ADN2891

NOT RECOMMENDED FOR NEW DESIGNS

3.3 V, 3.2 Gbps Limiting Amplifier

Data Sheet (Rev. B) Product Selection Table

Part Models: 4
1ku List Price: price unavailable

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Overview

Input sensitivity: 4 mV p-p
80 ps rise/fall times
CML outputs: 700 mV p-p differential
Programmable LOS detector: 3.5 mV to 35 mV
Rx signal strength indicator (RSSI)
SFF-8472-compliant average power measurement
Single-supply operation: 3.3 V
Low power dissipation: 145 mW
Available in space-saving 3 mm × 3 mm, 16-lead LFCSP
Extended temperature range: −40°C to +95°C
SFP reference design available

The ADN2891 is a 3.2 Gbps limiting amplifier with integrated loss-of-signal (LOS) detection circuitry and a received signal strength indicator (RSSI). This part is optimized for SONET, Gigabit Ethernet (GbE), and Fibre Channel optoelectronic conversion applications. The ADN2891 has a differential input sensitivity of 4 mV p-p and accepts up to a 2.0 V p-p differential input overload voltage. The ADN2891 supports current mode logic (CML) outputs with controlled rise and fall times.

By monitoring the bias current through a photodiode, the on-chip RSSI detector measures the average power received with 2% typical linearity over the entire valid input range of the photodiode. The on-chip RSSI detector facilitates SFF-8472-compliant optical transceivers by eliminating the need for external RSSI detector circuitry.

Additional features include a programmable loss-of-signal (LOS) detector and output squelch.

The ADN2891 is available in a 3 mm × 3 mm, 16-lead LFCSP.

Applications

SFP/SFF/GBIC optical transceivers
OC-3/OC-12/OC-48, GbE, Fibre Channel (FC) receivers
10GBASE-LX4 transceivers
WDM transponders

Part Models: 4
1ku List Price: price unavailable

Documentation

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 Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
ADN2891ACPZ-500RL7	16-Lead LFCSP (3mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADN2891ACPZ-RL	16-Lead LFCSP (3mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADN2891ACPZ-RL7	16-Lead LFCSP (3mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADN2891ACPZ-WP	16-Lead LFCSP (3mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Jul 8, 2021 - 21_0109 Assembly Site Transfer of Select LFCSP Products to ASE Korea
		PCN21_0109_Form Material_Report Qualification Results Summary
ADN2891ACPZ-500RL7
ADN2891ACPZ-RL
ADN2891ACPZ-RL7
ADN2891ACPZ-WP
Feb 13, 2014 - 14_0038 Conversion of 3x3mm body Size LFCSP Package Outlines from Punch to Sawn and Transfer of Assembly Site to Amkor Philippines.
		PCN14_0038_Form Material_Report Detailed Change Description Package Outline Drawing Qualification Report Summary
ADN2891ACPZ-500RL7
ADN2891ACPZ-RL
ADN2891ACPZ-RL7
Sep 10, 2012 - 11_0020 Conversion of Select Sizes of LFCSP Package Outlines from Punch to Sawn and Transfer of Assembly Site to StatsChippac Malaysia.
		PCN11_0020_Form Material_Report Detailed Change Description Package Outline Drawing Qualification Report Summary
ADN2891ACPZ-500RL7
ADN2891ACPZ-RL
ADN2891ACPZ-RL7
Oct 26, 2009 - 09_0202 Inclusion of Banding Tape for LFCSP REEL7 parts.
		Material_Report PCN09_0202_Form Proposal for Inclusion of Banding Tape
ADN2891ACPZ-500RL7