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DC1746A-A - 

Demonstration Board, 2.5kVRMS Galvanically Isolated RS485/RS422 Transceiver Interface

DC1746A-A - Demonstration Board, 2.5kVRMS Galvanically Isolated RS485/RS422 Transceiver Interface

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Manufacturer Part No:
DC1746A-A
Newark Part No.:
25T5586

Product Information

:
2.5kVRMS Galvanically Isolated RS485/RS422 Transceiver Interface, Integrated DC/DC Converter
:
Linear Technology
:
LTM2881
:
Interface
:
Isolated RS485/RS422 µModule Transceiver
:
Board, Datasheet
:
-
:
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Product Overview

DC1746A-A demonstration board is an isolated RS485/RS422 uModule transceiver with integrated power featuring the LTM2881-3. A single supply powers both sides of the interface through an integrated, isolated, low noise, efficient 5V output DC/DC converter. Coupled inductors and an isolation power transformer provide 2500VRMS of isolation between the line transceiver and the logic interface. This device is ideal for systems where the ground loop is broken allowing for large common mode voltage variation. Transmit data, DI and receive data, RO, are implemented with event driven low jitter processing. The receiver has a one eighth unit load supporting up to 256 nodes per bus. The demo circuit features an EMI optimized circuit configuration and printed circuit board layout. All components are integrated into the uModule transceiver. The demo circuit has been designed and optimized for low RF emissions.
  • 3.3V operation
  • Low EMI 250Kbps data rate
  • High ESD: ±15kV HBM on transceiver interface
  • High common mode transient immunity
  • High input impedance failsafe RS485 receiver
  • Current limited drivers and thermal shutdown
  • Compatible with TIA/EIA-485-A and PROFIBUS
  • High impedance output during internal fault condition
  • Low current shutdown mode
  • General purpose CMOS isolated channel

Applications

Communications & Networking, Industrial

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