Overview

Features and Benefits

  • 5 kV rms isolated RS-485/RS-422 transceiver
  • ±42 V ac/dc peak fault protection on RS-485 bus pins
  • Certified Level 4 EMC protection on RS-485 A, B bus pins
    • IEC 61000-4-5 surge protection (±4 kV)
    • IEC 61000-4-4 electrical fast transient (EFT) protection (±2 kV)
    • IEC 61000-4-2 electrostatic discharge (ESD) protection
      • ±8 kV contact discharge
      • ±15 kV air discharge
    • IEC 61000-4-6 conducted radio frequency (RF) immunity (10 V/m rms)
  • Certified IEC 61000-4-x immunity across isolation barrier
    • IEC 61000-4-2 ESD, IEC 61000-4-4 EFT, IEC 61000-4-5 surge, IEC 61000-4-6 conducted RF immunity, IEC 61000-4-3 radiated immunity, IEC 61000-4-8 magnetic immunity
  • RS-485 A, B pins human body model (HBM) ESD protection: >±30 kV
  • Safety and regulatory approvals (pending)
    • CSA Component Acceptance Notice 5A, DIN V VDE V 0884-10, UL 1577, CQC11-471543-2012
  • TIA/EIA RS-485/RS-422 compliant over full supply range
    • 3 V to 5.5 V operating voltage range on VDD2
    • 1.7 V to 5.5 V operating voltage range on VDD1 logic supply
  • Common-mode input range of −25 V to +25 V
  • High common-mode transient immunity: >75 kV/μs
  • Robust noise immunity (tested to the IEC 62132-4 standard)
  • Passes EN55022 Class B radiated emissions by 6 dBμV/m margin
  • Receiver short-circuit, open-circuit, and floating input fail-safe
  • Supports 256 bus nodes (96 kΩ receiver input impedance)
  • −40°C to +125°C temperature option
  • Glitch free power-up/power-down (hot swap)
ADM2795E-EP supports defense and aerospace applications (AQEC standard)
  • Download ADM2795E-EP data sheet (pdf)
  • Military −55°C to +125°C temperature range
  • Controlled manufacturing baseline
  • 1 assembly/test site
  • Enhanced product change notification
  • Qualification data available on request
  • V62/17611 DSCC Drawing Number

Product Details

The ADM2795E is a 5 kV rms signal isolated RS-485 transceiver that features up to ±42 V of ac/dc peak bus overvoltage fault protection on the RS-485 bus pins. The device integrates Analog Devices, Inc., iCoupler® technology to combine a 3-channel isolator, RS-485 transceiver, and IEC electromagnetic compatibility (EMC) transient protection in a single package. The ADM2795E is a RS-485/RS-422 transceiver that integrates IEC 61000-4-5 Level 4 surge protection, allowing up to ±4 kV protection on the RS-485 bus pins (A and B). The device has IEC 61000-4-4 Level 4 EFT protection up to ±2 kV and IEC 61000-4-2 Level 4 ESD protection on the bus pins, allowing this device to withstand up to ±15 kV on the transceiver interface pins without latching up. This device has an extended common-mode input range of ±25 V to improve data communication reliability in noisy environments. The ADM2795E is capable of operating over wide power supply ranges, with a 1.7 V to 5.5 V VDD1 power supply range, allowing interfacing to low voltage logic supplies. The ADM2795E is also fully TIA/EIA RS-485/RS-422 compliant when operated over a 3 V to 5.5 V VDD2 power supply. The device is fully characterized over an extended operating temperature range of −40°C to +125°C, and is available in a 16-lead, wide-body SOIC package.

Applications

  • Heating, ventilation, and air conditioning (HVAC) networks
  • Industrial field buses
  • Building automation
  • Utility networks

Product Lifecycle icon-recommended 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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Evaluation Boards Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
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.