ADN2871
NOT RECOMMENDED FOR NEW DESIGNS3.3 V, 50 Mbps to 4.25 Gbps, Single-Loop, Laser Diode Driver
- Part Models
- 3
- 1ku List Price
- price unavailable
Part Details
- SFP/SFF and SFF-8472 MSA-compliant
- SFP reference design available
- 50 Mbps to 4.25 Gbps operation
- Automatic average power control
- Typical 60 ps rise/fall time
- VCSEL, DFB, and FP laser support
- Bias current range: 2 mA to 100 mA
- Modulation current range: 5 mA to 90 mA
- Laser fail alarm and automatic laser shutdown (ALS)
- Bias and modulation current monitoring
- 3.3 V supply
- 4 mm × 4 mm LFCSP
- Voltage setpoint control
- Resistor setpoint control
- Pin-compatible with ADN2870
The ADN2871 laser diode driver (LDD) is designed for advanced SFP and SFF modules, using SFF-8472 digital diagnostics. The ADN2871 supports operation from 50 Mbps up to 4.25 Gbps.
Average power and extinction ratios can be set with a voltage provided by a microcontroller DAC or by a trimmable resistor or digital potentiometer. The average power control loop is implemented using feedback from a monitor photodiode. The device provides bias and modulation current monitoring, as well as fail alarms and automatic laser shutdown (ALS). The device interfaces easily with the Analog Devices, Inc., ADuC7019 and ADuC7020 family of MicroConverter® devices and with the ADN2890, ADN2891, and ADN2892 family of limiting amplifiers to make a complete SFP/SFF transceiver solution. An SFP reference design is available.
The product is pin-compatible with the ADN2870 dual-loop LDD, allowing the same design to work with either device. For dual-loop control applications, refer to the ADN2870 data sheet. The product is available in a space-saving 4 mm × 4 mm LFCSP specified over the −40°C to +85°C temperature range.
Applications
- 1×/2×/4× Fibre Channel SFP/SFF modules
- Multirate OC3 to OC48-FEC SFP/SFF modules
- LX-4 modules
- DWDM/CWDM SFP modules
- 1GE SFP/SFF transceiver modules
- VCSEL, DFB, and FP transmitters
Documentation
Data Sheet 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 |
|---|---|---|---|
| ADN2871ACPZ | 24-Lead LFCSP (4mm x 5mm w/ EP) | ||
| ADN2871ACPZ-RL | 24-Lead LFCSP (4mm x 4mm w/ EP) | ||
| ADN2871ACPZ-RL7 | 24-Lead LFCSP (4mm x 5mm w/ EP) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jun 9, 2021 - 20_0126 Conversion of Select Sizes LFCSP Products from Punched to Sawn and Transfer of Assembly Site to ASE Korea |
||
| ADN2871ACPZ | ||
| ADN2871ACPZ-RL7 | ||
|
Sep 13, 2017 - 16_0077 CANCELLED: Conversion of Select 4x4, 5x5, 6x6 and 7x7mm LFCSP Package Outlines from Punch to Sawn and Transfer of Assembly Site to ASE Korea. |
||
| ADN2871ACPZ | ||
| ADN2871ACPZ-RL7 | ||
|
Jan 29, 2014 - 14_0014 ADI Corporate Obsolescence Notice-January 2014 (Standard Products) |
||
| ADN2871ACPZ-RL | Obsolete | |
This is the most up-to-date revision of the Data Sheet.
Evaluation Kits
ADN2871 Evaluation Board