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 range of
applications, including signal conditioning and sensor
amplification requiring high gains. Featuring low THD+N, the
OPAx322x series is also excellent for consumer audio applications,
particularly for single-supply systems.
The OPAx322S models include a shutdown mode that allow the
amplifiers to be switched from normal operation to a standby
current that is typically less than 0.1 µA.
The OPA322 (single version) is available in 5-pin SOT-23 and 6-pin
SOT-23, while the OPA2322 (dual version) is offered in 8-pin VSSOP,
10-pin VSSOP, 8-pin SOIC, and 8-pin SON packages. The quad version
OPA4322 comes in 14-pin TSSOP and 16-pin TSSOP packages. All
versions are specified for operation from –40°C to +125°C.
