ADA4004-2ARMZ-R7 Audio Power Amplifier IC Precision Amplifiers
1.8nV/Hz 36V Prec Dual
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
APPLICATIONS
- Precision instrumentation
- Filter blocks
- Microphone preamplifiers
- Industrial control
- Thermocouples and RTDs
- Reference buffers
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 iPolarTM 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.
Applications for these amplifiers include high precision controls,
PLL filters, high performance precision filters, medical and
analytical instrumentation, precision power supply controls, ATE,
and data acquisition systems. Operation is fully specified from ±5
V to ±15 V from −40°C to +125°C.
The ADA4004-1, ADA4004-2, and ADA4004-4 are members of a growing
series of low noise op amps offered by Analog Devices, Inc., (see
Table 1).
