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