AD8421ARMZ-R7 Description

The AD8421ARMZ-R7 is a low-cost, low power, extremely low noise, ultralow bias current, and high-speed instrumentation amplifier ideally suited for a broad spectrum of signal conditioning and data acquisition applications. 

AD8421ARMZ-R7 Features

• Low power

  -2.3 mA maximum supply current

• Low noise

  -3.2 nV/√Hz maximum input voltage noise at 1 kHz

  -200 fA/√Hz current noise at 1 kHz

• Excellent ac specifications

  -10 MHz bandwidth (G = 1)

  -2 MHz bandwidth (G = 100)

  -0.6 μs settling time to 0.001% (G = 10)

  -80 dB CMRR at 20 kHz (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) 

AD8421ARMZ-R7 Applicaitons

• Medical instrumentation

• Precision data acquisition

• Microphone preamplification

• Vibration analysis

• Multiplexed input applications

• ADC driver