Texas Instruments' INA199 series of voltage output current shunt monitors can sense drops across shunts at common-mode voltages from –0.3 to 26 V, independent of the supply voltage. Three fixed gains are available: 50 V/V, 100 V/V, and 200 V/V. The low offset of the Zerø-Drift architecture enables current sensing with maximum drops across the shunt as low as 10 mV full-scale.
These devices operate from a single +2.7 to +26 V power supply, drawing a maximum of 100 µA of supply current. All versions are specified from –40°C to +105°C, and offered in both SC70 and thin QFN-10 packages.
- Wide common-mode range: -0.3 to 26 V
- ±1.5% gain error (max over temperature)
- 0.5 µV/°C offset drift (max)
- 10 ppm/°C gain drift (max)
- Offset voltage: ±150 µV (max), (enables shunt drops of 10 mV full-scale)
- Gain: 50 V/V
- Quiescent current: 100 µA (max)
- Packages: SC70, thin QFN-10