Fun With Analog Multipliers

Need a frequency doubler? Want to plot a cubic function on your ‘scope? How about a square root extractor, or a voltage controlled amplifier? Analog multipliers make all this (and more) a snap!

Description Reference
Analog multiplier background and basics MT-079: Analog Multipliers, Analog Devices
A variety of multiplier applications and circuits ADI Multiplier Applications Guide, Analog Devices
How the Gilbert cell works Basics of the Gilbert Cell, W2AEW
Datasheet for the AD633 used in the video AD633 Datasheet, Analog Devices