ADN2891
NOT RECOMMENDED FOR NEW DESIGNS3.3 V, 3.2 Gbps Limiting Amplifier
- Part Models
- 4
- 1ku List Price
- price unavailable
Part Details
- 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
Documentation
Data Sheet 1
Evaluation Design File 1
Informational 1
Circuit Note 1
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) | ||
| ADN2891ACPZ-RL | 16-Lead LFCSP (3mm x 3mm w/ EP) | ||
| ADN2891ACPZ-RL7 | 16-Lead LFCSP (3mm x 3mm w/ EP) | ||
| ADN2891ACPZ-WP | 16-Lead LFCSP (3mm x 3mm w/ EP) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jul 8, 2021 - 21_0109 Assembly Site Transfer of Select LFCSP Products to ASE Korea |
||
| 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. |
||
| 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. |
||
| ADN2891ACPZ-500RL7 | ||
| ADN2891ACPZ-RL | ||
| ADN2891ACPZ-RL7 | ||
|
Oct 26, 2009 - 09_0202 Inclusion of Banding Tape for LFCSP REEL7 parts. |
||
| ADN2891ACPZ-500RL7 | ||
This is the most up-to-date revision of the Data Sheet.
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