| 属性 | 数值 |
|---|---|
| Gain | 50 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 |
| Automotive Qualification | AEC-Q100 Grade 1 |
| Package Details | 8-TSSOP (PW) |
INA240A2QPWRQ1 is an eight-pin TSSOP automotive current-sense amplifier whose A2 gain option is fixed at 50 V/V rather than the 20-V/V A1 option.
That greater gain can use more of an ADC input range for a smaller shunt drop, but the designer must check output headroom against the expected peak current and 2.7-to-5.5-V supply.
A -4-to-80-V common-mode specification keeps the sense input usable through high-side operation and negative flyback events without moving the amplifier supply with the load.
PWM rejection reduces switching-edge interference at the output, which is particularly important when the 50-V/V gain would otherwise magnify disturbance in a motor-current feedback loop.
The Q1 grade, -40-to-125-degree-C ambient specification and PW package define the exact automotive option to qualify on the board.
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