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The MPY600 is a wide-bandwidth four-quadrantsignal mulTIplier. Its output voltage is equal to thealgebraic product of the X and Y input voltages. Forsignals up to 30MHz, the on-board output op ampprovides the complete mulTIplicaTIon funcTIon with alow-impedance voltage output. Differential currentoutputs extend multiplier bandwidth to 75MHz.The MPY600 offers improved performance comparedto common semiconductor modulator or multipliercircuits. It can be used for both two-quadrant (voltagecontrolledamplifier) and four-quadrant (doublebalanced)applications. While previous devicesrequired cumbersome circuitry for trimming, balanceand level-shifting, the MPY600 requires no externalcomponents. A single external resistor can be used toprogram the conversion gain for optimum spuriousfreedynamic range. When used as a modulator, carrierfeedthrough measures –60dB at 5MHz.Differential X, Y and Z inputs can be connected in avariety of useful configurations, including squarer,divider, and square-rooter circuits. The MPY600 isavailable in 16-pin plastic DIP, specified for the industrialtemperature range.
