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INA181 Current-Sense Amp
INA181
Texas Instrumentsic amplifier
INA181 is a single-channel current-sense amplifier with bidirectional sensing capability, operating from 2.7V to 5.5V supply voltage.
In stock
Specifications
8- Operating Voltage
- 2.7 V to 5.5 V
- Supply Current
- 260 µA maximum (INA181) µA
- Interface
- Analog
- Resolution
- Not specified
- Range
- -0.2 V to +26 V (common-mode input voltage) V
- Accuracy
- ±1% gain error, 1-µV/°C offset drift
- Temperature Range
- -40°C to +125°C °C
- Package
- 6-pin SOT-23, 6-pin SC70 (for single-channel)
Pinout
6| Pin | Name | Functions | Notes |
|---|---|---|---|
| GND | Analog Ground | GPIO | Analog ground for IN+ and IN– |
| IN+ | Current-sense amplifier positive input | GPIO | For high-side applications, connect to bus-voltage side of sense resistor; For low-side applications, connect to load side of sense resistor |
| IN– | Current-sense amplifier negative input | GPIO | For high-side applications, connect to load side of sense resistor; For low-side applications, connect to ground side of sense resistor |
| OUT | Analog output | GPIO | Output voltage proportional to the current sensed by IN+ and IN– |
| REF | Analog input | GPIO | Reference input, 0 to VS |
| VS | Power supply | POWER | Supply voltage, 2.7V to 5.5V |
Interactive pinout
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INA181
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