Factories are expanding to enable Industry 4.0, buildings are getting smarter, and robotics are continually evolving. Such wide spread innovation drives designers in various industries to optimize and enhance their products. Our industrial digital and analog I/O IC portfolio provide the highest levels of robustness on the market with the highest integration and software configurability for a more flexible solution.

High-voltage industrial digital input (DI) and digital output (DO) signals (also called binary signals), typically range in magnitude from 0 to 24V. Digital I/O signals are used by industrial automation and control equipment, operating in harsh and noisy environments, to communicate on/off status between remote devices and controllers. Our industrial digital I/O ICs perform voltage level translation while providing circuit protection. Many also perform data serialization to allow economical operation through digital signal isolators.

Analog I/O signals are used in both factory and build automation to enable smarter sensing and push intelligence at the edge. Our best in class analog input (AI), analog output (AO) and configurable analog input/output (CIO) ICs provide the highest levels of system accuracy in the market with per-channel software configurability. Factory calibration and robust integrated protection reduce overall system cost and size. Innovative designs decrease power consumption allowing operation of more channels without derating for ambient temperature.

Key Benefits:

  • Most robust solutions on the market with the highest integration.
  • Software configurability provides flexibility and reduces end product SKUs.
  • Fast time-to-market with the best support in the industry.

Digital Inputs

Industrial digital input (DI) ICs interface between high-voltage signals from sensors on the fac...

Digital Outputs

Industrial digital output (DO) ICs are used for high-speed switching of high-voltage output sign...

Digital In/Out

Digital I/O devices allow a controller to configure a channel electronically as either a digital...

Configurable Analog Input, Output & Input/Output ICs

Analog I/O devices enable communication over long distances for sensors on the factory floor or in building automation with control equipment. Software configurable analog I/O allows a controller to configure a channel electronically as either an analog input or analog output in either current or voltage mode without the need to change hardware. This provides greater design flexibility and reduces the costs associated with changes that may be required during project commissioning. Our AIO products are fully IEC compliant, software-configurable and provide some of the smallest integrated solutions on the market.

Industrial Digital IO Evaluation Boards and Peripheral Modules

Peripheral module boards (PMBs) provide an easy way to evaluate our digital IO devices.

PMB Key Features

  • Powered from a Single 3.0V to 5.5V Logic Supply, Without the Need for a 24V Field Supply
  • Configured for IEC 61131-2 Type 1 and Type 3 Sensor Inputs
  • Proven PCB Layout
  • Works with USB2PMB2# or USB2GPIO# Adapter and Munich GUI Software

Featured Videos

Quick Overview of the MAX14906 Quad Industrial Digital IO
1:07 June 03, 2020

How to Safely Demagnetize Your Inductive Load Using SafeDemag
6:52 August 06, 2019

Introduction to the MAX14916 Compact Industrial Octal 1A/Quad 2A High-Side Switch with Diagnostics
2:58 November 18, 2019

Technical Documents

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Customer Testimonials

Design Solution HollySys

Design Solution Radio Bridge


Empowering Intelligent Automation and Motion Control – Chapter 1: What is Convergence? AI, IoT, Cloud, Adaptive IO
4:54 July 08, 2020

Empowering Intelligent Automation and Motion Control – Chapter 2: Driving Intelligence to the Edge, In Action
5:56 July 08, 2020

Empowering Intelligent Automation and Motion Control – Chapter 3: Adaptive Manufacturing, Today and in the Future
4:15 July 08, 2020

On the Go Vital Monitoring and Gaming Platform

January 13, 2021

This blog explores an application using a low power SIMO PMIC, the world’s smallest solution size and highest system efficiency, and the story behind it.

The Dawn of the Self-Aware Machine

December 10, 2020

What does "The Dawn of the Self-aware Machine" really mean? I am sure many are thinking of the human-like robots seen in the movies as a way to further replace people on the factory floor.

How iButton Devices Facilitate Electric Car Safety

October 29, 2020

Formula Student Germany competitors design fierce electric race cars. They’ve relied on Maxim Integrated’s iButton devices for electric car safety.

How Being Bold Brings Smart Automation Solutions

October 27, 2020

See how the industry’s first true software-configurable universal analog IO solution provides the flexibility to meet industrial automation challenges.

How Performance at the Edge Drives Smarter Manufacturing

October 26, 2020

Maxim Integrated’s Jeff DeAngelis explains how the COVID-19 pandemic has highlighted what’s needed for manufacturing lines to adapt to changing demands.

What Makes Cryptography Easier? Secure Authenticators and Coprocessors

September 17, 2020

See how secure authenticators and coprocessors make it easier for you to integrate cryptography to protect your embedded designs.

Extend the battery life of your vehicle tracker/asset tracker/IoT device 10-fold with Maxim’s ultra-low power GPS solution

September 15, 2020

Full ultra-low power GPS solution using the MAX2769C GNSS L1 receiver, and the MAX32632 ARM Cortex M4 microcontroller

Understand and Address Threats to Cryptographic Systems

September 10, 2020

Understand the threats that cryptographic systems face and how you can guard against these threats.

Two Beautiful Ways to Measure Temperature

September 09, 2020

Learn how easily you can design with the latest Maxim resistance temperature detectors (RTDs) and temperature sensors.

When Smarter Gets Smaller, Only a Dual-Core Micro Will Do

September 03, 2020

Learn how a dual-core Bluetooth Low Energy microcontroller meets the size, power, and security demands of wireless, battery-operated IoT designs.

MAX14906 Industrial Quad Digital IO Enables Robust, Smaller Designs
1:06 June 03, 2020

Make Your Digital IO Interface Simpler but Stronger
1:04 June 02, 2020

Featured Products

Device Type Device Evaluated Device Description Evaluation Kit Peripheral Module Board
Digital Input MAX22190 8-Channel Industrial Digital Input with Diagnostics MAX22190EVKIT MAX22190PMB
Digital Input MAX22191 Single-Channel Parasitically Powered Digital Input MAX22191EVKIT MAX22191PMB
Digital Input MAX22192 Octal Industrial Digital Input with Diagnostics and Digital Isolation MAX22192EVKIT  
Digital Input MAX22195 High-Speed, Octal, Industrial Digital Input with Parallel Output MAX22195EVKIT  
Digital Output MAX14912 8-Channel High-Speed, Digital Output Driver MAX14912EVKIT MAX14912PMB
Digital IO MAX14914 Single-Channel Driver, Configurable as DI or DO


Digital IO MAX14906 Quad-Channel Driver, Configurable as DI or DO


Digital Output MAX14915

8-Channel Industrial Digital Outputs with Diagnostics

Digital Output MAX14916 8-Channel 1A/4-Channel 2A Industrial Digital Outputs with Diagnostics MAX14916EVKIT  
Companion Board Device Evaluated Description Board Number
Adapter Board - Low-cost, easy-to-use USB-to-I2C/SPI/GPIO interface adapter board USB2GPIO
Isolation Board MAX14483 Provide isolation between the USB adapter board and any peripheral module board USB2GPIOISO

Reference Designs

EE-Sim® Design Tool

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Fully IEC61131-2-compliant octal digital input with wire-break detection, integrated diagnostics...
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The only fully software-configurable DIO push-pull, fast, and surge protection product with Safe...
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Octal HS or push-pull, SafeDemag surge protection with integrated diagnostics and LED matrix.