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INA240 Current-Sense Amp
INA240
Texas Instrumentsic amplifier
The INA240 is a current-sense amplifier with enhanced PWM rejection, designed for precise current measurement over a wide common-mode range from -4V to 80V.
In stock
Specifications
8- Operating Voltage
- 2.7V to 5.5V
- Supply Current
- 2.4mA (maximum) (max)
- Interface
- Analog
- Resolution
- Not applicable
- Range
- -4V to 80V (common-mode) (cm range)
- Accuracy
- Gain error: ±0.20% (maximum), Offset voltage: ±25µV (maximum)
- Temperature Range
- -40°C to 125°C (operating range)
- Package
- 8-pin TSSOP or SOIC
Pinout
7| Pin | Name | Functions | Notes |
|---|---|---|---|
| IN± | Analog input (connect to load side of shunt resistor) | GPIO | Connect to the negative terminal of the shunt resistor. |
| IN+ | Analog input (connect to supply side of shunt resistor) | GPIO | Connect to the positive terminal of the shunt resistor. |
| OUT | Analog output | GPIO | Output voltage proportional to the current sensed by the shunt resistors. |
| GND | Analog ground | GND | Connect to system ground. |
| REF1, REF2 | Reference inputs | GPIO | Connect these pins to 0V to VS for adjusting the output midpoint. |
| VS | Power supply | POWER | Supply voltage range is 2.7V to 5.5V. |
| NC (1, 4) | No internal connection | — | Reserved for future use or can be connected to ground. |
Interactive pinout
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INA240
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