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TEXAS INSTRUMENTS - MPY634Wide Bandwidth PRECISION ANALOG MULTIPLIER handbook

1. Seating Plane 0 010 0 25 4040000 2 F 06 2004 NOTES A All linear dimensions are in inches millimeters B This drawing is subject to change without notice C Body dimensions do not include mold flash or protrusion not to exceed 0 006 0 15 D Falls within JEDEC MS 013 variation AA Texas INSTRUMENTS www ti com IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries Tl reserve the right to make corrections modifications enhancements improvements and other changes to its products and services at any time and to discontinue any product or service without notice Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete All products are sold subject to Tl s terms and conditions of sale supplied at the time of order acknowledgment TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with Tl s standard warranty Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty Except where mandated by government requirements testing of all parameters of each product is not necessarily performed TI assumes no liability for applications assistance or customer product design Customers are responsible for their products and applications using Tl components To minimize the risks associated
2. NC SOIC MPY634KU ORDERING INFORMATION Basic Model Number Performance Grade K U 40 C to 85 C Package Code P Plastic 14 pin DIP U 16 pin SOIC NOTE 1 Performance grade identifier may not be marked on the SOIC package a blank denotes K grade TEXAS INSTRUMENTS www ti com TYPICAL PERFORMANCE CURVES At T 25 C V 15VDC unless otherwise noted FEEDTHROUGH vs FREQUENCY FREQUENCY RESPONSE AS A MULTIPLIER 20 10 PN C 1000pF Em Normal Connection lt 40 S 0 o a T o E 2 C OpF 2 X Feedthrough Q amp 60 9 10 dl E With X10 Feedback Y Feedthrough 5 Attenuator S 80 O 20 o LL 100 30 100 1k 10k 100k 1M 10M 100M 1k 10k 100k 1M 10M 100M Frequency Hz Frequency Hz COMMON MODE REJECTION RATIO vs FREQ
3. TAPE AND REEL INFORMATION REEL DIMENSIONS Reel Diameter Y SEE 4 Reel Width W1 QUADRANT ASSIGNMENTS FOR PIN 1 ORIENTATION IN TAPE PACKAGE MATERIALS INFORMATION TAPE DIMENSIONS Dimension designed to accommodate the component width Dimension designed to accommodate the component length Dimension designed to accommodate the component thickness Overall width of the carrier tape Pitch between successive cavity centers Sprocket Holes User Direction of Feed All dimensions are nominal 11 Mar 2008 Device Package Package Pins MPY634KUAK SOIC DW 1000 330 0 16 4 6 5 10 3 2 1 Pack Materials Page 1 X3 Texas PACKAGE MATERIALS INFORMATION INSTRUMENTS www ti com 11 Mar 2008 TAPE AND REEL BOX DIMENSIONS All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length mm Width mm Height mm MPY634KU 1K SOIC DW 16 1000 375 0 340 0 57 0 Pack Materials Page 2 MECHANICAL DATA MMBC006 MARCH 2001 TEXA INSTRUMENTS DW R PDSO C16 PLASTIC SMALL OUTLINE PACKAGE Pin 1 0 020 0 51 0 050 1 27 Index Area SEA 0 012 0 31 4 0 010 0 25 L 0 104 2 65 Max CN 0 004 0 10 Gauge Plane
4. 5 Square Rooter Connection APPLICATIONS A sin 2r 10MHz t 15V 1kO Vo AB 20 cos 6 B sin 2r 10MHz t 6 Multiplier connection followed by a low pass filter forms phase detector useful in phase locked loop circuitry Ry is often used in PLL circuitry to provide desired loop damping characteristics FIGURE 6 Phase Detector OPA606 15V Minor gain adjustments are accomplished with the 1kQ variable resistor connected to the scale factor adjustment pin SF Bandwidth of this circuit is limited by A which is operated at relatively high gain FIGURE 7 Voltage Controlled Amplifier i TEXAS MPY634 INSTRUMENTS SBFS017A www ti com Modulation Input E O X Vs X Out rO MPY634 Vour 10V sine MPY634 Where SF i 6 1 2 Eg 10V Carrier Input Ec sin ot Vour mi 1 Ey 10V Ec sin ot Input Eg 0 to 10V By injecting the input carrier signal into the output through connection to the Z input conventional amplitude modulation is achieved Amplification can be achieved by use of the SF pin or Z attenuator at the expense of bandwidth With a linearly changing 0 10V input this circuit s output follows 0 to 90 of a sine function with a 10V peak output amplitude FIGURE 8 Sine Function Generator FIGURE 9 Linear AM Modulator A 20 cos 2 c t Frequency Doubler Squaring a sinusoidal input creates an output freq
