The OPA140, OPA2140, and OPA4140 op amp family is a series of low-power JFET input amplifiers that feature good drift and low input bias current. The rail-to-rail output swing and input range that includes V– allow designers to take advantage of the low-noise characteristics of JFET amplifiers while also interfacing to modern, single-supply, precision analog-to-digital converters (ADCs) and digital-to-analog converters (DACs).
The OPA140 achieves 11MHz unity-gain bandwidth and 20V/µs slew rate while consuming only 1.8mA (typ) of quiescent current. It runs on a single 4.5 to 36V supply or dual ±2.25V to ±18V supplies.
All versions are fully specified from –40°C to +125°C for use in the most challenging environments. The OPA140 (single) is available in the SOT23-5, MSOP-8, and SO-8 packages; the OPA2140 (dual) is available in both MSOP-8 and SO-8 packages; and the OPA4140 (quad) is available in the SO-14 and TSSOP-14 packages.
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|Number of Channels (#)|
|Total Supply Voltage (Min) (+5V=5, +/-5V=10)|
|Total Supply Voltage (Max) (+5V=5, +/-5V=10)|
|Iq per channel (Max) (mA)|
|Slew Rate (Typ) (V/us)|
|Vos (Offset Voltage @ 25C) (Max) (mV)|
|Offset Drift (Typ) (uV/C)|
|CMRR (Min) (dB)|
|GBW (Typ) (MHz)|
|IIB (Max) (pA)|
|Io (Typ) (mA)|
|Vn at 1kHz (Typ) (nV/rtHz)|
|Operating Temperature Range (C)|
|Approx. Price (US$)|
|-40 to 125||-40 to 125||-40 to 125|
| 8SOIC |
| 8SOIC |
| 14SOIC |
|2.70 | 1ku||1.55 | 1ku||4.75 | 1ku|