0
ACTIVE
Number of channels |
2 |
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) |
5.5 |
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) |
1.8 |
Rail-to-rail |
In, Out |
GBW (typ) (MHz) |
20 |
Slew rate (typ) (V/µs) |
10 |
Vos (offset voltage at 25°C) (max) (mV) |
2 |
Iq per channel (typ) (mA) |
1.5 |
Vn at 1 kHz (typ) (nV√Hz) |
8.5 |
Rating |
Catalog |
Operating temperature range (°C) |
-40 to 125 |
Offset drift (typ) (µV/°C) |
1.8 |
Features |
Shutdown, Small Size, Zero Crossover |
Input bias current (max) (pA) |
10 |
CMRR (typ) (dB) |
100 |
Iout (typ) (A) |
0.065 |
Architecture |
CMOS |
Input common mode headroom (to negative supply) (typ) (V) |
-0.1 |
Input common mode headroom (to positive supply) (typ) (V) |
0.1 |
Output swing headroom (to negative supply) (typ) (V) |
0.01 |
Output swing headroom (to positive supply) (typ) (V) |
-0.01 |
SOIC (D)-8-29.4 mm² 4.9 x 6
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.
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