Multifunction relay

Products and reference designs

Multifunction relay

Block diagram


Our integrated circuits and reference designs help you design multifunction relays with protection, monitoring and diagnostic features integrating data acquisition, signal processing, protection algorithms, high- or low-speed communication, isolation and human machine interface (HMI) functionalities.

Design requirements

Innovative and highly-integrated multifunction relay designs often require:

  • Accurate measurement of alternating current (AC) and voltage inputs over a wide range.
  • Communication interfaces, including Ethernet copper/fiber 10/100/1000, USB and RS-485.
  • Efficient direct current (DC) supply using DC/DC converters with an integrated inductor and onboard power management.
  • HMI solutions for LCDs for graphic display and LEDs for diagnostics and status indication.

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Block diagram

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Technical documentation

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Application note Digital Filter Types in Delta-Sigma ADCs PDF | HTML 29 Jun 2018
Application note Principles of Data Acquisition and Conversion (Rev. A) PDF | HTML 28 Jun 2018
Application note Reduce Effects of Ext RC Filter on Gain Error and Drift in SAR ADC w/Int AFE (Rev. A) 25 Jul 2017
Technical articles The backbone behind the ‘connected home’ and ‘industrial Internet’ 23 Jul 2014
White paper Enabling and integrating wired & wireless technologies for grid interoperability 22 Mar 2019
Technical articles Perils of using op amps outside the specified conditions 18 Nov 2014
White paper Moving from conventional to intelligent substations 17 Jan 2019
Application note HSR/PRP Solutions on Sitara Processors for Grid Substation Communication 17 Apr 2018
Application note A Glossary of Analog-to-Digital Specifications and Performance Characteristics (Rev. B) 13 Sep 2019
Application note TI DSP Benchmarking 13 Jan 2016
Application note Low-Emission Designs With ISOW7841 Integrated Signal and Power Isolator (Rev. C) 11 May 2022
Application note Introduction to HVDC Architecture and Solutions for Control and Protection (Rev. B) PDF | HTML 11 May 2022
Application note Reducing Phase Delay by Averaging on ADS8686S with Burst Sequencer Mode PDF | HTML 10 May 2022
Application note Expanding Analog Input Channels in Grid Applications (Using 16-Channel, 16-Bit, (Rev. A) 10 May 2022
Technical articles Inductive sensing: Linear position sensing (Part 2) 08 Jul 2014
Application note Electric Power System Coherent Sampling 08 Dec 2012
Technical articles Making industrial communication easy with AMIC110 SoCs 06 Jun 2017

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