Low Cost
Analog Multiplier
Data Sheet
AD633
FEATURES FUNCTIONAL BLOCK DIAGRAM
X1
4-quadrant multiplication
1
X2
Low cost, 8-lead SOIC and PDIP packages
Completeno external components required A W
Laser-trimmed accuracy and stability
1
10V
Total error within 2% of full scale
Z
Differential high impedance X and Y inputs
Y1
1
High impedance unity-gain summing input
Y2
Laser-trimmed 10 V scaling reference
Figure 1.
APPLICATIONS
Multiplication, division, squaring
Modulation/demodulation, phase detection
Voltage-controlled amplifiers/attenuators/filters
GENERAL DESCRIPTION
The AD633 is a functionally complete, four-quadrant, analog The AD633 is available in 8-lead PDIP and SOIC packages. It is
multiplier. It includes high impedance, differential X and Y inputs, specified to operate over the 0C to 70C commercial temperature
and a high impedance summing input (Z). The low impedance range (J Grade) or the 40C to +85C industrial temperature
output voltage is a nominal 10 V full scale provided by a buried range (A Grade).
Zener. The AD633 is the first product to offer these features in
PRODUCT HIGHLIGHTS
modestly priced 8-lead PDIP and SOIC packages.
1. The AD633 is a complete four-quadrant multiplier offered
The AD633 is laser calibrated to a guaranteed total accuracy of
in low cost 8-lead SOIC and PDIP packages. The result is a
2% of full scale. Nonlinearity for the Y input is typically less
product that is cost effective and easy to apply.
than 0.1% and noise referred to the output is typically less than
2. No external components or expensive user calibration are
100 V rms in a 10 Hz to 10 kHz bandwidth. A 1 MHz bandwidth,
required to apply the AD633.
20 V/s slew rate, and the ability to drive capacitive loads make
3. Monolithic construction and laser calibration make the
the AD633 useful in a wide variety of applications where
device stable and reliable.
simplicity and cost are key concerns.
4. High (10 M) input resistances make signal source
The versatility of the AD633 is not compromised by its simplicity.
loading negligible.
The Z input provides access to the output buffer amplifier, enabling
5. Power supply voltages can range from 8 V to 18 V. The
the user to sum the outputs of two or more multipliers, increase internal scaling voltage is generated by a stable Zener diode;
the multiplier gain, convert the output voltage to a current, and multiplier accuracy is essentially supply insensitive.
configure a variety of applications. For further information, see
the Multiplier Application Guide.
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Last Content Update: 02/23/2017
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Data Sheet
AD633: Low Cost Analog Multiplier Data Sheet
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