Wideband 2-Channel Monolithic Analog Multiplier/Divider

AD539 Provides Linear, Logarithmic, Square-Law Gain Control, Signal Bandwidths to 60MHz, Control Bandwidth of 5MHz, with Low Distortion

Model AD539 is a fast, low-distortion analog multiplier-divider with two wideband signal channels controlled by common inputs providing either linear or logarithmic gain control. It is fabricated monolithically, using laser-trimmed thin-film resistors, and packaged in a 16-pin DIP. Read full article


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Barrie Gilbert

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.