Electronic Design
Current Monitor Enables Compact GPON ONTs/ONUs

Current Monitor Enables Compact GPON ONTs/ONUs

Promising to save space by eliminating the discrete high-voltage components required for APD biasing and current monitoring, the DS1842 APD bias output stage and current-monitor measures 3 mm x 3 mm in a 14-pin TDFN package. The device integrates a 76V current source and dual current mirrors. Other features include a FET switch that works in conjunction with an external dc/dc controller and an operating-temperature range from -40°C to +85°C. Pricing begins at $0.90 each/1,000. MAXIM INTEGRATED PRODUCTS, Sunnyvale, CA. (800) 998-8800.

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