Octal, RS-232/RS-423 Line Driver

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Product Details

The ADM5170 is an octal line driver suitable for digital communication systems with data rates up to 116 kB/s. Input TTL or CMOS signal levels are inverted and translated into either EIA RS-232E or RS-423A signal levels depending on the status of the Mode Select inputs MS+ and MS–. With both Mode Select inputs at GND, RS-423 operation is selected while with MS+ connected to VDD and MS– connected to VSS, RS-232 operation is selected.

The output slew rates may be controlled using an external resistor connected between the SRA (Slew Rate Adjust) pin and GND. Resistor values between 2 kW and 10 kW may be selected giving a slew rate which can be adjusted from 10 V/ms to 2.2 V/ms. This adjustment of the slew rate allows tailoring of the output characteristics to suit the interface cable being used.

The outputs may be disabled using the EN (Enable Input). This feature permits sharing of a common output line.

The ADM5170 is fabricated on an advanced CMOS process featuring low power consumption. In the disabled state the power consumption reduces from 500 mW to 40 mW. The ADM5170 is available in a 28-lead PLCC package.


  • High Speed Communication
  • Computer I-O Ports Peripherals
  • High Speed Modems
  • Printers
  • Logic Level Translation

Product Lifecycle

recommend Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

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ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

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The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

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