Analog Devices ADM1486 RS-485/RS-422 Transceiver Handbook

The ADM1486 is a differential line transceiver suitable for high speed bidirectional data communication on multipoint bus transmission lines. It is designed for balanced data transmission, complies with EIA Standards RS-485 and RS-422, and is recommended for PROFIBUS applications.


Analog Devices ADM1486 RS-485/RS-422 Transceiver Handbook - cover page
Brand
Analog Devices
Category
Other Electronics
Document type
Datasheet
Language
English
Pages
16
File format
PDF
File size
332 KB
Published
26 March, 2012
Updated
30 September, 2023
Model
ADM1486
MD5 checksum
60910BA3CB014599670AC2F5D46779E4

About this manual

The ADM1486 is a differential line transceiver designed for high‑speed bidirectional data communication on multipoint bus lines. It operates from a single 5 V supply and includes independent driver and receiver enable pins, with high‑impedance outputs when disabled. The device meets EIA RS‑485 and RS‑422 standards and is recommended for PROFIBUS applications.

Key specifications include a 30 Mbps data rate, driver propagation delay of 11 ns, receiver propagation delay of 12 ns, and protection features such as thermal shutdown at 150 °C and short‑circuit current limiting to 200 mA. The part is offered in an 8‑lead narrow‑body SOIC package and is rated for an industrial temperature range of –40 °C to +85 °C.

What's inside

  • Features
  • General Description
  • Specifications
  • Timing Specifications
  • Absolute Maximum Ratings
  • Pin Configuration and Function Descriptions
  • Test Circuits
  • Switching Characteristics
  • Outline Dimensions
  • Ordering Guide

Specifications

Data Rate30 Mbps
Supply Voltage5 V ±5 %
Driver Propagation Delay11 ns
Receiver Propagation Delay12 ns
Short‑Circuit Current Limit200 mA
Operating Temperature Range–40 °C to +85 °C (industrial)
Package8‑lead SOIC (narrow body)

Frequently asked questions

What is the maximum data rate of the ADM1486?

The ADM1486 supports up to 30 Mbps data rate.

What protection features are built into the ADM1486?

It includes thermal shutdown and short‑circuit protection that limit output current to 200 mA.

How many transceivers can be connected on a single bus?

Up to 50 transceivers may be connected simultaneously, but only one driver should be enabled at a time.

What is the driver propagation delay of the ADM1486?

The driver propagation delay is specified as 11 ns.

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