MPY634

OBSOLETE MPY634 SBFS017A – DECEMBER 1995 – REVISED DECEMBER 2004 Wide Bandwidth PRECISION ANALOG MULTIPLIER FEATURES q WIDE BANDWIDTH: 10MHz typ q ±0.5% MAX FOUR-QUADRANT ACCURACY q INTERNAL WIDE-BANDWIDTH OP AMP q EASY TO USE q LOW COST APPLICATIONS q PRECISION ANALOG SIGNAL PROCESSING q MODULATION AND DEMODULATION q VOLTAGE-CONTROLLED AMPLIFIERS q VIDEO SIGNAL PROCESSING q VOLTAGE-CONTROLLED FILTERS AND OSCILLATORS DESCRIPTION The MPY634 is a wide bandwidth, high accuracy, fourquadrant analog multiplier. Its accurately laser-trimmed multiplier characteristics make it easy to use in a wide variety of applications with a minimum of external parts, often eliminating all external trimming. Its differential X, Y, and Z inputs allow configuration as a multiplier, squarer, divider, square-rooter, and other functions while maintaining high accuracy. The wide bandwidth of this new design allows signal processing at IF, RF, and video frequencies. The internal output amplifier of the MPY634 reduces design complexity compared to other high frequency multipliers and balanced modulator circuits. It is capable of performing frequency mixing, balanced modulation, and demodulation with excellent carrier rejection. An accurate internal voltage reference provides precise setting of the scale factor. The differential Z input allows user-selected scale factors from 0.1 to 10 using external feedback resistors. SF X1 V-I X2 Y1 V-I Y2 Z1 V-I Z2 Voltage Reference and Bias Multiplier Core +VS...