Features and Benefits

  • High Flexibility Supports All Encoder Types
    • Selectable RS-422/HTL/TTL/DI Receivers
    • RS-422 Switching Rates Up to 35Mbps
    • TTL Switching Rates Up to 5MHz
    • HTL Switching Rates Up to 400kHz
    • SPI or Pin-Controlled Operation
    • SPI Interface Allows Per-Receiver Configuration
    • 1.62V to 5.5V Logic Interface
  • Integrated Fault Detection Reduces Down-Time
    • Open-Wire and Short-Circuit Detection
    • Overvoltage and Undervoltage Fault Detection
  • Integrated Protection Ensures Robust Communication
    • ±40V Fault Protection Range
    • ±20V RS-422 Common Mode Range
    • DI Glitch Filters
    • ±25kV HBM ESD
    • ±7kV Air-Gap per IEC 61000-4-2 ESD
    • ±10kV Contact per IEC 61000-4-2 ESD
    • -40°C to +125°C Operating Temperature Range

Product Details

The MAX14890E incremental encoder receiver contains four differential receivers and two single-ended receivers.

The differential receivers can be operated in RS-422 or differential high-threshold logic (HTL) modes and are optionally configurable for single-ended TTL/HTL operation. The MAX14890E features a wide common mode input range of -20V to +20V in RS-422 mode.

The auxiliary IEC 61131-2 Type-1/Type-3 digital inputs are designed for operation with switches or proximity sensors and can be individually configured for TTL operation.

All receiver input signals are fault protected to voltage shorts in the ±40V range. Per channel fault detection provides warning of irregular conditions such as small differential signals, shorts, opens, overvoltages, and undervoltages.

The MAX14890E features a pin-selectable SPI or parallel-logic interface. SPI control provides detailed diagnostics and individual configurations for receivers.

The MAX14890E is available in a 32-pin TQFN-EP (5mm x 5mm) and operates over the -40°C to +125°C temperature range.


  • Encoder Interfaces
  • Motor Controllers
  • Pulse Counters
  • Servo Control Commutation

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)

Tools & Simulations

IBIS Models

Software Development

Reference Designs (1)

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.

PCN-PDN Information

Sample & Buy

Ordering FAQs

See our Ordering FAQs for answers to questions about online orders, payment options and more.


Buy Now Pricing

(**) Displayed Buy Now Price and Price Range is based on small quantity orders.


List Pricing

(*)The 1Ku 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. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.



Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.

Price Table Help


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.