5. with customer products and applications customers should provide adequate design and operating safeguards TI does not warrant or represent that any license either express or implied is granted under any TI patent right copyright mask work right or other TI intellectual property right relating to any combination machine or process in which TI products or services are used Information published by TI regarding third party products or services does not constitute a license from TI to use such products or services or a warranty or endorsement thereof Use of such information may require a license from a third party under the patents or other intellectual property of the third party or a license from TI under the patents or other intellectual property of TI Reproduction of TI information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties conditions limitations and notices Reproduction of this information with alteration is an unfair and deceptive business practice TI is not responsible or liable for such altered documentation Information of third parties may be subject to additional restrictions Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice
6. 0C 168 HR no Sb Br MPY634KUE4 ACTIVE SOIC DW 16 48 Green RoHS 8 CU NIPDAU Level 3 260C 168 HR no Sb Br The marketing status values are defined as follows ACTIVE Product device recommended for new designs LIFEBUY TI has announced that the device will be discontinued and a lifetime buy period is in effect NRND Not recommended for new designs Device is in production to support existing customers but TI does not recommend using this part in a new design PREVIEW Device has been announced but is not in production Samples may or may not be available OBSOLETE TI has discontinued the production of the device 2 Eco Plan The planned eco friendly classification Pb Free RoHS Pb Free RoHS Exempt or Green RoHS amp no Sb Br please check http www ti com productcontent for the latest availability information and additional product content details TBD The Pb Free Green conversion plan has not been defined Pb Free RoHS Tl s terms Lead Free or Pb Free mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances including the requirement that lead not exceed 0 196 by weight in homogeneous materials Where designed to be soldered at high temperatures TI Pb Free products are suitable for use in specified lead free processes Pb Free RoHS Exempt This component has a RoHS exemption for either 1 lead based flip chip solder bumps used between the die and package or 2 lead
7. Burr Brown Products from Texas Instruments MPY634 e SBFS017A DECEMBER 1995 REVISED DECEMBER 2004 Wide Bandwidth PRECISION ANALOG MULTIPLIER FEATURES WIDE BANDWIDTH 10MHz typ 6 0 5 MAX FOUR QUADRANT ACCURACY INTERNAL WIDE BANDWIDTH OP AMP EASY TO USE LOW COST APPLICATIONS PRECISION ANALOG SIGNAL PROCESSING MODULATION AND DEMODULATION VOLTAGE CONTROLLED AMPLIFIERS VIDEO SIGNAL PROCESSING VOLTAGE CONTROLLED FILTERS AND OSCILLATORS DESCRIPTION The MPY634 is a wide bandwidth high accuracy four quadrant analog multiplier Its accurately laser trimmed multiplier characteristics make it easy to use in a wide variety of applications with a minimum of external parts often eliminating all external trimming Its differential X Y and Z inputs allow configuration as a multiplier squarer divider square rooter and other functions while maintain ing high accuracy The wide bandwidth of this new design allows signal processing at IF RF and video frequencies The internal output amplifier of the MPY634 reduces design complexity compared to other high frequency mul tipliers and balanced modulator circuits It is capable of performing frequency mixing balanced modula tion and demodulation with excellent carrier rejection An accurate internal voltage reference provides precise setting of the scale factor The differential Z input allows user selected scal
