The OPAx322-Q1 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 from 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 OPAx322-Q1 family ideal for a wide range of applications, including signal conditioning and sensor amplification requiring high gains. Featuring low THD+N, the OPAx322-Q1 family is also excellent for consumer audio applications, particularly for single-supply systems.
The OPA322-Q1 (single version) is available in 5-pin SOT-23 package, while the OPA2322-Q1 (dual version) is offered in a 8-pin VSSOP package. The OPA4322-Q1 (quad version) is available in a 14-pin TSSOP package. All versions are specified for operation from –40°C to +125°C.
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|Number of channels (#)|
|Total Supply Voltage (Min) (+5V=5, +/-5V=10)|
|Total Supply Voltage (Max) (+5V=5, +/-5V=10)|
|GBW (Typ) (MHz)|
|Slew Rate (Typ) (V/us)|
|Vos (offset voltage @ 25 C) (Max) (mV)|
|Iq per channel (Typ) (mA)|
|Vn at 1 kHz (Typ) (nV/rtHz)|
|Operating temperature range (C)|
|Package size: mm2:W x L (PKG)|
|Offset drift (Typ) (uV/C)|
|Input bias current (Max) (pA)|
|CMRR (Typ) (dB)|
|Output current (Typ) (mA)|
|-40 to 125||-40 to 125||-40 to 125|
|VSSOP | 8||SOT-23 | 5||TSSOP | 14|
|8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)||5SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 5)||14TSSOP: 32 mm2: 6.4 x 5 (TSSOP | 14)|
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