OPA322

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community 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...