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INA240A2QPWRQ1

Mfr. #:
INA240A2QPWRQ1
Mfr.:
Texas Instruments
Product Type:
Current Sense Amplifier
Series:
INA240-Q1
Package / Case:
8-TSSOP
Description:
Automotive 50-V/V current sense amplifier with enhanced PWM rejection in 8-pin TSSOP.

Product Attributes

AttributeValue
Gain50 V/V
Input Offset Voltage±25 µV maximum
Supply Voltage2.7 to 5.5 V
Common-Mode Voltage-4 to 80 V
Gain Error0.20% maximum
PWM RejectionEnhanced
Operating Ambient Temperature-40 to 125 °C
Automotive QualificationAEC-Q100 Grade 1
Package Details8-TSSOP (PW)

Product Details

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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