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INA240A1QDRQ1

Mfr. #:
INA240A1QDRQ1
Mfr.:
Texas Instruments
Product Type:
Current Sense Amplifier
Series:
INA240-Q1
Package / Case:
8-SOIC
Description:
Automotive 20-V/V current sense amplifier with enhanced PWM rejection in 8-pin SOIC.

Product Attributes

AttributeValue
Gain20 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-SOIC (D)

Product Details

INA240A1QDRQ1 is the automotive-qualified, 20-V/V INA240 current-sense amplifier supplied in an eight-pin SOIC package with a -40-to-125-degree-C ambient rating.

The device measures bidirectional shunt current even while its input common mode moves from -4 to 80 V, giving a motor controller room for high-side rails and inductive undershoot.

Rejection of fast PWM common-mode edges keeps the output from being dominated by switching artifacts, so current feedback remains useful during active drive rather than only between pulses.

The fixed gain and maximum 0.20-percent gain error make the shunt value and ADC full-scale range calculable, while a maximum 25-microvolt offset supports smaller sense voltages.

Its AEC-Q100 Grade 1 qualification is tied to this Q1 ordering variant and should be retained when an automotive bill of materials is specified.

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