This part is a kind of semiconductor called AD633.

Function of this product has Low Cost Analog Multiplier.

Manufacturers : Analog Devices

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Data Sheet FEATURES 4-quadrant multiplication Low cost, 8-lead SOIC and PDIP packages Completeno external components required Laser-trimmed accuracy and stability Total error within 2% of full scale Differential high impedance X and Y inputs High impedance unity-gain summing input Laser-trimmed 10 V scaling reference APPLICATIONS Multiplication, division, squaring Modulation/demodulation, phase detection Voltage-controlled amplifiers/attenuators/filters GENERAL DESCRIPTION The AD633 is a functionally complete, four-quadrant, analog multiplier. It includes high impedance, differential X and Y inputs, and a high impedance summing input (Z). The low impedance output voltage is a nominal 10 V full scale provided by a buried Zener. The AD633 is the first product to offer these features in mo [ ... ]

AD633 PDF Datasheet Download