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