High-Speed, High-Side Current Sense Reference Design


Design files


This reference design is a high-speed current-to-voltage circuit. It is optimized for current-sense applications that require high-speed current measurements in the positive supply rail for voltages from 5 to 30 V. This design will reduce the common-mode voltage from 30 V and produce an output voltage centered at 2.5 V for sampling with an analog-to-digital converter (ADC). The output common mode can be easily changed by using different precision references.

  • Bandwidth > 15 MHz
  • Converts current-to-voltage
  • High-side voltage range from 5 to 30 V
  • Flexible output common-mode voltage
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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.

TIDUC40.PDF (1179 K)

Reference design overview and verified performance test data


Detailed schematic diagram for design layout and components


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

TIDCDN7.ZIP (1890 K)

Design file that contains information on physical board layer of design PCB


PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

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Technical documentation

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Type Title Date
* Design guide High-Speed, High-Side Current Sense Reference Design Jul. 19, 2017
Analog Design Journal Analysis of fully differential amplifiers Mar. 11, 2005
Analog Design Journal Op amp stability and input capacitance Feb. 25, 2005

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