具有输入电源的 2.7V 至 26V 高精度电流检测放大器
| Common mode voltage (Max) (V) | 26 |
| Common mode voltage (Min) (V) | 2.7 |
| Input offset (+/-) (Max) (uV) | 170 |
| Input offset drift (+/-) (Typ) (uV/C) | 0.5 |
| Gain (V/V) | 100, 200, 50 |
| Gain error (%) | 0.4 |
| Gain error drift (+/-) (Max) (ppm/°C) | 10 |
| CMRR (Min) (dB) | 100 |
| Bandwidth (kHz) | 80 |
| Supply voltage (Max) (V) | 26 |
| Supply voltage (Min) (V) | 2.7 |
| Iq (Max) (mA) | 0.14 |
| Number of channels (#) | 1 |
| Comparators (#) | 0 |
| Features | High precision, Input supply |
| Rating | Catalog |
| Operating temperature range (C) | -40 to 125 |
- Wide Common-Mode Range: 2.7 V to 26 V
- Offset Voltage: ±170 μV (Maximum) (Enables Shunt Drops of 10-mV Full-Scale)
- Accuracy:
- Gain Error ±0.4% (Maximum Over Temperature):
- 0.5-μV/°C Offset Drift (Maximum)
- 10-ppm/°C Gain Drift (Maximum)
- Choice of Gains:
- INA183A1: 50 V/V
- INA183A2: 100 V/V
- INA183A3: 200 V/V
- Quiescent Current: 130 μA (Maximum)
- Package: 5-Pin SOT-23
The INA183 is a high-precision voltage-output, current-shunt monitor (also called current-sense amplifier) commonly used for overcurrent protection, precision-current measurement for system optimization, or in closed-loop feedback circuits. This device can sense drops across shunt resistors at common-mode voltages from 2.7 V to 26 V. Three fixed gains are available: 50 V/V, 100 V/V, and 200 V/V. The low offset of the zero-drift architecture enables current sensing with maximum drops across the shunt as low as 10-mV full-scale.
This device operates by drawing power from the IN+ pin drawing a maximum of 130 μA of supply current. All versions are specified from –40 °C to 125 °C and are offered in the 5-pin SOT-23 package.
