Combined Voltage/Current Output with Surge Protection Reference Design

(ACTIVE) TIDA-00559

Description & Features

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Key Document

Description

The TIDA-00559 TI Design provides a universal analog output (AO) for industrial sensors and transmitters. It is based on a 16-Bit DAC and uses a single output. This common output is user configurable for 0 to 10-V or for 4 to 20-mA. Usage in harsh industrial environment is addressed by a dedicated protection circuitry, designed to withstand differential mode surge pulses up to 1 kV / 40 Ω according to IEC61000-4-5. An isolated digital interface eases board configuration and evaluation.

Features
  • Analog Output Sensor Interface:
    - Based on 16-Bit DAC
  • Common Output Pin, Selectable as Voltage or Current Output:
    - 0 V - 10 V (plus 10% Overrange), min load ≥ 1 kΩ
    - 4 mA - 20 mA (0 mA – 24 mA),  max load ≤ 320 Ω
  • Designed to meet EN 61000-4-5:
    - ±1 kV,  40 Ω, 8/20μs, DM
  • Configuration and Evaluation Interface:
    - Isolated 4-wire SPI
  • Power Input: 15 V - 35 V
    - Reverse Polarity Protection

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Schematic/Block Diagram

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Design Guide

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Design Files

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TI Devices (4)

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Part Number Name Product Family Sample & Buy 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
OPA170  36V, microPower, Rail-to-Rail Output, General Purpose Op Amp in MicroPackages  Operational amplifiers (op amps)  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)
DAC8760 Download -
Download Download
ISO7641FC Download
OPA170 Download Download
Download Download
Download Download
TPS7A16 Download Download
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Technical Documents

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

User guides (1)
Title Abstract Type Size (KB) Date
PDF 19546 18 Nov 2016
Design files (9)
Title Abstract Type Size (KB) Date
PDF 1169 24 Mar 2016
ZIP 422 22 Mar 2016
PDF 331 22 Mar 2016
ZIP 925 22 Mar 2016
ZIP 881 22 Mar 2016
PDF 1110 22 Mar 2016
PDF 331 22 Mar 2016
PDF 72 22 Mar 2016
PDF 409 22 Mar 2016
Related Tools & Software

Reference Designs  ( 2 )

Design Kits & Evaluation Modules  ( 1 )

Name Part Number Tool Type
DAC8760 Enhanced Evaluation Module  DAC8760EMC-EVM  Evaluation Modules & Boards 

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