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OPA322, OPA322S OPA2322, OPA23...
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OPA322, OPA322S OPA2322, OPA2322S OPA4322, OPA4322S
SBOS538F – JANUARY 2011 – REVISED DECEMBER 2016
OPAx322x 20-MHz, Low-Noise, 1.8-V, RRI/O,
CMOS Operational Amplifier With Shutdown
1 Features
1 Gain Bandwidth: 20 MHz Low Noise: 8.5 nV√Hz at 1 kHz Slew Rate: 10 V/μs Low THD+N: 0.0005% Rail-to-Rail I/O Offset
Voltage: 2 mV (maximum) Supply
Voltage: 1.8 V to 5.5 V Supply Current: 1.5 mA/ch
– Shutdown: 0.1 μA/ch Unity-Gain Stable Small Packages:
– SOT-23, SON, VSSOP, TSSOP
2 Applications
Sensor Signal Conditioning Consumer Audio Multi-Pole Active Filters Control-Loop
Amplifiers Communications Security Scanners
Offset
Voltage (mV)
Zero-Crossover Rail-to-Rail Input Stage Eliminates Distortion
1 0.8 0.6 0.4 0.2
0 -0.2 -0.4 -0.6 -0.8
-1 -3
Representative Units VS = ±2.75 V
-2 -1 0
1
Common-Mode
Voltage (V)
2
3
3 Description
The OPAx322x series consists of single, dual, and quad-channel
CMOS operational
amplifiers featuring low noise and rail-to-rail inputs and outputs optimized for low-power, single-supply applications. Specified over a wide supply range of 1.8 V to 5.5 V, the low quiescent current of only 1.5 mA per channel makes these devices well-suited for power-sensitive applications.
The combination of very low noise (8.5 nV√Hz at 1 kHz), high-gain bandwidth (20 MHz), and fast slew rate (10 V/μs) make the OPAx322x family ideal for a wide ra...