The OPA145 operational amplifier (opamp) is a low-power JFET input amplifier thathas excellent drift, low current noise, and pico-ampere input bias current, makingthis device a suitable choice for amplifying smallsignals from high-impedance sensors. The rail-to-rail output swing interfaces to modern,single-supply, precision analog-to-digital converters (ADCs) and digital-to-analog converters(DACs). In addition, the input range that includes V– allows designers to simplify power managementand take advantage of the single-supply, low-noise JFET architecture.
Products containing the "OPA145" keyword are: OPA145ID , OPA145ID , OPA145IDBVR , OPA145IDBVR , OPA145IDBVT , OPA145IDBVT , OPA145IDGKR , OPA145IDGKR , OPA145IDGKT , OPA145IDGKT , OPA145IDR , OPA145IDRAll trademarks are the property of their respective owners.
| Status | ACTIVE |
| Number of channels | 1 |
| Total Supply Voltage | 4.5 |
| Vos (offset voltage @ 25 C) | 0.15 |
| GBW | 5.5 |
| Slew Rate | 20 |
| Rail-to-rail | In to V-^Out |
| Offset drift | 0.4 |
| Iq per channel | 0.445 |
| Vn at 1 kHz | 7 |
| CMRR | 140 |
| Rating | Catalog |
| Operating temperature range | -40 to 125 |
| Package Group | SOIC|8 |
| Approx. price | 0.99 | 1ku |
| Package size: mm2:W x L (PKG) | [pf]8SOIC[/pf]: 29 mm2: 6 x 4.9 (SOIC|8) |
| Input bias current | 10 |
| Output current | 20 |
| Features | N/A |
| Architecture | FET |
| Input common mode headroom (to negative supply) | -0.1 |
| Input common mode headroom (to positive supply) | -3.5 |
| Output swing headroom (to negative supply) | 0.1 |
| Output swing headroom (to positive supply) | -0.1 |