| 属性 | 数值 |
|---|---|
| Gain | 20 V/V |
| Input Offset Voltage | ±25 µV maximum |
| Supply Voltage | 2.7 to 5.5 V |
| Common-Mode Voltage | -4 to 80 V |
| Gain Error | 0.20% maximum |
| PWM Rejection | Enhanced |
| Operating Ambient Temperature | -40 to 125 °C |
| Package Details | 8-SOIC (D) |
INA240A1DR is a Texas Instruments 20-V/V bidirectional current-sense amplifier in an eight-pin SOIC package for measuring the voltage across a shunt resistor.
Its -4-to-80-V common-mode range permits the shunt to sit on a high-voltage rail and also tolerate brief below-ground excursions, which matter during motor or solenoid flyback.
Enhanced PWM rejection suppresses common-mode switching transients before they appear as output ripple, so a controller can sample phase current while the load is being pulse-width modulated.
A maximum 25-microvolt input offset and 0.20-percent gain error reduce measurement uncertainty when the useful shunt drop is small rather than forcing a larger, hotter resistor.
The 2.7-to-5.5-V supply range and -40-to-125-degree-C ambient specification set the interface and temperature limits for the analog measurement path.
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