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. Rev. K Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 2015 Analog Devices, Inc. All rights reserved. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. Technical Support www.analog.com 00786-023AD633 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Squaring and Frequency Doubling .............................................9 Applications ....................................................................................... 1 Generating Inverse Functions .....................................................9 Functional Block Diagram .............................................................. 1 Variable Scale Factor .................................................................. 10 General Description ......................................................................... 1 Current Output ........................................................................... 10 Product Highlights ........................................................................... 1 Linear Amplitude Modulator ................................................... 10 Revision History ............................................................................... 2 Voltage-Controlled, Low-Pass and High-Pass Filters ............ 10 Specifications ..................................................................................... 3 Voltage-Controlled Quadrature Oscillator ................................... 11 Absolute Maximum Ratings ............................................................ 4 Automatic Gain Control (AGC) Amplifiers ........................... 11 Thermal Resistance ...................................................................... 4 Model Results .................................................................................. 13 ESD Caution .................................................................................. 4 Examples of DC, Sin, and Pulse Solutions Using Multisim.. 13 Pin Configurations and Function Descriptions ........................... 5 Examples of DC, Sin, and Pulse Solutions Using PSPICE .... 14 Typical Performance Characteristics ............................................. 6 Examples of DC, Sin, and Pulse Solutions Using SIMetrix .. 14 Functional Description .................................................................... 8 Evaluation Board ............................................................................ 16 Error Sources................................................................................. 8 Outline Dimensions ....................................................................... 19 Applications Information ................................................................ 9 Ordering Guide .......................................................................... 20 Multiplier Connections ............................................................... 9 REVISION HISTORY Renumbered Sequentially ............................................................. 12 3/15Rev. J to Rev. K Changes to Ordering Guide .......................................................... 15 Changes to General Description Section ...................................... 1 Changes to Figure 12 Caption and Figure 14 Caption ................ 9 4/11Rev. G to Rev. H Added Model Results Section, Examples of DC, Sin, and Changes to Figure 1, Deleted Figure 2 ............................................ 1 Pulse Solutions Using Multisim Section, and Figure 24 Added Figure 2, Figure 3, Table 4, Table 5 ..................................... 5 Through Figure 29, Renumbered Sequentially........................... 13 Deleted Figure 9, Renumbered Subsequent Figures ..................... 6 Added Examples of DC, Sin, and Pulse Solutions Using Changes to Figure 15 ......................................................................... 9 PSPICE Section, Examples of DC, Sin, and Pulse Solutions 4/10Rev. F to Rev. G Using SIMetrix Section, and Figure 30 Through Figure 37 ...... 14 Changes to Equation 1 ...................................................................... 6 Added Figure 38 Through Figure 41 ........................................... 15 Changes to Equation 5 and Figure 14 ............................................. 7 Changes to Figure 21 ......................................................................... 9 9/13Rev. I to Rev. J Reorganized Layout ............................................................ Universal 10/09Rev. E to Rev. F Change to Table 1 ............................................................................. 3 Changes to Format ............................................................. Universal Changes to Figure 4 .......................................................................... 6 Changes to Figure 21 ......................................................................... 9 Added Figure 10, Renumbered Sequentially ................................ 7 Updated Outline Dimensions ....................................................... 11 Changes to Figure 15 ........................................................................ 9 Changes to Ordering Guide .......................................................... 12 Changes to Figure 20 ...................................................................... 10 Changes to Figure 31 ...................................................................... 14 10/02Rev. D to Rev. E Added Figure 32 .............................................................................. 15 Edits to Title of 8-Lead Plastic SOIC Package (RN-8) ................. 1 Edits to Ordering Guide ................................................................... 2 2/12Rev. H to Rev. I Change to Figure 13 .......................................................................... 7 Changes to Figure 1 .......................................................................... 1 Updated Outline Dimensions .......................................................... 8 Changes to Figure 2 .......................................................................... 5 Changes to Generating Inverse Functions Section ...................... 8 Changes to Figure 15 ........................................................................ 9 Added Evaluation Board Section and Figure 23 to Figure 29, Rev. K Page 2 of 20