The OPA320-Q1 and OPA2320-Q1 (OPAx320-Q1) devices are a new generation of precision low-voltage CMOS operational amplifiers (op amps) optimized for very low noise and wide bandwidth. These devices operate on a low quiescent current of only 1.45 mA.
The OPAx320-Q1 are an excellent choice for low-power, single-supply applications. Low-noise (7 nV/√Hz) and high-speed operation also makes these devices an excellent choice for driving sampling analog-to-digital converters (ADCs). Other applications include signal conditioning and sensor amplification.
The OPAx320-Q1 feature a linear input stage with zero-crossover distortion that delivers excellent common-mode rejection ratio (CMRR) of 114 dB (typical) over the full input range. The input common-mode range extends 100 mV beyond the negative and positive supply rails. The output voltage typically swings within 10 mV of the rails.
In addition, the OPAx320-Q1 have a wide supply voltage range from 1.8 V to 5.5 V, with excellent PSRR (106 dB) over the entire supply range. These features make the OPAx320-Q1 suitable for precision, low-power applications that run directly from batteries without regulation.
The OPAx320-Q1 device is available in an 8-pin VSSOP (DGK) package.
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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)|
|Offset drift (Typ) (uV/C)|
|Iq per channel (Typ) (mA)|
|Vn at 1 kHz (Typ) (nV/rtHz)|
|CMRR (Typ) (dB)|
|Operating temperature range (C)|
|Package size: mm2:W x L (PKG)|
|Input bias current (Max) (pA)|
|Output current (Typ) (mA)|
|-40 to 125|
|SOT-23 | 5|
|5SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 5)|