TIDA-010048 Reference Design

Texas Instruments

Channel-to-channel isolated analog input module reference design

Description

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 include channel isolation: a multi-channel analog input module powered up by a single flyback converter using LM5180 device: a power supply to 2-wire transmitter and short-circuit protection circuit. This design can also support a four-channel analog input module.

Features
  • 1 to 4 channel-to-channel isolated analog input moduleSupply for field transmitters with output power limitation (short limited to 25mA)Transmitter supply: 25 ±1V: IOUT Input protected against miswiringUART interface 24b ΔΣADC to reduce BOM size and cost
Applications
  • Analog input module
  • Flight control unit
  • Laser distance meter
  • DC analog input/output module
  • Condition monitoring module
  • Condition monitoring sensor
Product Categories
  • Power management