High-Speed, High-Side Current Sense Reference Design
TIDA-00976
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Key Document

Description

The TIDA-00976 TI Design is a high-speed current-to-voltage circuit. This design 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.

Features
  • Bandwidth > 15 MHz
  • Convert Current-to-Voltage
  • High-Side Voltage Range from 5 to 30 V
  • Flexible Output Common-Mode Voltage

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Schematic/Block Diagram

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Design Files

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TI Devices (3)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
REF5025  3 µVpp/V Noise, 3 ppm/°C Drift Precision Series Voltage Reference  Voltage references  Sample & Buy View Design Kits & Evaluation Modules
THS4131  Fully Differential Input/Output Low Noise Amplifier  Special function amplifiers  Sample & Buy View Design Kits & Evaluation Modules
TPS7A49  Wide VIN, 150-mA, ultra-low-noise, high-PSRR low-dropout (LDO) linear regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
REF5025 Download Download
Download Download
THS4131 Download Download
Download Download
Download Download
TPS7A49 Download Download
Download Download

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Technical Documents

See the Important Notice and Disclaimer covering reference designs and other TI resources.

Application notes (2)
Title Type Size (KB) Date
PDF 295 11 Mar 2005
PDF 173 25 Feb 2005
User guides (1)
Title Type Size (KB) Date
PDF 1179 19 Jul 2017
Design files (4)
Title Type Size (KB) Date
ZIP 1890 18 Jul 2017
PDF 376 18 Jul 2017
PDF 102 18 Jul 2017
PDF 171 18 Jul 2017

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