Amplifiers from Analog Devices boost bandwidth

November 19, 2001--Analog Devices (Norwood, MA) today claims an IC breakthrough with the announcement of four junction field effect transistor (JFET) amplifiers designed to meet increasing demands for higher bandwidth in fiber optic applications, and to support higher optical channel density per fiber.

November 19, 2001--Analog Devices (Norwood, MA) today claims an IC breakthrough with the announcement of four junction field effect transistor (JFET) amplifiers designed to meet increasing demands for higher bandwidth in fiber optic applications, and to support higher optical channel density per fiber.

The new amplifiers are said to add unprecedented precision, low noise, and load drive performance, and are designed for use throughout optical networking equipment in such applications as laser diode control, control signal filtering, optical power level measurement, and mirror position sensing in all-optical systems.

Of the amplifiers announced, the AD8610 claims the lowest offset and highest accuracy of any JFET amplifier on the market, with only 100 microVolt maximum offset voltage and noise of only 6 nV/sq.rt.Hz. A dual version, the AD8620, featuring slightly adjusted specifications is in development.

The AD8510, AD8512, and AD8513 provide performance for cost-sensitive applications, featuring faster settling time, half the noise, smaller packaging, and twice the bandwidth of their predecessors in the AD711x family.

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