1. Products
  2. Optical Communications and Sensing
  3. Fiber Optic Data
  4. Clock and Data Recovery/Retiming
  5. ADN2855


Features and Benefits

  • Serial data input
    • 155.52 Mbps/622.08 Mbps/1244.16 Mbps/1250.00 Mbps
  • 12-bit acquisition time
  • 4-bit parallel LVDS output interface
  • Patented dual-loop clock recovery architecture
  • Integrated PRBS generator
  • Byte rate reference clock
  • Loss-of-lock indicator
  • Supports double data rate (DDR)-compatible FPGA
  • I2C interface to access optional features
  • Single-supply operation: 3.3 V
  • Power
    • 670 mW typical in serial output mode
    • 825 mW typical in deserializer mode
  • 5 mm × 5 mm, 32-lead LFCSP

Product Details

The ADN2855 is a burst mode clock and data recovery IC designed for GPON/BPON/GEPON optical line terminal (OLT) receiver applications. The part can operate at 155.52 Mbps, 622.08 Mbps, 1244.16 Mbps, or 1250.00 Mbps data rates, selectable via the I2C interface.

The ADN2855 frequency locks to the OLT reference clock and aligns to the input data within 12 bits of the start of the preamble. The device provides a full rate or an optional half rate output clock for a double data rate (DDR) interface to an FPGA or digital ASIC.

All specifications are quoted for −40°C to +85°C ambient temperature, unless otherwise noted. The ADN2855 is available in a compact 5 mm × 5 mm, 32-lead chip scale package.


  • Passive optical networks
  • GPON/BPON/GEPON OLT receivers

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)

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
ADN2855ACPZ Material Declaration Reliability Data 32-Lead LFCSP (5mm x 5mm w/ EP)
ADN2855ACPZ-R7 Material Declaration Reliability Data 32-Lead LFCSP (5mm x 5mm w/ EP)
Wafer Fabrication Data

PCN-PDN Information

Select a model from the dropdown below to subscribe to PCN/PDN notifications and view past notifications as well.

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.


Lead Times

Please see the latest communication from our CCO regarding lead times.



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