Part Number : AD8421

Function : 3 nV/√Hz, Low Power Instrumentation Amplifier

Package : SOIC, MSOP 8 Pin Type

Maker : Analog Devices

Pinouts :
AD8421 datasheet

Description :

The AD8421 is a low cost, low power, extremely low noise, ultra low bias current, high speed instrumentation amplifier that is ideally suited for a broad spectrum of signal conditioning and data acquisition applications. This product features extremely high CMRR, allowing it to extract low level signals in the presence of high frequency common-mode noise over a wide temperature
range. The 10 MHz bandwidth, 35 V/μs slew rate, and 0.6 μs settling time to 0.001% (G = 10) allow the AD8421 to amplify high speed signals and excel in applications that require high channel count, multiplexed systems. Even at higher gains, the current feedback architecture maintains high performance; for example, at G = 100, the bandwidth is 2 MHz and the settling time is 0.8 μs. The
IC has excellent distortion performance, making it suitable for use in demanding applications such as vibration analysis.


1. Low power
2. 2.3 mA maximum supply current
3. Low noise
4. High precision dc performance (AD8421BRZ)
5. 94 dB CMRR minimum (G = 1)
6. 500 pA maximum input bias current
7. Inputs protected to 40 V from opposite supply
8. Gain set with a single resistor (G = 1 to 10,000)


1. Medical instrumentation
2. Precision data acquisition
3. Microphone preamplification
4. Vibration analysis
5. Multiplexed input applications

Datasheet PDF Download :
AD8421 pdf

Others datasheet of same file :

AD8421ARMZ, AD8421ARMZ-R7, AD8421BRMZ,

2021/05/25 10:02 2021/05/25 10:02