76V APD current monitor significantly reduces settling time for GPON modules

Maxim Integrated Products introduces the DS1842A 76V APD (avalanche photo diode), bias-output-stage, and current-monitoring IC.

MARCH 25, 2010 -- Maxim Integrated Products introduces the DS1842A 76V APD (avalanche photo diode), bias-output-stage, and current-monitoring IC.

By employing Maxim's CMOS process technology, the device integrates a high-voltage current source; several current mirrors for monitoring APD current; and a FET switch configured to work in conjunction with an external DC-DC controller to implement a boost DC-DC converter. The result is a faster settling time for GPON modules and a competitive cost in a small package. The DS1842A is well suited to providing bias to, and current monitoring for APDs in PON-OLT and PON-ONT equipment.

The DS1842A is specified over the -40 degrees Celsius to +85 degrees Celsius temperature range, and is available in a small 3mm x 3mm 14-pin TDFN with exposed pad. Pricing begins at $0.90 (1000-up, FOB USA).

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