AD633

Data Sheet FEATURES 4-quadrant multiplication Low cost, 8-lead SOIC and PDIP packages Complete—no 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 modestly priced 8-lead PDIP and SOIC packages. The AD633 is laser calibrated to a guaranteed total accuracy of 2% of full scale. Nonlinearity for the Y input is typically less than 0.1% and noise referred to the output is typically less than 100 µV rms in a 10 Hz to 10 kHz bandwidth. A 1 MHz bandwidth, 20 V/µs slew rate, and the ability to drive capacitive loads make the AD633 useful in a wide variety of applications where simplicity and cost are key concerns. The versatility of the AD633 is not compromised by its simplicity. The Z input provides access to the output buffer amplifier, enabling the user to sum the outputs of two or more multipliers, increase the multiplier gain, convert the outpu...