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