Analog input module

Products and reference designs

Analog input module

Block diagram


Our integrated circuits and reference designs enable you to build analog input modules with high-channel density, high common-mode voltages and out-ruling miswiring protection.

Design requirements

Analog input modules often require:

  • Increased speed for precision signal chain.
  • High voltage analog multiplexer.
  • Advanced protection and diagnostics.

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Block diagram

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Technical documentation

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Type Title Date
Technical articles 2-wire 4-20mA transmitters: Controlling 2-Wire Transmitter Outputs with Externally Powered Sources (Part 4) 24 Feb 2015
Application note AM335x Reliability Considerations in PLC Applications (Rev. A) 22 Oct 2015
Technical articles Power Tips: How to program PMBus Devices 21 Oct 2014
Application note Importance of Latency in Factory Automation (Rev. A) 11 May 2022
Application note Output Power Port Protection in PLC Systems 11 May 2022
Application note Simplifying EFT, Surge and Power-Fail Protection Circuits in PLC Systems (Rev. D) PDF | HTML 11 May 2022
Technical articles The impact of voltage reference noise on delta-sigma ADC resolution 11 Dec 2015
Application note Supporting High Voltage Common Mode Using Difference Amplifier PDF | HTML 10 May 2022
Application note Supporting High Voltage Common Mode Using Instrumentational Amplifier PDF | HTML 10 May 2022
White paper Signal and Power Isolation Considerations for Compact, Efficient Analog Input PDF | HTML 10 May 2022
More literature Isolated Power Topologies for PLC I/O Modules and Other Low-Power Applications PDF | HTML 09 Nov 2022
Application note Protecting I/O modules from surge events 08 May 2022
Application note 16-Bit 8-Channel PLC Analog Input Module with High Voltage (±150 V) Common Mode 08 May 2022
Application note Multichannel Analog Input Modules for PLC Equipment 05 Jan 2019
Technical articles Powering FPGAs – Improving undershoot of voltage regulators with asynchronous pulse injection 02 Feb 2018

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