8. Specification Storage Specification same as for MPY634AM Gray indicates obsolete parts NOTES 1 Figures given are percent of full scale 10V i e 0 01 1mV 2 May be reduced to 3V using external resistor between V and SF 3 Irreducible component due to nonlinearity excludes effect of offsets PIN CONFIGURATIONS Top View TO 100 MPY634AM BM SM X Input X Input NC Scale Factor NC Y Input Yo Input DIP MPY634KP ABSOLUTE MAXIMUM RATINGS MPY634KP KU _MPY634SM PARAMETER MPY634AM BM MPY634KP KU OBSOLETE 18 500mW Power Supply Voltage Power Dissipation Output Short Circuit to Ground Input Voltage all X Y and Z Vs Temperature Range Operating Storage Lead Temperature soldering 10s SOIC KU Package Indefinite 25 C 85 C 65 C 150 C 300 C Specification same as for MPY634AM BM NOTE Gray indicates obsolete parts PACKAGE INFORMATION 40 C 85 C 55 C 125 C 40 C 85 C E 260 C PACKAGE DRAWING PRODUCT PACKAGE NUMBER MPY634KP 14 Pin PDIP 010 MPY634KU 16 Pin SOIC 211 NOTE 1 For the most current package and ordering information see the Package Option Addendum located at the end of this data sheet MPY634 SBFS017A X Input Vs X Input NC NC Output Scale Factor Z4 Input NC Z Input Y Input NC Y Input Vs NC Vs NC Output Z Input Z Input NC Vs
9. TI is not responsible or liable for any such statements TI products are not authorized for use in safety critical applications such as life support where a failure of the TI product would reasonably be expected to cause severe personal injury or death unless officers of the parties have executed an agreement specifically governing such use Buyers represent that they have all necessary expertise in the safety and regulatory ramifications of their applications and acknowledge and agree that they are solely responsible for all legal regulatory and safety related requirements concerning their products and any use of TI products in such safety critical applications notwithstanding any applications related information or support that may be provided by TI Further Buyers must fully indemnify TI and its representatives against any damages arising out of the use of TI products in such safety critical applications TI products are neither designed nor intended for use in military aerospace applications or environments unless the TI products are specifically designated by TI as military grade or enhanced plastic Only products designated by TI as military grade meet military specifications Buyers acknowledge and agree that any such use of TI products which TI has not designated as military grade is solely at the Buyer s risk and that they are solely responsible for compliance with all legal and regulatory requirements in connection with such use TI prod
10. UENCY FEEDTHROUGH vs TEMPERATURE 90 80 70 Typical for all inputs zT i _ 60 E S 2 z 50 E lt Z 40 lt O S 30 e 5 lled at 25 C 20 E o LL 10 0 100 10k 100M 1M 10M 60 40 20 0 20 40 60 80 100 120 140 Frequency Hz Temperature C NOISE SPECTRAL DENSITY vs FREQUENCY FREQUENCY RESPONSE AS A DIVIDER 1 5 60 gt Vy 100mVDC Vz 10mVrms gt 12 40 m 2 Vy 1VDC 5 2 Vz 100mVrms a 1 gt 20 S 5 5 amp Vy 10VDC a Vz 100mVrms o 0 75 0 E o 0 5 20 10 100 1k 10k 100k 1k 10k 100k 1M 10M 100M Frequency Hz Frequency Hz ki TEXAS 4 INSTRUMENTS MPY634 www ti com SBFS017A TYPICAL PERFORMANCE CURVES CONT T 25 C V 15VDC unless otherwise noted INPUT OUTPUT SIGNAL RANGE vs SUPPLY VOLTAGES Output R gt 2kQ All inputs SF 10V Peak Positive or Negative Signal V Positive or Negative Supply V THEORY OF OPERATION The transfer function for the MPY634 is X X Y Y Vour 2 A 1 a 1 2 Z Z where A open loop gain of the output amplifier typically 85dB at DC SF Scale Factor Laser trimmed to 10V but adjustable over a 3V to 10V range using external resistors X Y Z are input voltages Full scale input voltage is equal to the selected SF Max input voltage 1 25 SF An intuitive understanding of transfer function can be gained by analogy to the op amp By assuming that the open loop gain A of
