AD8421 PDF Datasheet
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Description
This is Low Power Instrumentation Amplifier. Data Sheet
FEATURES
Low power 2.3 mA maximum supply current
Low noise 3.2 nV, √H- maximum input voltage noise at 1 kH- 200 fA, √H- current noise at 1 kHz
Excellent ac specifications 10 MH- bandwidth (G = 1) 2 MH- bandwidth (G = 100) 0.6 μs settling time to 0.001% (G = 10) 80 dB CMRR at 20 kH- (G = 1) 35 V, μs slew rate
High precision dc performance (AD8421BRZ) 94 dB CMRR minimum (G = 1) 0.2 μV, °C maximum input offset voltage drift 1 ppm, °C maximum gain drift (G = 1) 500 pA maximum input bias current
Inputs protected to 40 V from opposite supply ±2.5 V to ±18 V dual supply (5 V to 36 V single supply) Gain set with a single resistor (G = 1 to 10,000)
APPLICATIONS
Medical instrumentation Precision data acquisition Microphone preamplification Vibration analysis Multiplexed input applications ADC driver
GENERAL DESCRIPTION
The AD8421 is a low cost, low power, extremely low noise, ultralow bias current, high speed instrumentation amplifier that is ideally suited for a broad spectrum of sig.