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Low-noise, Wideband Voltage-controlled Amplifier with "Linear-in-dB" Gain

Low-power, low-distortion, constant-bandwidth AD600 and AD602 duals solve classic VCA problems using new principle

by Barrie Gilbert and Bob Clarke Download PDF

The AD600 and AD602* are dual-channel low-noise, low-distortion voltage-controlled amplifiers (VCAs). Both devices provide a nominal 40-dB gain range, with a 1-dB overrange at each end; for the AD600 the full range is -1 dB to +41 dB; for the AD602, it is -11 dB to +31 dB. Read full article

Authors

Barrie Gilbert

Barrie Gilbert, the first ADI Fellow, has “spent a lifetime in the pursuit of analog elegance.” He joined Analog Devices in 1972, was appointed ADI Fellow in 1979, and manages the Northwest Labs in Beaverton, Oregon. Barrie was born in Bournemouth, England, in 1937. Before joining ADI, he worked with first-generation transistors at SRDE in 1954, and at Mullard, Ltd.; later at Tektronix and Plessey Research Labs. Barrie is an IEEE Fellow (1984) and has received numerous awards. He has some 50 issued patents, has authored about 40 papers, is coauthor of several books, and is a reviewer for several journals. He was awarded an Honorary Doctorate of Engineering from Oregon State University in 1997.

Bob Clarke