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INA821 - Precision Instrumentation Amplifier

Description

The INA821 is a high-precision instrumentation amplifier that offers low power consumption and operates over a wide single-supply or dual-supply range.

A single external resistor sets any gain from 1 to 10,000.

Features

  • 1 Low offset voltage: 10 µV (typ), 35 µV (max).
  • Gain drift: 5 ppm/°C (G = 1), 35 ppm/°C (G > 1) (max).
  • Noise: 7 nV/√Hz.
  • Bandwidth: 4.7 MHz (G = 1), 290 kHz (G = 100).
  • Stable with 1-nF capacitive loads.
  • Inputs protected up to ±40 V.
  • Common-mode rejection: 112 dB, G = 10 (min).
  • Power supply rejection: 110 dB, G = 1 (min).
  • Supply current: 650 µA (max).
  • Supply range:.
  • Single-supply: 4.5 V to 36 V.

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Full PDF Text Transcription

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Product Folder Order Now Technical Documents Tools & Software Support & Community INA821 SBOS893D – AUGUST 2018 – REVISED JUNE 2020 INA821 35-µV Offset, 7-nV/√Hz Noise, Low-Power, Precision Instrumentation Amplifier 1 Features •1 Low offset voltage: 10 µV (typ), 35 µV (max) • Gain drift: 5 ppm/°C (G = 1), 35 ppm/°C (G > 1) (max) • Noise: 7 nV/√Hz • Bandwidth: 4.7 MHz (G = 1), 290 kHz (G = 100) • Stable with 1-nF capacitive loads • Inputs protected up to ±40 V • Common-mode rejection: 112 dB, G = 10 (min) • Power supply rejection: 110 dB, G = 1 (min) • Supply current: 650 µA (max) • Supply range: – Single-supply: 4.5 V to 36 V – Dual-supply: ±2.
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