DS1842
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DS1842

76V, APD, Bias Output Stage with Current Monitoring

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DS1842 Combines with DS1843 to Improve Integration and Lower Cost in APD Biasing

warning : NOT RECOMMENDED FOR NEW DESIGNS tooltip
warning : NOT RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 2
1ku List Price Starting From $1.80
Features
  • 76V Maximum Boost Voltage
  • Switch FET
  • Current Monitor with a Wide 1μA to 2mA Range, Fast 50ns Time Constant, and 10:1 and 5:1 Ratio
  • 2mA Current Clamp with External Shutdown
  • Multiple External Filtering Options
  • 3mm x 3mm, 14-Pin TDFN Package with Exposed Pad
Additional Details
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The DS1842 integrates the discrete high-voltage components necessary for avalanche photodiode (APD) bias and monitor applications. A switch FET is used in conjunction with an external DC-DC controller to create a boost DC-DC converter. A current clamp limits current through the APD and also features an external shutdown. The device also includes a dual current mirror to monitor the APD current.

Applications

  • APD Biasing
  • GPON Optical Network Unit and Optical Line Transmission
Part Models 2
1ku List Price Starting From $1.80

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
DS1842N+
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DS1842N+T&R
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Software & Part Ecosystem

Software & Part Ecosystem

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