Re: multiplier IC
Use
MC1496 : Balanced Modulators/Demodulators
These devices were designed for use where the output voltage is a
product of an input voltage (signal) and a switching function (carrier).
Typical applications include suppressed carrier and amplitude
modulation, synchronous detection, FM detection, phase detection,
and chopper applications. See ON Semiconductor Application Note
AN531 for additional design information.
or
MC1494: Linear Four-Quadrant Multiplier
The MC1494 is designed for use where the output voltage is a linear
product of two input voltages. Typical applications include: multiply,
divide, square root, mean square, phase detector, frequency doubler,
balanced modulator/ demodulator, electronic gain control.
The MC1494 is a variable transconductance multiplier with internal
level−shift circuitry and voltage regulator. Scale factor, input offsets
and output offset are completely adjustable with the use of four
external potentiometers. Two complementary regulated voltages are
provided to simplify offset adjustment and improve power supply
rejection.