Monolithic IC RMS-to-DC Converter

AD536K Laser-Trimmed to 0.2% Max Error; Needs No User Adjustment; Operates on Single or Dual Supply; dB and Linear Outputs Provided

The AD536 is the industry's first monolithic rms-to-dc converter. It permits the true-rms value of complex wideband ac and dc signals to be measured with errors less than 0.2% of reading ±2mV without external trim circuits. Its bandwidth, for signals greater than 0.1V rms, is 20kHz, for the above accuracy, and 100kHz for –3dB. Read full article

Authors

Lew Counts

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.

Dave Kress

David Kress earned both his BSCE and MSCE for the Massachusetts Institute of Technology. David was first a designer of medical electronic equipment before joining Analog Devices in 1972 as an IC designer. For many years David led ADI's technical support team, and he is currently the Director of Technical Marketing.