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Analog Devices Inc. 亚德诺半导体 ADA4528 精密零漂移放大器

亚德诺半导体 ADA4528 放大器是超低噪声、零漂移运算放大器，具有轨到轨输入与输出摆幅。ADA4528-1/ADA4528-2 运放具有 2.5μV 失调电压、0.015μV/°C 失调电压漂移，噪声典型值为 97nVp-p （0.1Hz 至 10Hz, AV = +100），因而非常适合不容许存在误差源的应用。ADA4528-1/ADA4528-2 运放具有 2.2V 至 5.5V 的宽工作电源电压范围、高增益、出色的 CMRR 和 PSRR 特性，是要求低电平信号精密放大应用的理想之选，如位置和压力传感器、应变计和医疗仪器等。

The ADA4528-1 and ADA4528-2 Op Amps have a wide operating supply range of 2.2V to 5.5V, high gain, and excellent CMRR and PSRR specifications, making these devices ideal for applications that require precision amplification of low-level signals, such as position and pressure sensors, strain gauges, and medical instrumentation.

The Analog Devices Inc. ADA4528-1 and ADA4528-2 Op Amps are offered in LFCSP8 and MSOP8 packages.

特性

  • Low offset voltage: 2.5μV maximum
  • Low offset voltage drift: 0.015μV/°C maximum
  • Low noise
    • 5.6nV/√Hz at f = 1kHz, AV = +100
    • 97nVp-p at f = 0.1Hz to 10Hz, AV= +100
  • Open-loop gain: 130dB minimum
  • CMRR: 135dB minimum
  • PSRR: 130dB minimum
  • Unity-gain crossover: 4MHz
  • Gain bandwidth product: 3MHz at AV = +100
  • -3dB closed-loop bandwidth: 6.2MHz
  • Single-supply operation: 2.2V to 5.5V
  • Dual-supply operation: ±1.1V to ±2.75V
  • Rail-to-rail input and output
  • Unity-gain stable

应用

  • Thermocouple/thermopile
  • Load cell and bridge transducers
  • Precision instrumentation
  • Electronic scales
  • Medical instrumentation
  • Handheld test equipment

资源

技术文章

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发布日期: 2015-09-10 | 更新日期: 2025-08-25