Single-Chip, loop-powered 4-20mA RTD Sensor Transmitter Reference Design
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Key Document


The TIDA-00851 reference design is a single-chip solution for a 2-wire, 4-20mA loop-powered system including a 4-wire RTD analog front-end. The built-in processor enables the usage of compensation algorithms, increasing the system performance. The design is ideally suited for space constraints applications and operates at high ambient temperatures with low power performance.

  • 4-wire RTD Sensors (PT100)
  • Loop-power 4-20mA current interface
  • Ambient Temperature: -40ºC to +150ºC
  • Designed to meet: IEC 61000-4-2, IEC 61000-4-4 and IEC 61000-4-5 specifications

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Schematic/Block Diagram

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Design Files

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TI Devices (1)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
PGA900  Programmable resistive sensing conditioner with digital and analog outputs  Specialty sensors  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
PGA900 Download Download
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Technical Documents

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Application notes (5)
Title Type Size (KB) Date
PDF 1153 23 May 2019
PDF 1957 24 Oct 2016
PDF 647 26 Apr 2016
PDF 240 24 Jul 2015
PDF 238 07 May 2015
User guides (1)
Title Type Size (KB) Date
PDF 2516 07 Dec 2015
White papers (2)
Title Type Size (KB) Date
Multiple Files   10 Apr 2019
PDF 1774 02 Nov 2016
Design files (6)
Title Type Size (KB) Date
ZIP 378 09 Dec 2015
ZIP 426 09 Dec 2015
PDF 676 09 Dec 2015
PDF 127 09 Dec 2015
PDF 85 09 Dec 2015
PDF 510 09 Dec 2015
Related Tools & Software

Reference Designs  ( 1 )

Name Part Number Tool Type
Isolated Loop Powered Thermocouple Transmitter Reference Design  TIDA-00189  TI Designs

Software (1)

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