DS1842
DS1842 is Bias Output Stage manufactured by Maxim Integrated.
19-4557; Rev 0; 4/09
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76V, APD, Bias Output Stage with Current Monitoring
General Description
The DS1842 integrates the discrete high-voltage ponents 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.
- 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
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