The OPAx189 (OPA189 and OPA2189) series of high-precision operational amplifiers areultra-low noise, fast-settling, zero-drift devices that provide rail-to-rail output operation andfeature a unique MUX-friendly architecture and controlled start-up system. These features andexcellent ac performance, combined with only 0.4 µV of offset voltage and 0.005 µV/°Cof drift over temperature for the single-channel version, make the OPAx189 a great choice forprecision instrumentation, signal measurement, and active filtering applications. Moreover, theMUX-friendly input architecture prevents inrush current when applying large input differentialvoltages which improves settling performance in multi-channel systems, all while providing robustESD protection during shipment, handling, and assembly. All versions are specified from –40°C to+125°C.
Products containing the "OPA189" keyword are: OPA189ID , OPA189ID , OPA189IDBVR , OPA189IDBVT , OPA189IDGKR , OPA189IDGKR , OPA189IDGKT , OPA189IDGKT , OPA189IDRAll trademarks are the property of their respective owners.
| Status | ACTIVE |
| Number of channels | 1 |
| Total Supply Voltage | 4.5 |
| Vos (offset voltage @ 25 C) | 0.003 |
| GBW | 14 |
| Slew Rate | 20 |
| Rail-to-rail | In to V-^Out |
| Offset drift | 0.005 |
| Iq per channel | 1.3 |
| Vn at 1 kHz | 5.2 |
| CMRR | 168 |
| Rating | Catalog |
| Operating temperature range | -40 to 125 |
| Package Group | SOIC|8 |
| Approx. price | 0.96 | 1ku |
| Package size: mm2:W x L (PKG) | [pf]8SOIC[/pf]: 29 mm2: 6 x 4.9 (SOIC|8) |
| Input bias current | 300 |
| Output current | 65 |
| Features | EMI Hardened^High Cload Drive^Zero Drift |
| Architecture | CMOS |
| Input common mode headroom (to negative supply) | -0.1 |
| Input common mode headroom (to positive supply) | -2.5 |
| Output swing headroom (to negative supply) | 0.02 |
| Output swing headroom (to positive supply) | -0.02 |