This reference design is a four channel-to-channel, isolated 4–20 mA, current-loop analog input module. The design includes a short circuit, overcurrent and overvoltage limit function for condition monitoring sensor and module applications. The major features of this analog input module design include channel isolation, a multi-channel analog input module powered up by a single flyback converter using LM5180, a power supply to 2-wire transmitter and short-circuit protection circuit. This design can also support a four-channel analog input module.
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
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Reference design overview and verified performance test data
Detailed schematic diagram for design layout and components
Complete listing of design components, reference designators, and manufacturers/part numbers
Detailed overview of design layout for component placement
Files used for 3D models or 2D drawings of IC components
Design file that contains information on physical board layer of design PCB
PCB layer plot file used for generating PCB design layout
Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Design guide | Channel-to-Channel Isolated Analog Input Module Reference Design | Apr. 04, 2019 | |
| More literature | Isolated Power Topologies for PLC I/O Modules and Other Low-Power Applications | PDF | HTML | Nov. 09, 2022 |
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