Analog Input, Output and Relay Drive Output Module for Smart Grid IEDs Reference Design TIDA-00310 (ACTIVE)

Description & Features

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Key Document

Description

This reference design showcases a flexible Analog IO solution for Smart Grid devices like Protection Relays and RTUs that also need to communicate with other devices on the grid that use the analog IO such as voltage (5V to 10V DC) or current (4-20mA). This solution enables both types of IO as well as a power digital relay drive. SPI and I2C communication interfaces are available on this module for communication to the processor.

Features
  • Analog I/O handled includes:
    • Current Input 0-20mA / 0-24mA / 4-20mA DC
    • Voltage Input 0-5V DC / 0-10V DC
  • Excellent accuracy < ±0.2 % of incoming signal
  • High Sampling rate (up to 500kSPS) 
  • Simplifies connectivity to MCU with SPI interface
  • Analog Output handling includes:
    • Flexible solution – configurable
    • Current/Voltage outputs
  • DAC Daisy Chaining minimizes connectivity to MCU
  • Digital Output handling includes:
    • 4x better power efficiency with respect to ULN series

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Design Files

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TI Devices (6)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
ADS8684  16-Bit 500kSPS 4-Channel SAR ADC With Bipolar Inputs Off 5V Supply  Analog-to-digital converters (ADCs)  Sample & Buy View Design Kits & Evaluation Modules
DAC8760  16-Bit Single-Channel Programmable Current/Voltage Output DAC for 4-20mA current loop applications  Digital-to-analog converters (DACs)  Sample & Buy View Design Kits & Evaluation Modules
OPA188  Precision, Low-Noise, Rail-to-Rail Output, 36V Zero-Drift Operational Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
TCA6408A  Low-Voltage 8-Bit I2C and SMBus I/O Expander  I2C  Sample & Buy View Design Kits & Evaluation Modules
TPL7407L  40V, 7-Channel NMOS Array, Low Side Driver  Power switches  Sample & Buy View Design Kits & Evaluation Modules
TPS7A16  60-V, 5-µA IQ, 100-mA low-dropout (LDO) voltage regulator with enable and power good  Power management  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
ADS8684 Download
DAC8760 Download -
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OPA188 Download Download
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TCA6408A Download Download
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TPL7407L Download
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TPS7A16 Download Download
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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 7316 07 Oct 2014
Design files (6)
Title Type Size (KB) Date
ZIP 1566 19 Dec 2014
ZIP 1530 19 Dec 2014
PDF 2563 19 Dec 2014
PDF 343 19 Dec 2014
PDF 21 19 Dec 2014
PDF 835 19 Dec 2014
Related Tools & Software

Software (2)



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