4- to 20-mA Loop-Powered RTD Temperature Transmitter Reference Design With MSP430 Smart Analog Combo TIDM-01000 (ACTIVE)

Description & Features

Technical Documents

Support & Training

Order Now


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

Key Document

Description

This TI reference design provides a low-component count, low-cost solution for 4- to 20-mA loop-powered, resistance-temperature detector (RTD), temperature transmitter. The design takes advantage of the on-chip Smart Analog Combo module in the MSP430FR2355 MCU to control the loop current, so  the standalone DAC is no longer required. This design achieves a 12-bit output resolution with an output current resolution of 6 µA. The design incorporates reverse-polarity protection as well as IEC61000-4-2 and IEC61000-4-4 protection on the loop-power input.

Features
  • Sensor Input Compatible with 2-, 3- or 4-Wire Resistance Temperature Detector (RTD) Probes
  • Temperature range for RTD of –200°C to 850°C
  • Maximum Measured Error: <1°C
  • IEC61000-4-2: ESD: Air Discharge: ±8 kV Class A
  • Small Form Factor (L × W): 60mm × 8mm
  • Operating Temperature Range -40°C to 105°C

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


  



Schematic/Block Diagram

Quickly understand overall system functionality.

Download Schematic

Design Guide

Get results faster with test and simulation data that's been verified.

Download Design Guide


TI Devices (4)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
ADS1120  16-bit, 2-kSPS, 4-ch, low-power, small-size delta-sigma ADC with PGA, VREF, 2x IDACs & SPI interface  Analog-to-digital converters (ADCs)  Sample & Buy View Design Kits & Evaluation Modules
MSP430FR2353  24MHz 105C ULP Microcontroller With 16 KB FRAM, 2 KB SRAM, 44 IO, 12-bit ADC, 12-bit DACs, OpAmp/PGA  MSP430 ultra-low-power MCUs  Not Available View Design Kits & Evaluation Modules
MSP430FR2355  24MHz 105C ULP Microcontroller With 32 KB FRAM, 4 KB SRAM, 44 IO, 12-bit ADC, 12-bit DACs, OpAmp/PGA  MSP430 ultra-low-power MCUs  Sample & Buy View Design Kits & Evaluation Modules
TPS7A16  60-V, 5-µA IQ, 100-mA low-dropout (LDO) voltage regulator with enable and power good  Power management  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
ADS1120 Download Download
Download Download
MSP430FR2353 Download
Download
Download
Download
MSP430FR2355 Download Download
Download Download
Download Download
Download Download
TPS7A16 Download Download
Download Download

Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.

Step 1: Download and install the free download.

Step 2: Download the Symbol and Footprint from the CAD.bxl file table.


Technical Documents

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

Datasheet (1)
Title Type Size (KB) Date
PDF 2859 05 Mar 2019
User guides (1)
Title Type Size (KB) Date
PDF 11116 21 May 2018
Design files (6)
Title Type Size (KB) Date
ZIP 323 21 May 2018
ZIP 490 21 May 2018
PDF 506 21 May 2018
PDF 107 21 May 2018
PDF 44 21 May 2018
PDF 193 21 May 2018
Related Tools & Software

Software (1)



Support & training

Search our extensive online knowledge base where millions of technical questions and answers are available 24/7.

Search answers from TI experts

Content is provided 'AS IS' by the respective TI and Community contributors and does not constitute TI specifications.
See terms of use.

If you have questions about quality, packaging, or ordering TI products visit our Support page.

Technical articles