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Description

FULL DATA SHEET (PDF, 132kB) Download   E-Mail 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.

Key Features		Applications/Uses
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		APD Biasing GPON Optical Network Unit and Optical Line Transmission

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