11. an attendant reduc tion of input and output range capability Operation at voltages greater than 15V allows greater output swing to be achieved by using an output feedback attenuator Figure 1 As with any wide bandwidth circuit the power supplies should be bypassed with high frequency ceramic capacitors These capacitors should be located as near as practical to the power supply connections of the MPY634 Improper by passing can lead to instability overshoot and ringing in the output X Input O X VS 10V FS 12V PK Vout 12V PK X X2 Y4 Y Scale 1V X Out 9 O MPY634 ma Optional Peaking L Capacitor Cp 200pF FIGURE 1 Connections for Scale Factor of Unity BASIC MULTIPLIER CONNECTION Figure 2 shows the basic connection as a multiplier Accu racy is fully specified without any additional user trimming circuitry Some applications can benefit from trimming of one or more of the inputs The fully differential inputs facilitate referencing the input quantities to the source volt age common terminal for maximum accuracy They also allow use of simple offset voltage trimming circuitry as shown on the X input The differential Z input allows an offset to be summed in Vour In basic multiplier operation the Z input serves as the output voltage ground reference and should be connected to the ground of the driven system for maximum accuracy A method of changi
12. based die adhesive used between the die and leadframe The component is otherwise considered Pb Free RoHS compatible as defined above Green RoHS amp no Sb Br TI defines Green to mean Pb Free RoHS compatible and free of Bromine Br and Antimony Sb based flame retardants Br or Sb do not exceed 0 196 by weight in homogeneous material 3 MSL Peak Temp The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications and peak solder temperature Important Information and Disclaimer The information provided on this page represents TI s knowledge and belief as of the date that it is provided Tl bases its knowledge and belief on information provided by third parties and makes no representation or warranty as to the accuracy of such information Efforts are underway to better integrate information from third parties TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals TI and TI suppliers consider certain information to be proprietary and thus CAS numbers and other limited information may not be available for release In no event shall TI s liability arising out of such information exceed the total purchase price of the TI part s at issue in this document sold by TI to Customer on an annual basis Addendum Page 1 X3 Texas INSTRUMENTS www ti com
13. e factors from 0 1 to 10 using external feedback resistors Voltage Reference and Bias O VS Multiplier 0 75 Atten A All trademarks are the property of their respective owners O Vs Transfer Function X X2 Y Y2 Vour A SF A 2 O Vour Precision Output Op Amp Please be aware that an important notice concerning availability standard warranty and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet PRODUCTION DATA information is current as of publication date Products conform to specifications per the terms of Texas Instruments 1 standard warranty Production processing does not necessarily include testing of all parameters Copyright 1995 2004 Texas Instruments Incorporated TEXAS INSTRUMENTS www ti com SPECIFICATIONS ELECTRICAL At T 25 C and V 15VDC unless otherwise noted MPY634KP KU MIN MAX MULTIPLIER PERFORMANCE Transfer Function Total Error 10V x X Y 10V T min to max Total Error vs Temperature Scale Factor Error SF 10 000V Nominal 2 Temperature Coefficient of Scaling Voltage Supply Rejection 15V 1V Nonlinearity X X 20Vp p Y 10V Y Y 20Vp p X 10V Feedthrough 9 X Y Nulled X 20Vp p 50Hz Y X Nulled Y 20Vp p 50Hz Both Inputs 500kHz 1Vrms Unnulled Nulled Output Offset Voltage Output Offset Volta
