AC-Coupled RS-485 Reference Design TIDA-01171 (ACTIVE)

Description & Features

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Key Document

Description

The TIDA-01171 reference design allows for RS-485 communication over an AC-coupled link, even at very low data rates.  This allows for nodes to communicate even when large ground potential differences exist between nodes.  Using AC coupling also helps to protect transceivers from bus faults that can result in direct shorts to high-voltage power supplies.

Features
  • Provides functional isolation of RS-485 data links through series AC-coupling capacitors
  • Operates at data rates up to 1 Mbps
  • Works with existing MCU/UART interfaces
  • Uses only two wires for data transmission (no grounding wires are needed)

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Schematic/Block Diagram

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Design Files

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TI Devices (4)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
SN65HVD3088E  Low-power Half-duplex RS-485 Transceiver  Interface  Sample & Buy View Design Kits & Evaluation Modules
SN65HVD96  SymPol Transceiver  Interface  Sample & Buy View Design Kits & Evaluation Modules
SN74HC112  Dual J-K Negative-Edge-Triggered Flip-Flops With Clear and Preset  Flip-flop/latch/register  Sample & Buy View Design Kits & Evaluation Modules
SN74LVC1G04  Single Inverter  Buffer/driver  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
SN65HVD3088E Download Download
Download Download
SN65HVD96 Download Download
SN74HC112 Download -
Download Download
SN74LVC1G04 Download -
Download Download
Download Download
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Download -
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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 4128 15 Jun 2016
Design files (6)
Title Type Size (KB) Date
ZIP 231 27 Jun 2016
ZIP 367 27 Jun 2016
PDF 323 27 Jun 2016
PDF 58 27 Jun 2016
PDF 95 27 Jun 2016
PDF 55 27 Jun 2016

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