The OPA145 operational amplifier (op amp) is a low-power JFET input amplifier that features excellent drift, low current noise, and pico-ampere input bias current, making this device a suitable choice for amplifying small signals 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 management and take advantage of the single-supply, low-noise JFET architecture.
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| Number of Channels (#) |
| Total Supply Voltage (Min) (+5V=5, +/-5V=10) |
| Total Supply Voltage (Max) (+5V=5, +/-5V=10) |
| GBW (Typ) (MHz) |
| Slew Rate (Typ) (V/us) |
| Rail-to-Rail |
| Vos (Offset Voltage @ 25C) (Max) (mV) |
| Offset Drift (Typ) (uV/C) |
| Iq per channel (Typ) (mA) |
| Vn at 1kHz (Typ) (nV/rtHz) |
| CMRR (Typ) (dB) |
| Rating |
| Operating Temperature Range (C) |
| Package Group |
| Package Size: mm2:W x L (PKG) |
| Input Bias Current (Max) (pA) |
| Output Current (Typ) (mA) |
| Features |
| Architecture |
| OPA145 | OPA140 | OPA141 |
|---|---|---|
| 1 | 1 | 1 |
| 4.5 | 4.5 | 4.5 |
| 36 | 36 | 36 |
| 5.5 | 11 | 10 |
| 20 | 20 | 20 |
| In to V- Out | In to V- Out | In to V- Out |
| 0.15 | 0.12 | 3.5 |
| 0.4 | 0.35 | 2 |
| 0.445 | 1.8 | 1.8 |
| 7 | 5.1 | 6.5 |
| 140 | 140 | 126 |
| Catalog | Catalog | Catalog |
| -40 to 125 | -40 to 125 | -40 to 125 |
| SOIC | SOIC SOT-23 VSSOP | SOIC VSSOP |
| 8SOIC: 29 mm2: 6 x 4.9(SOIC) | 8SOIC: 29 mm2: 6 x 4.9(SOIC) 5SOT-23: 8 mm2: 2.8 x 2.9(SOT-23) 8VSSOP: 15 mm2: 4.9 x 3(VSSOP) | 8SOIC: 29 mm2: 6 x 4.9(SOIC) 8VSSOP: 15 mm2: 4.9 x 3(VSSOP) |
| 10 | 10 | 20 |
| 20 | 30 | 30 |
| N/A | N/A | N/A |
| FET | FET | FET |
| Order Now | Order Now | Order Now |
