0015EU0100 Rev.1.00 2022年5月16日AI 生成的摘要: Low-voltage precision operational amplifiers from Renesas feature ultra-low input offset voltages with on-chip auto-zeroing, ideal for precise sensor signal conditioning in compact applications. Key design considerations include minimizing thermoelectric (Seebeck) voltages caused by PCB junctions and temperature gradients, which can introduce offset errors amplified by high gain. Techniques such as using dummy resistors, maintaining uniform PCB temperature with ground planes, and employing guard rings reduce these errors. The ISL28134 supports precision high-side current sensing with adaptations for high-voltage systems using level shifting via Zener diodes. Output current can be increased by adding an NPN transistor as a current booster, ensuring linear operation within voltage limits. The document provides detailed circuit examples and design guidelines for optimizing performance and minimizing errors in low-voltage op-amp applications.
- 应用说明英语PDF 263 KB r13an0003eu0100-biasing-op-amps 2019年12月06日AI 生成的摘要: Proper biasing of operational amplifiers is essential to avoid malfunction in AC-coupled circuits. A missing DC bias path causes long stabilization times and potential failures. Adding input resistors to ground provides a DC path for bias currents, minimizing offset errors. For single-supply AC-coupled amplifiers, biasing uses a reference voltage, ideally from a high-PSRR voltage reference or buffered voltage divider, to maintain signal symmetry and reduce noise. Understanding frequency responses of input and feedback components is crucial for setting bandwidth and gain characteristics.
- 应用说明英语PDF 564 KB an1993 2018年5月22日AI 生成的摘要: Voltage feedback (VFB) amplifiers use a differential input pair, a high-impedance stage, and an output buffer to convert input voltage differences into output voltage. The VFB amplifier's gain decreases at a dominant pole frequency due to compensation capacitors. Current feedback (CFB) amplifiers include a class AB input amplifier, current mirror, high-impedance stage, and output buffer. CFB amplifiers provide faster switching and higher slew rates by drawing charge/discharge currents directly from supply rails, unlike VFB amplifiers which are limited by biasing current sources.
- 产品咨询英语PDF 215 KB PA13053 2013年10月16日
- 产品变更通告英语PDF 152 KB PCN12085 2012年11月07日
- 产品变更通告英语PDF 135 KB PCN12084 2012年10月15日
- 产品变更通告英语PDF 52 KB PCN10052 2010年8月20日
- 应用说明英语PDF 1.59 MB an1298 2009年1月22日AI 生成的摘要: The document explains various instrumentation amplifier configurations, including difference amplifiers, two-amplifier, and classic three-amplifier topologies, focusing on gain setting, common mode rejection ratio (CMRR), and resistor matching requirements. It highlights the importance of resistor tolerance for high CMRR and discusses input impedance and voltage limitations. The document also describes monolithic instrumentation amplifiers with integrated resistor trimming, gain setting via external resistors, and key specifications such as input stage types, supply current, bandwidth, and noise performance.
- 应用说明英语PDF 357 KB an1694 2004年1月19日AI 生成的摘要: The document outlines the four fundamental internal blocks of an operational amplifier and presents a simple 2:1 stage circuit diagram. It includes important legal notices from Renesas Electronics regarding the use, liability, and intellectual property rights of their semiconductor products. The document clarifies product quality grades, intended applications, and restrictions on use in life-critical or hazardous systems. It emphasizes compliance with applicable laws and safety responsibilities when using Renesas products. Contact information for Renesas sales offices worldwide is also provided.
- 应用说明英语PDF 1.02 MB an1613 2004年1月19日AI 生成的摘要: The document details the process of importing SPICE netlists into Allegro Design Entry CIS for simulation. It guides users through verifying no errors during schematic translation, associating and replacing symbols for SPICE models, and mapping model pins to symbol pins. It also explains setting up new projects, creating simulation profiles, adding libraries, and configuring analysis types such as AC Sweep/Noise. The instructions emphasize selecting appropriate symbols based on pin count and ensuring all files reside in the same directory for smooth simulation setup.
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- 应用说明英语PDF 381 KB R13AN0015EU0100 Rev.1.00 2022年5月16日AI 生成的摘要: Low-voltage precision operational amplifiers from Renesas feature ultra-low input offset voltages with on-chip auto-zeroing, ideal for precise sensor signal conditioning in compact applications. Key design considerations include minimizing thermoelectric (Seebeck) voltages caused by PCB junctions and temperature gradients, which can introduce offset errors amplified by high gain. Techniques such as using dummy resistors, maintaining uniform PCB temperature with ground planes, and employing guard rings reduce these errors. The ISL28134 supports precision high-side current sensing with adaptations for high-voltage systems using level shifting via Zener diodes. Output current can be increased by adding an NPN transistor as a current booster, ensuring linear operation within voltage limits. The document provides detailed circuit examples and design guidelines for optimizing performance and minimizing errors in low-voltage op-amp applications.
- 应用说明英语PDF 263 KB r13an0003eu0100-biasing-op-amps 2019年12月06日AI 生成的摘要: Proper biasing of operational amplifiers is essential to avoid malfunction in AC-coupled circuits. A missing DC bias path causes long stabilization times and potential failures. Adding input resistors to ground provides a DC path for bias currents, minimizing offset errors. For single-supply AC-coupled amplifiers, biasing uses a reference voltage, ideally from a high-PSRR voltage reference or buffered voltage divider, to maintain signal symmetry and reduce noise. Understanding frequency responses of input and feedback components is crucial for setting bandwidth and gain characteristics.
- 应用说明英语PDF 564 KB an1993 2018年5月22日AI 生成的摘要: Voltage feedback (VFB) amplifiers use a differential input pair, a high-impedance stage, and an output buffer to convert input voltage differences into output voltage. The VFB amplifier's gain decreases at a dominant pole frequency due to compensation capacitors. Current feedback (CFB) amplifiers include a class AB input amplifier, current mirror, high-impedance stage, and output buffer. CFB amplifiers provide faster switching and higher slew rates by drawing charge/discharge currents directly from supply rails, unlike VFB amplifiers which are limited by biasing current sources.
- 应用说明英语PDF 1.59 MB an1298 2009年1月22日AI 生成的摘要: The document explains various instrumentation amplifier configurations, including difference amplifiers, two-amplifier, and classic three-amplifier topologies, focusing on gain setting, common mode rejection ratio (CMRR), and resistor matching requirements. It highlights the importance of resistor tolerance for high CMRR and discusses input impedance and voltage limitations. The document also describes monolithic instrumentation amplifiers with integrated resistor trimming, gain setting via external resistors, and key specifications such as input stage types, supply current, bandwidth, and noise performance.
- 应用说明英语PDF 357 KB an1694 2004年1月19日AI 生成的摘要: The document outlines the four fundamental internal blocks of an operational amplifier and presents a simple 2:1 stage circuit diagram. It includes important legal notices from Renesas Electronics regarding the use, liability, and intellectual property rights of their semiconductor products. The document clarifies product quality grades, intended applications, and restrictions on use in life-critical or hazardous systems. It emphasizes compliance with applicable laws and safety responsibilities when using Renesas products. Contact information for Renesas sales offices worldwide is also provided.查看更多 (10)
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- 产品咨询英语PDF 215 KB PA13053 2013年10月16日
- 产品变更通告英语PDF 152 KB PCN12085 2012年11月07日
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