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TIPD158
Loop-powered 4-mA to 20-mA transmitter EMC and EMI-tested reference design
TIPD158
Overview
This certified reference design implements a 12-bit loop-powered, or 2-wire, transmitter using DAC7311, OPA317 and TL431B. The design includes a protection circuit that provides immunity to the IEC61000-4 test suite. The design also includes a circuit to rectify a reverse polarity supply voltage. The protection circuit and rectifier do not negatively affect the current output performance, resulting in <0.2% total unadjusted error (TUE).
This design is applicable for industrial automation and process control applications requiring a low-cost solution for two-wire data transmission.
Features
- 12-bit, loop-powered 4-20mA, transmitter
- 10-36 V Loop Supply Voltage
- <0.2% total unadjusted error (TUE)
- <0.04% calibrated error
- Low Cost Design
- Verified to pass IEC61000-4-2/3/4/6 tests
- Functional with reverse polarity supply connection
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
Design files & products
Design files
Download ready-to-use system files to speed your design process.
TIDC383A.ZIP (2604 K)
Detailed schematic diagram for design layout and components
TIDRB04.PDF (132 K)
Detailed schematic diagram for design layout and components
TIDRB05.PDF (79 K)
Complete listing of design components, reference designators, and manufacturers/part numbers
Products
Includes TI products in the design and potential alternatives.
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Technical documentation
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| Type | Title | Date | ||
|---|---|---|---|---|
| * | User guide | Low-Cost Loop-Powered 4-mA to 20-mA Transmitter EMC/EMI Tested Design Guide | Apr. 23, 2014 |
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