14. ge Drift DYNAMICS Small Signal BW Vour 0 1Vrms 1 Amplitude Error Cioap 1000pF Slew Rate Voyr 20Vp p Settling Time to 1 AVoyr 20V NOISE Noise Spectral Density SF 10V Wideband Noise f 10Hz to 5MHz f 10Hz to 10kHz OUTPUT Output Voltage Swing Output Impedance f lt 1kHz Output Short Circuit Current R 0 T min to max Amplifier Open Loop Gain f 50Hz INPUT AMPLIFIERS X Y and Z Input Voltage Range Differential Vin Voy 0 Common Mode Vy Vpier 0 see Typical Performance Curves Offset Voltage X Y Offset Voltage Drift X Y Offset Voltage Z Offset Voltage Drift Z CMRR Bias Current Offset Current Differential Resistance DIVIDER PERFORMANCE Transfer Function X gt Xo Total Error untrimmed X 10V 10V lt Z 10V X 21V 1V lt Z lt 1V 0 1Vs X lt 10V 10V lt Z lt 10V SQUARE PERFORMANCE Transfer Function Total Error 10V lt X x 10V TEXAS INSTRUMENTS www ti com MPY634 SBFS017A SPECIFICATIONS coNT ELECTRICAL At T 25 C and V 15VDC unless otherwise noted MPY634KP KU MODEL MIN SQUARE ROOTER PERFORMANCE Transfer Function Z lt Z Total Error 1V lt Z lt 10V TYP MAX vini A v LJ a ww T Tve max unns POWER SUPPLY Supply Voltage Rated Performance Operating Supply Current Quiescent TEMPERATURE RANGE
15. m 1 0 to 2 5 for a 10 to 1 denominator range depending on device grade Accuracy is primarily limited by input offset voltages and can be significantly improved by trimming the offset of the X input A trim voltage of 3 5mV applied to the low side X input X for positive input voltages on Xj can produce similar accuracies over 100 to 1 denominator range To trim apply a signal which varies from 100mV to 10V at a low frequency less than 500Hz An offset sine wave or ramp is suitable Since the ratio of the quantities should be constant the ideal output would be a constant 10V Using AC coupling on an oscilloscope adjust the offset control for minimum output voltage variation SQUARE ROOTER A square rooter connection is shown in Figure 5 Input voltage is limited to one polarity positive for the connection shown The diode prevents circuit latch up should the input go negative The circuit can be configured for negative input and positive output by reversing the polarity of both the X and Y inputs The output polarity can be reversed by revers ing the diode and X input polarity A load resistance of approximately 10kQ must be provided Trimming for im proved accuracy would be accomplished at the Z input Output 12V PK Vour V10V Z Z X 9 Reverse this and X inputs Must be for provided Negative Outputs R Optional Summing Input X 10V PK FIGURE
16. ng lowering SF by connecting to the SF pin was discussed previously Figure 1 shows an alterna tive method of changing the effective SF of the overall circuit by using an attenuator in the feedback connection to Z4 This method puts the output amplifier in a higher gain and is thus accompanied by a reduction in bandwidth and an X Input O X Vs 10V FS 12V PK X Out O Vout 12V PK X X2 Y Y2 10V MPY634 Z O _ Optional Summing Y Input o o 15v Input 10VFS Z 10V PK 1 LL 12VPK Trim Circuit FIGURE 2 Basic Multiplier Connection increase in output offset voltage The larger output offset may be reduced by applying a trimming voltage to the high impedance input Z gt The flexibility of the differential Z inputs allows direct conversion of the output quantity to a current Figure 3 shows the output voltage differentially sensed across a se ries resistor forcing an output controlled current Addition of a capacitor load then creates a time integration function useful in a variety of applications such as power computa tion X Input O O 15V 10V FS 12V PK lage X1 Xo Y 7 Yo Current i Y Integrator Capacitor see text Sensing Resistor Y Input o 0 15v Rs ko 10V FS min 12V PK FIGURE 3 Conversion of Output to Current SQUARER CIRCUIT FREQUENCY DOUBLER Squarer or frequency doubler operation is achieved by paralleli
