±50A Current Sensor using Closed-Loop Compensated Hall Element Reference Design


Design files


This TI Precision Verified Design provides a complete closed loop Hall based current transducer signal conditioning solution.  The circuit features the DRV411 and is designed to accurately measure dc, ac and pulsed currents to +/-50 A with galvanic isolation between the primary and secondary circuits.  The DRV411 provides Hall excitation, a compensation coil driver and a precision difference amplifier in a single package.  The unique current spinning technology employed on the DRV411 virtually eliminates the offset and 1/f noise of the Hall device and enables accurate, galvanically isolated, high-current, measurements in applications such as industrial motor control, energy, and HEV.

  • TI Precision Designs: Verified Design
  • Includes theory, component selection, TINA-TI simulation, PCB schematic & layout, bill of materials, and measured results
  • Measures dc, ac and pulsed currents to +/-50 A
  • Single 5 V supply
  • Galvanic Isolation between primary and secondary circuits

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDC822.ZIP (346 K)

Detailed schematic diagram for design layout and components

TIDRC74.PDF (144 K)

Detailed schematic diagram for design layout and components

TIDRC75.PDF (193 K)

Complete listing of design components, reference designators, and manufacturers/part numbers


Includes TI products in the design and potential alternatives.

Signal conditioners

DRV411Hall-Effect Magnetic Sensor Signal Conditioning IC for Closed-Loop Applications

Data sheet document-pdfAcrobat PDF

Technical documentation

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Type Title Date
* User guide +/-50-A Current Sensor Using Closed-Loop Compensated Hall Element Dec. 08, 2014
Technical article Current sensors and the bi-polar swing Apr. 10, 2015
Technical article Make sense of an uncommon reference Mar. 06, 2015

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