DS1842 Series

76V, APD, Bias Output Stage with Current Monitoring

Manufacturer: Analog Devices Inc./Maxim Integrated

Catalog

76V, APD, Bias Output Stage with Current Monitoring

Part	Package / Case	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Supplier Device Package	Function
Analog Devices Inc./Maxim Integrated DS1842N+T&R	14-WFDFN Exposed Pad	85 °C	-40 C	Surface Mount	14-TDFN (3x3)	Current Monitor
Analog Devices Inc./Maxim Integrated DS1842N+	14-WFDFN Exposed Pad	85 °C	-40 C	Surface Mount	14-TDFN (3x3)	Current Monitor

Catalog

76V, APD, Bias Output Stage with Current Monitoring

Description

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.ApplicationsAPD BiasingGPON Optical Network Unit and Optical Line Transmission