The OPA314 family of single-, dual-, and quad-channel operational amplifiers represents a new generation of low-power, general-purpose CMOS amplifiers. Rail-to-rail input and output swings, low quiescent current (150 µA typically at 5 VS) combined with a wide bandwidth of 3 MHz, and very low noise (14 nV/√Hz at 1 kHz) make this family very attractive for a variety of battery-powered applications that require a good balance between cost and performance. The low input bias current supports applications with MΩ source impedances.
The robust design of the OPA314 devices provides ease-of-use to the circuit designer: unity-gain stability with capacitive loads of up to 300 pF, an integrated RF/EMI rejection filter, no phase reversal in overdrive conditions, and high electrostatic discharge (ESD) protection (4-kV HBM).
These devices are optimized for low-voltage operation as low as 1.8 V (±0.9 V) and up to 5.5 V (±2.75 V), and are specified over the full extended temperature range of –40°C to 125°C.
The OPA314 (single) is available in both SC70-5 and SOT23-5 packages. The OPA2314 (dual) is offered in SO-8, MSOP-8, and DFN-8 packages. The quad-channel OPA4314 is offered in a TSSOP-14 package.
|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 @ 25C) (Max) (mV)|
|Iq per channel (Typ) (mA)|
|Vn at 1kHz (Typ) (nV/rtHz)|
|CMRR (Typ) (dB)|
|Operating Temperature Range (C)|
|Approx. Price (US$)|
|Offset Drift (Typ) (uV/C)|
|Package Size (mm2=WxL)|
|IIB (Max) (pA)|
|Output Current (Typ) (mA)|
| In |
| In |
| In |
|-40 to 125||-40 to 125||-40 to 125|
| SC70 |
| SOIC |
|0.30 | 1ku||0.45 | 1ku||0.65 | 1ku|
| 5SC70: 4 mm2: 2.1 x 2 |
5SOT-23: 8 mm2: 2.8 x 2.9
| 8SON: 9 mm2: 3 x 3 |
8VSSOP: 15 mm2: 4.9 x 3
8SOIC: 29 mm2: 6 x 4.9
|14TSSOP: 32 mm2: 6.4 x 5|
|Sample & Buy||Sample & Buy||Sample & Buy|