Combined Voltage and Current Output Terminal for Analog Outputs (AO) in Industrial Applications

(ACTIVE) TIPD119

Description & Features

Technical Documents

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View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

Key Document

Description

This TI Verified Reference Design implements a combined voltage and current output terminal for analog outputs in industrial applications.  The DAC8760 combined with the OPA192 create a combined voltage and current output that allows for a single two-terminal output connector for both the voltage and current outputs.  The design features <0.1% total unadjusted error (TUE) for precision applications. The design is galvanically isolated from the backplane/host controller using the ISO7641FC digital isolator.

Features
  • Single Terminal, Standard Voltage or Current Output for a Universal Analog Output Module
  • 16-bit Resolution
  • <0.1% TUE (%FSR) 0 - 24 mA Current Output Precision
  • <0.1% TUE (%FSR) ±10 V Voltage Output Precision
  • 4kV Digital Galvanic Isolation using ISO7641FC

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  



Schematic/Block Diagram

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Design Files

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Bill of Materials (BOM)

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TI Devices (6)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
DAC7750  12-bit, single-channel, programmable current output DAC for 4-20mA current loop applications  Digital-to-analog converters (DACs)  Sample & Buy View Design Kits & Evaluation Modules
DAC7760  12-bit, single-channel, programmable current/voltage output DAC for 4-20mA current loop applications  Digital-to-analog converters (DACs)  Sample & Buy View Design Kits & Evaluation Modules
DAC8750  16-Bit Single-Channel Programmable Current Output DAC for 4-20mA Current-Loop Applications  Digital-to-analog converters (DACs)  Sample & Buy View Design Kits & Evaluation Modules
DAC8760  16-Bit Single-Channel Programmable Current/Voltage Output DAC for 4-20mA current loop applications  Digital-to-analog converters (DACs)  Sample & Buy View Design Kits & Evaluation Modules
ISO7641FC  4kVpk Low Power Quad Channel, 25Mbps Digital Isolator  Isolation  Sample & Buy View Design Kits & Evaluation Modules
OPA192  High-Voltage, Rail-to-Rail Input/Output, 5µV, 0.2µV/˚C, Precision Operational Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
DAC7750 Download
DAC7760 Download -
Download Download
DAC8750 Download
DAC8760 Download -
Download Download
ISO7641FC Download
OPA192 Download Download
Download
Download

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Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

Application notes (1)
Title Abstract Type Size (KB) Date
PDF 969 24 Jul 2014
User guides (1)
Title Abstract Type Size (KB) Date
PDF 992 08 Jan 2014
Design files (3)
Title Abstract Type Size (KB) Date
PDF 74 10 Jan 2014
PDF 110 10 Jan 2014
ZIP 729 10 Jan 2014
Related Tools & Software

Software (1)



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