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ADN2850:  DUAL 10-BIT PROGRAMMABLE NON-VOLATILE RESISTOR

The ADN2850 is a very low tempco, digitally controlled non-volatile resistor that facilitates assembly by replacing discrete resistors currently used to set laser diode driver parameters in fiber optic transmitter modules. The ADN2850's versatile programming via a Micro Controller allows multiple modes of operation and adjustment.

The ADN2850 can be used in all SONET, SDH, ATM and Gigabit ...More

ADN2850:  DUAL 10-BIT PROGRAMMABLE NON-VOLATILE RESISTOR

Product Description

The ADN2850 is a very low tempco, digitally controlled non-volatile resistor that facilitates assembly by replacing discrete resistors currently used to set laser diode driver parameters in fiber optic transmitter modules. The ADN2850's versatile programming via a Micro Controller allows multiple modes of operation and adjustment.

The ADN2850 can be used in all SONET, SDH, ATM and Gigabit Ethernet laser diode driver applications. This device can also be programmed for TEC controller calibration, APD calibration and optical power monitoring.

The ADN2850 operates from either a single power supply from +3 V to +5 V, or a ±2.5 V dual supply. It is available in 5mm x 5mm LFCSP-16 Lead Frame Chip Scale and thin TSSOP-16 packages.

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EVALUATION BOARDS & DEVELOPMENT KITS

  • 10-bit Resolution
  • 25 Ω, 250 Ω Terminal Resistance
  • Programmable Laser Calibration
  • 3 V to 5 V Single, ±2.5 V Dual Supply Operation
  • Nonvolatile memory for set-point storage and additional factory data
  • # Channels: 2
  • # Positions: 1024
  • Memory Type: Non-Volatile
  • Interface: SPI
  • Resistor Values (kOhms): 25, 250
  • Bipolar Voltage Range (V): ±3V
  • Voltage Range (V): +5.5V
  • Supply Current : 3.5µA
  • Temp. Range -40 °C to..: 85Deg
  • Absolute Tempco (ppm/°C): 35ppm/C
  • Package: LFCSP

Functional Block Diagram for ADN2850

ADN2850 Diagram
Functional Block Diagram for ADN2850

OF NOTE ...

For the opportunity to sample the ADN2850, please contact the High Speed Networking Group and include your name, title, company and a description of your application.

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For detailed drawings and chemical composition please consult our  Package Site

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  • Commercial: 0 to +70 degrees Celsius
  • Military : -55 to +125 degrees Celsius
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  • Automotive: -40 to +125 degrees Celsius
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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.