INA241B1IDDFR AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

INA241B1IDDFR product

INA241B1IDDFR

Instrumentation

bidirectional current sense10 V/V gain110 V common modePWM rejectionSOT-23-8

INA241B1IDDFR is a 10 V/V bidirectional current-sense amplifier for shunt measurements with input common-mode voltages from -5 V to 110 V. Its PWM-rejection feature targets switching motor and actuator systems.

Best for

  • High-side, inline, or low-side shunt current sensing
  • PWM motor, solenoid, and actuator drive circuits
  • Applications requiring a 10 V/V fixed-gain analog current output

Avoid if

  • The required output voltage exceeds the 2.7 V to 20 V supply-bound output range
  • Offset error from ±150 µV is unacceptable for the selected shunt voltage

Check before use

  • Verify shunt resistor power rating at maximum current
  • Use Kelvin connections from the shunt to IN+ and IN-
  • Place a 0.1 µF bypass capacitor close to VS and GND
  • Confirm the output reference configuration for unidirectional or bidirectional measurement

Key specifications

Gain
10 V/V
Common-mode input range
-5 V to 110 V
Supply range
2.7 V to 20 V
Input offset voltage
±150 µV maximum
Bandwidth
1.1 MHz
PWM switching support
Up to 125 kHz

Compliance & Environment

RoHS
RoHS & Green
REACH
-
MSL
Level-1-260C-UNLIM
ECCN
-
HTSUS
-

Application

Motor drivesSolenoids and actuatorsCordless power toolsDrone propeller speed control

Datasheet

CAD Models

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Alternative components

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Design and risk insights

Questions & answers

INA241B1IDDFR is an 8-pin SOT-23-THIN Texas Instruments INA241B1 bidirectional current-sense amplifier. It has a fixed gain of 10 V/V and measures the differential voltage across an external shunt resistor.