TIDA-00170

16-Bit Analog Mixed Input and Output Module for Programmable Logic Controller (PLC) Reference Design

TIDA-00170

Design files

Overview

The TIDA-00170 is a reference design for industrial control Analog Mixed Input Output Modules. The design implements four channel analog input & two channel analog output. The analog input channels can measure all standard industrial voltages up to ±10V and current inputs up to 24mA. The two simultaneous analog outputs can source voltage up to ±10V and current up to 24mA.

The reference design includes the necessary on-board protection circuit & is tested for IEC61000-4 standard – EFT, ESD and Surge requirements with IO Controller platform. The protection circuitry does not negatively affect the design and test results showed typical unadjusted errors were less than 0.1% of the full-scale range (FSR) for the analog input channel and less than 0.2% FSR for the analog output channel.

Features
  • 16-bit resolution, user programmable analog input output ranges
  • Programmable channels: Each I/P channel can be configured as current or voltage input and O/P channel can be configured as voltage or current output with software configuration
  • Accuracy - Input Ch better than  ±0.1% FSR at 25 °C, Output Ch better than  ±0.2% FSR at 25 °C
  • On-board isolated Flybuck™ power supply with inrush current protection
  • Designed to comply with IEC61000-4 Standards for ESD, EFT, and Surge

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDU392.PDF (6212 K)

Reference design overview and verified performance test data

TIDRBB4.PDF (795 K)

Detailed schematic diagram for design layout and components

TIDRBB5.PDF (37 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRBB6.ZIP (302 K)

Detailed overview of design layout for component placement

TIDRBB7.ZIP (1408 K)

Detailed overview of design layout for component placement

TIDRBB9.ZIP (4864 K)

Files used for 3D models or 2D drawings of IC components

TIDRBB8.PDF (3785 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Digital isolators

ISO7141CCQuad-channel, 3/1, 50-Mbps digital isolator

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Digital isolators

ISO7421Dual-channel, 1/1, 1-Mbps digital isolator

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Isolated DC/DC converters & modules

LM50177.5-100V Wide Vin, 600mA Constant On-Time Synchronous Buck Regulator

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Linear & low-dropout (LDO) regulators

TPS7A16100-mA, 60-V, ultra-low-IQ, low-dropout (LDO) voltage regulator with power good and enable

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Linear & low-dropout (LDO) regulators

TPS7A30200-mA, low-noise, high-PSRR, negative, adjustable low-dropout voltage regulator with enable

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Linear & low-dropout (LDO) regulators

TPS7A471-A, 36-V, low-noise, high-PSRR, low-dropout voltage regulator with enable

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Precision ADCs (<=10MSPS)

ADS868816-bit, 500-kSPS, 8-channel, single-supply SAR ADC with bipolar input ranges

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Precision DACs (<=10MSPS)

DAC876016-Bit Single-Channel Programmable Current/Voltage Output DAC for 4-20mA current loop applications

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Precision op amps (Vos<1mV)

OPA188Precision, Low-Noise, Rail-to-Rail Output, 36V Zero-Drift Operational Amplifier

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Shift registers

SN74HC5958-bit shift registers with 3-state output registers

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eFuses & hot swap controllers

LM50699-V to 80-V hot swap controller with power limiting

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Technical documentation

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Type Title Date
* Design guide 16-Bit Analog Mixed Input and Output Module for PLCs (TIDA-00170) Oct. 01, 2014
Technical article ADC accuracy: Effect of temperature drift on ADC signal chain (Part 3) Feb. 27, 2015

Related design resources

Reference designs

REFERENCE DESIGN
TIDA-00118 16-Bit Analog Output Module Reference Design for Programmable Logic Controllers (PLC)

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