GENERAL DESCRIPTION

The ADA4004-1/ADA4004-2/ADA4004-4 are 1.8 nV/√Hz precision amplifiers featuring 40 μV offset, 0.7 μV/°C drift, 12 MHz bandwidth, and low 1.7 mA per amplifier supply current.

The ADA4004-1/ADA4004-2/ADA4004-4 are designed on the high performance iPolar™ process, enabling improvements such as reduced noise and power consumption, increased speed and stability, and smaller footprint size. Novel design techniques enable the ADA4004-1/ADA4004-2/ADA4004-4 to achieve 1.8 nV/√Hz voltage noise density and a low 6 Hz 1/f noise corner frequency while consuming just 1.7 mA per amplifier. The small package saves board space, reduces cost, and improves layout flexibility.

FEATURES

  Very low voltage noise: 1.8 nV/√Hz

  Low input bias current: 90 nA maximum

  Offset voltage: 125 μV maximum

  High gain: 120 dB

  Wide bandwidth: 12 MHz

  ±5 V to ±15 V operation

APPLICATIONS

  Precision instrumentation

  Filter blocks

  Microphone preamplifiers

  Industrial control

  Thermocouples and RTDs

  Reference buffers