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ADN2830:  AVERAGE POWER CONTROLLER FOR CONTINUOUS WAVE (CW) LASER

The ADN2830 provides closed loop control of the average optical power of a continuous wave (CW) laser diode (LD) after initial factory setup. The control loop adjusts the laser Ibias to maintain a constant Back Facet Monitor Photo Diode (MPD) current and hence a constant laser optical power. The external PSET resistor is adjusted during factory set up to set the desired optical power. Programmable ...More

ADN2830:  AVERAGE POWER CONTROLLER FOR CONTINUOUS WAVE (CW) LASER

Product Description

The ADN2830 provides closed loop control of the average optical power of a continuous wave (CW) laser diode (LD) after initial factory setup. The control loop adjusts the laser Ibias to maintain a constant Back Facet Monitor Photo Diode (MPD) current and hence a constant laser optical power. The external PSET resistor is adjusted during factory set up to set the desired optical power. Programmable alarms are provided for laser fail (end of life) and laser degrade (impending fail).

The ADN2830 operates from a single power +5 V supply. It is available in 5mm x 5mm LFCSP-32 Lead Frame Chip Scale.

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EVALUATION BOARDS & DEVELOPMENT KITS

  • Bias Current Range 4 mA to 200 mA
  • Monitor Photodiode Current 50 µA to 1200 µA
  • Closed-loop Control of Average Power
  • Laser Fail and Laser Degrade Alarms
  • Automatic Laser Shutdown (ALS)
  • Current parameter monitoring
  • -40°C to +85°C Temperature Range
  • Voltage Supply (V): 5V
  • Single Ended/Differential: Single Ended
  • Package: 5x5 mm LFCSP
  • Laser Bias Current (mA): 200mA

Functional Block Diagram for ADN2830

ADN2830 Diagram
Functional Block Diagram for ADN2830

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*The USA 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. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
**Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.