Texas Instruments OPA705UA, CMOS op-amp, single circuit, 1 MHz gain bandwidth, 0.6 V/µs slew rate, rail-to-rail output, 160 µA supply, 1 pA input bias, 8-SOIC package, -55°C to 125°C.
| Parameter | Value |
|---|---|
| Output type | Rail-to-Rail |
| Mounting | Surface Mount |
| Amplifier type | CMOS |
| Voltage - input offset | 500 µV |
| Voltage - supply span | 12 V |
| Current - supply | 160µA |
| Current - input bias | 1 pA |
| Current - output (Channel) | 10 mA |
| Operating temperature | -55°C ~ 125°C |
| Gain bandwidth product | 1 MHz |
| Package | Bulk |
| Slew rate | 0.6V/µs |
| Case | 8-SOIC (0.154\", 3.90mm Width) |
| Number of circuits | 1 |
The rail-to-rail output stage maximizes dynamic range at low supply voltages, and the 1 pA input bias current suits high-impedance sources like photodiodes or pH electrodes without adding offset error.
The wide temperature span also provides margin for sealed enclosures or near-engine-bay locations in ground vehicles.
Operates from a 4 V to 12 V supply span, so it works with common 5 V and 12 V rails.
No, the OPA705UA is listed as active by Texas Instruments.
A close functional alternative is the OPA4374AIPWT, a quad CMOS op-amp with 6.5 MHz GBW and 5 V/µs slew rate, also rail-to-rail, but in a different package and with four channels. For a single-channel alternative, the TLV9351IDCKR offers 3.5 MHz GBW and 20 V/µs slew rate in a smaller package. Neither is pin-compatible with the OPA705UA's 8-SOIC footprint.