3.0 V to 5.5 V with VIO, ±12 kV IEC ESD Protected, 50 Mbps RS-485 Transceiver

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Product Details

The ADM3065E is a 3.0 V to 5.5 V, IEC electrostatic discharge (ESD) protected RS-485 transceiver, allowing the device to withstand ±12 kV contact discharges on the transceiver bus pins without latch-up or damage. The ADM3066E/ADM3062E features a VIO logic supply pin allowing a flexible digital interface capable of operating as low as 1.62 V.

The ADM3065E/ADM3066E are suitable for high speed, 50 Mbps, bidirectional data communication on multipoint bus transmission lines. The ADM3061E/ADM3062E/ADM3065E/ADM3066E feature a ¼ unit load input impedance, which allows up to 128 transceivers on a bus. The ADM3061E/ADM3062E models offer all of the same features as the ADM3065E/ADM3066E models, but at a low 500 kbps data rate suitable for operation over long cable runs.

The ADM3061E/ADM3062E/ADM3065E/ADM3066E are half-duplex RS-485 transceivers, fully compliant to the Profibus® standard with increased 2.1 V bus differential voltage at VCC ≥ 4.5 V.

The RS-485 transceivers are available in a number of space-saving packages, such as a 10-lead, 3 mm × 3 mm LFCSP, an 8-lead, 3 mm × 3 mm MSOP, a 10-lead, 3 mm × 3 mm MSOP, and an 8-lead, narrow body SOIC package. Models with operating temperature ranges of −40°C to +125°C and −40°C to +85°C are available.

Excessive power dissipation caused by bus contention or by output shorting is prevented by a thermal shutdown circuit. If, during fault conditions, a significant temperature increase is detected in the internal driver circuitry, this feature forces the driver output into a high impedance state.

The ADM3061E/ADM3062E/ADM3065E/ADM3066E guarantee a logic high receiver output when the receiver inputs are shorted, open, or connected to a terminated transmission line with all drivers disabled.


  • Industrial fieldbuses
  • Process control
  • Building automation
  • Profibus networks
  • Motor control servo drives and encoders

Product Lifecycle

icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

Evaluation Kits


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EVAL-ADM3066E Circuit Diagram

EVAL-ADM3066E Photo

Product Details

The EVAL-ADM3066EEBZ and EVAL-ADM3066EEB1Z allow quick and easy evaluation of the ADM3066E 50 Mbps RS-485 transceiver with standard MSOP and LFCSP footprints, respectively. The evaluation boards allow the input and output functions to be exercised without external components. Screw terminal blocks provide convenient connections for power and ground, digital input and output, and RS-485 signals. The evaluation boards can be powered by a standard configurable bench power supply within a 3.0 V to 5.5 V range.

The EVAL-ADM3066EEBZ evaluation board has a footprint for the ADM3066EBRMZ half duplex RS-485 transceiver in an 10-lead MSOP package. The EVAL-ADM3066EEB1Z evaluation board has a footprint for a half duplex RS-485 transceiver in an 10-lead LFCSP package.

Complete specifications for the ADM3066E device are provided in the ADM3066E data sheet and should be consulted in conjunction with user guide (UG-1131) when using the evaluation board.

Tools & Simulations

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IBIS Models

Design Resources

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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.

ADM3066E Material Declaration
PCN-PDN Information Quality And Reliability Symbols and Footprints



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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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Evaluation Boards Pricing displayed is based on 1-piece.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.