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MAXREFDES1165: 32-Channel Industrial Digital I/O Module

MAXREFDES1165

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Reference Guide

Description

The MAXREFDES1165 is a complete, 32-channel industrial digital I/O module comprising 16 digital inputs (DIs) and 16 digital outputs (DOs) that is built and tested in an industrial form factor to meet transient immunity standards such as IEC 61000-4.

The MAXREFDES1165 is a proven design that provides the hardware and software necessary to demonstrate the MAX22190 octal industrial digital input device with diagnostic features, and the MAX14915 octal industrial digital output with high-side switches. In this reference design, two MAX22190s are configured in daisy-chain mode, and two MAX14915s are configured in addressable SPI mode. Galvanic isolation is provided by the MAX14483 and MAX12930 to isolate the data from the logic (SPI master) and field (24V) sides.

The MAXREFDES1165 has a 12-pin Pmod-compatible connector (CNT1) for external SPI communication. For testing purposes, the reference design uses Maxim’s USB2PMB2# adapter board that receives commands from a PC through the USB port and translates them into an SPI interface. Alternatively, the user can connect the reference design board to any Pmod-compatible board, such as an FPGA or microcontroller system, and write their own software for controlling the MAX22190 and MAX14915.

Features

  • 32 Digital I/Os: 16 Inputs and 16 Outputs
  • High Integration Reduces BOM Count and PCB Space
  • Fault Tolerant with Built-In Diagnostics
  • Robust Design to Meet IEC 61000-4

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Designed, Built, Tested

Board pictured here has been fully assembled and tested. Not available for sale.

 

Maxim Devices (4)

Part Number Name Product Family Order Design kits and evaluation modules
MAX22190 Octal Industrial Digital Input with Diagnostics Sensor Interface Buy Now Design Kits
MAX14915 Compact Industrial Octal High-Side Switch with Diagnostics MOSFET Drivers and Controllers Buy Now Design Kits
MAX12930 Two-Channel, Low-Power, 3kVRMS and 5kVRMS Digital Isolators Isolation Buy Now Design Kits
MAX14483 6-Channel, Low-Power, 3.75kVRMS SPI Digital Isolator Isolation Buy Now Design Kits

Maxim Devices (4)

Part Number Product Family
Sensor Interface
Octal Industrial Digital Input with Diagnostics
MOSFET Drivers and Controllers
Compact Industrial Octal High-Side Switch with Diagnostics
Isolation
Two-Channel, Low-Power, 3kVRMS and 5kVRMS Digital Isolators
Isolation
6-Channel, Low-Power, 3.75kVRMS SPI Digital Isolator

Design Files (4)

Title Type Size Date
maxrefdes1165-pcb PDF KB 2020-06-02
maxrefdes1165 ZIP 2MB 2021-04-30
maxrefdes1165-schematic PDF KB 2020-06-02
maxrefdes1165-bom PDF KB 2020-06-02
Date Type
2020-06-02

maxrefdes1165-pcb

(PDF, KB)

2021-04-30

maxrefdes1165

(ZIP, 2MB)

2020-06-02

maxrefdes1165-schematic

(PDF, KB)

2020-06-02

maxrefdes1165-bom

(PDF, KB)

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