1. Products
  2. Interface and Isolation
  3. RS-232 / RS-422 / RS-485 / RS-562
  4. RS-485 and RS-422
  5. ADM4168E


Features and Benefits

  • Dual RS-422 transceiver for ESD protection on bus input/output pins
    • ±15 kV HBM
    • ±8 kV IEC 61000-4-2, contact discharge
    • ±8 kV IEC 61000-4-2, air discharge
  • Complies with TIA/EIA-422-B and ITU-T recommendation V.11
  • Open circuit fail-safe
  • Suitable for 5 V power supply applications
  • Low supply current operation: 9 mA maximum
  • Low driver output skew
  • Receiver line input resistance: 30 kΩ typical
  • Receiver common-mode range: −7 V to +7 V
  • Power-up/power-down without glitches
  • 16-lead TSSOP package
  • Operating temperature range: −40°C to +85°C

Product Details

The ADM4168E is a dual RS-422 transceiver suitable for high speed communication on point to point and multidrop transmission lines. The ADM4168E is designed for balanced transmission lines and complies with TIA/EIA-422-B.

The differential driver outputs and receiver inputs feature electrostatic discharge (ESD) circuitry that provides protection up to ±15 kV human body model (HBM) and ±8 kV IEC 61000-4-2 (contact and air discharge).

The ADM4168E operates from a single 5 V power supply. Excessive power dissipation caused by bus contention or output shorting is prevented by short-circuit protection circuitry. Short-circuit protection circuits limit the maximum output current to −150 mA during fault conditions.

The receivers of the ADM4168E contain a fail-safe feature that results in a logic high output state if the inputs are unconnected (floating).

The ADM4168E is fully specified over the commercial and industrial temperature ranges and is available in a 16-lead TSSOP package.


  • RS-422 interfaces
  • High data rate motor control
  • Single-ended to differential signal conversion
  • Point to point and multidrop transmission systems

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.

Evaluation Kits (1)

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Design Resources

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.View our quality and reliability program and certifications for more information.

Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
ADM4168EBRUZ Material Declaration Reliability Data 16-Lead TSSOP
ADM4168EBRUZ-RL7 Material Declaration Reliability Data 16-Lead TSSOP
Wafer Fabrication Data

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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.