The OPA340 rail-to-rail CMOS operational amplifier is optimized for low-voltage, single-supply operation. Rail-to-rail input/output and high-speed operation make it ideal for driving sampling analog-to-digital (A/D) converters. The OPA340 is also well-suited for general purpose and audio applications as well as providing current/voltage conversion at the output of digital-to-analog (D/A) converters.
The OPA340 operates on a single supply as low as 2.7 V with an input common-mode voltage range that extends 500 mV below ground and 500 mV above the positive supply. Output voltage swing is to within 1 mV of the supply rails with a 100-kΩ load. It offers excellent dynamic response (BW = 5.5 MHz, SR = 6 V/µs), yet quiescent current is only 750 µA.
The surface mount package options are SOIC-8 or SOT23-5. Both are specified from –55°C to 125°C. A SPICE macromodel is available for design analysis.
| Status | ACTIVE |
| Number of channels | 1 |
| Total Supply Voltage | 2.7 |
| Vos (offset voltage @ 25 C) | 0.5 |
| GBW | 5.5 |
| Slew Rate | 6 |
| Rail-to-rail | In to V-^Out |
| Offset drift | 2.5 |
| Iq per channel | 0.75 |
| Vn at 1 kHz | 25 |
| CMRR | 92 |
| Rating | HiRel Enhanced Product |
| Operating temperature range | -55 to 125 |
| Package Group | SOT-23|5 |
| Approx. price | 2.05 | 1ku |
| Package size: mm2:W x L (PKG) | [pf]5SOT-23[/pf]: 8 mm2: 2.8 x 2.9 (SOT-23|5) |
| Input bias current | 10 |
| Output current | 50 |
| Features | N/A |
| Architecture | CMOS |
| Input common mode headroom (to negative supply) | -0.3 |
| Input common mode headroom (to positive supply) | 0.3 |
| Output swing headroom (to negative supply) | 0.01 |
| Output swing headroom (to positive supply) | -0.01 |