17. ng the X and Y inputs of the standard multiplier circuit Inverted output can be achieved by reversing the differential input terminals of either the X or Y input Accuracy in the squaring mode is typically a factor of two better than the specified multiplier mode with maximum error occurring with small less than 1V inputs Better accuracy can be achieved for small input voltage levels by reducing the scale factor SF DIVIDER OPERATION The MPY634 can be configured as a divider as shown in Figure 4 High impedance differential inputs for the numera tor and denominator are achieved at the Z and X inputs i TEXAS 6 INSTRUMENTS MPY634 www ti com SBFS017A respectively Feedback is applied to the Y input and Y is normally referenced to output ground Alternatively as the transfer function implies an input applied to Y can be summed directly into VouT Since the feedback connection is made to a multiplying input the effective gain of the output op amp varies as a function of the denominator input voltage Therefore the bandwidth of the divider function is proportional to the denominator voltage see Typical Perfor mance Curves Output 12V PK X Input O 15V Denominator V 10V Z5 Z4 QUET Lo var 0 1V x X x 10V X Xp Ya a Z Input Numerator 10V FS 12V PK Optional Summing Input 10V PK O FIGURE 4 Basic Divider Connection Accuracy of the divider mode typically ranges fro
18. the output operational amplifier is infinite MPY634 SBFS017A inspection of the transfer function reveals that any V oyr can be created with an infinitesimally small quantity within the brackets Then an application circuit can be analyzed by assigning circuit voltages for all X Y and Z inputs and setting the bracketed quantity equal to zero For example the basic multiplier connection in Figure 1 Z VouT and Z 0 The quantity within the brackets then reduces to X X Y Y SF This approach leads to a simple relationship which can be solved for V oyr to provide the closed loop transfer function The scale factor is accurately factory adjusted to 10V and is typically accurate to within 0 1 or less The scale factor may be adjusted by connecting a resistor or potentiometer between pin SF and the Vs power supply The value of the external resistor can be approximated by TEXAS INSTRUMENTS WWW ti com 10 SF Internal device tolerances make this relationship accurate to within approximately 2596 Some applications can benefit from reduction of the SF by this technique The reduced input bias current noise and drift achieved by this technique can be likened to operating the input circuitry in a higher gain thus reducing output contributions to these effects Adjustment of the scale factor does not affect bandwidth The MPY634 is fully characterized at VS 15V but operation is possible down to 8V with
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20. uency of twice that of the input The DC output component is removed by AC coupling the output Input Signal 20Vp p 200kHz Output Signal 10Vp p 400kHz Modulation Input XEy O 470kQ MPY634 Carrier SF Z Null Carrier Input Ec sin ot The basic muliplier connection performs balanced modulation Carrier rejection can be improved by trimming the offset voltage of the modulation input Better carrier rejection above 2MHz is typically achieved by interchanging the X and Y inputs carrier Carrier f 2MHz Amplitude 1Vrms applied to the X input Signal f 120kHz Amplitude 10V peak FIGURE 11 Balanced Modulator i TEXAS 8 INSTRUMENTS MPY634 www ti com SBFS017A K Texas PACKAGE OPTION ADDENDUM INSTRUMENTS www ti com 22 Oct 2007 PACKAGING INFORMATION Orderable Device Status Package Package Pins Package Eco Plan Lead Ball Finish MSL Peak Temp Type Drawing Qty MPY634AM OBSOLETE TO 100 LME 10 TBD Call TI Call TI MPY634BM OBSOLETE TO 100 LME 10 TBD Call TI Call TI MPY634KP ACTIVE PDIP N 14 25 Green RoHS amp CU NIPDAU N A for Pkg Type no Sb Br MPY634KPG4 ACTIVE PDIP N 14 25 Green RoHS 8 CUNIPDAU N A for Pkg Type no Sb Br MPY634KU ACTIVE SOIC DW 16 48 Green RoHS 8 CU NIPDAU Level 3 260C 168 HR no Sb Br MPY634KU 1K ACTIVE SOIC DW 16 1000 Green RoHS 8 CU NIPDAU Level 3 260C 168 HR no Sb Br MPY634KU 1KE4 ACTIVE SOIC DW 16 1000 Green RoHS amp CU NIPDAU Level 3 26

TEXAS INSTRUMENTS - MPY634Wide Bandwidth PRECISION ANALOG MULTIPLIER handbook

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