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TIDA-00648
4-20mA Current Loop Transmitter Reference Design
TIDA-00648
Overview
TIDA-00648 is an industry standard 4-20 mA current-loop transmitter. It allows injection of FSK-modulated digital data into the 4-20 mA current loop for HART communication. External protection circuitry is deployed in-place for compliance with regulatory IEC61000-4 standards such as EFT, ESD and surge requirements. EMC compliance to IEC61000-4 is necessary to ensure that the design not only survives but also performs as intended in the harsh/noisy industrial environment.
Features
- 4- to 20-mA current-loop output signal
- 16-bit resolution
- Loop-error detection and reporting
- Programmable output-current error levels
- Simple HART modulator interfacing
- Designed to meet IEC 61000 requirements
Industrial
- Capacitive Level Transmitter
- Capacitive pressure transmitter
- Coriolis Flow Transmitter
- Differential Pressure Flow Transmitter
- Electromagnetic (MID) flow transmitter
- Hydrometric Pressure Level Transmitter
- Impeller / Turbine Flow Transmitter
- Inductive & capacitive position sensor
- LVDT Position Sensor
- LVDT pressure transmitter
- Optical ToF continuous wave position sensor
- Optical ToF pulse position sensor
- Proximity switch
- Radar / microwave level transmitter
- Resistive pressure transmitter
- Silicon pressure transmitter
- Temperature transmitter
- Thermal Mass Flow Transmitter
- Ultrasonic flow transmitter
- Ultrasonic level transmitter
- Ultrasonic position sensor
- Vortex flow transmitter
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.
TIDUAM6.PDF (1159 K)
Reference design overview and verified performance test data
TIDRH13.PDF (553 K)
Detailed schematic diagram for design layout and components
TIDRH14.PDF (113 K)
Complete listing of design components, reference designators, and manufacturers/part numbers
TIDRH15.PDF (205 K)
Detailed overview of design layout for component placement
TIDRH17.ZIP (865 K)
Files used for 3D models or 2D drawings of IC components
TIDCAX6.ZIP (316 K)
Design file that contains information on physical board layer of design PCB
TIDRH16.PDF (1423 K)
PCB layer plot file used for generating PCB design layout
Products
Includes TI products in the design and potential alternatives.
Precision DACs (≤10 MSPS)
DAC161S997 — 16-Bit Precision DAC With Internal Reference and 4mA-to-20mA Current Loop Drive
Data sheet: PDF | HTMLMSP430 microcontrollers
MSP430F5172 — 25 MHz MCU with 32KB Flash, 2KB SRAM, 10-bit ADC, comparator, DMA, 16-bit High Resolution timer
Data sheet: PDF | HTMLStart development
Technical documentation
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| Type | Title | Date | ||
|---|---|---|---|---|
| * | Design guide | 4-mA to 20-mA Current Loop Transmitter Design Guide | Sep. 17, 2015 |
Related design resources
Reference designs
REFERENCE DESIGN
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