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INA190 Precision Current-Sense Amp
INA190
Texas Instrumentsic amplifier
INA190 is a precision current-sense amplifier used for overcurrent protection and system optimization, with low input bias currents and wide common-mode voltage range.
In stock
Specifications
8- Operating Voltage
- 1.7 V to 5.5 V
- Supply Current
- 65 µA (max)
- Interface
- Analog
- Resolution
- 0.5 nA (typ)
- Range
- -0.2 V to +40 V
- Accuracy
- ±15 µV (max) for offset voltage, 7 ppm/°C (max) for gain drift
- Temperature Range
- -40°C to +125°C
- Package
- SC70, SOT-23, UQFN
Pinout
8| Pin | Name | Functions | Notes |
|---|---|---|---|
| ENABLE | Enable pin | GPIO | When driven to VS, the device functions as a current sense amplifier; when driven to GND, it is off and supply current reduced. |
| GND | Analog Ground | GND | |
| IN+ | Current-sense amplifier positive input | GPIO | For low-side applications, connect to load side of sense resistor. |
| IN± | Current-sense amplifier negative input | GPIO | For high-side applications, connect to bus voltage side of sense resistor; for low-side applications, connect to ground side of sense resistor. |
| NC | Not internally connected | GPIO | Either float these pins or connect to any voltage between GND and VS. |
| OUT | Analog output | ADC | |
| REF | Reference input | GPIO | Enables bidirectional current sensing with an externally applied voltage. |
| VS | Analog Power supply, 1.7 V to 5.5 V | POWER |
Interactive pinout
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INA190
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