EL4083C EL4083C Current Mode Four Quadrant Multiplier Features General Description # Novel current mode design Virtual ground current summing inputs Differential ground referenced current outputs # High speed (both inputs) 200 MHz bandwidth 12 ns 1% settling time # Low distortion THD k 0.03% @ 1 MHz THD k 0.1% @ 10 MHz # Low noise (RL e 50X) 100 dB dynamic range 10 Hz to 20 kHz 73 dB dynamic range 10 Hz to 10 MHz # Wide supply conditions g 5 to g 15V operation Programmable bias current # 0.2 dB gain tolerance to 25 MHz The 4083C makes use of an Elantec fully complimentary oxide isolated bipolar process to produce a patent pending current in, current out four quadrant multiplier. Input and output signal summing and direct interface to other current mode devices can be accomplished by simple connection to reduce component count and preserve bandwidth. The selection of an appropriate series resistor value allows an input to accept a voltage signal of any size and optimize dynamic range. The differential outputs offer significant performance improvements which greatly extend the usable gain control range at high frequencies. The bias current is programmable to accommodate the voltage and power dissipation constraints of the package and available systems supplies. Applications Connection Diagram EL4083 8-Pin SO/P DIP 4083 – 1 Top View Ordering Information Part No. Temp. Range Package OutlineÝ EL4083CN b 40§ C to a 85§ C 8-Pin P-DIP MDP0031 EL4083CS b 40§ C to a 85§ C 8-Pin SO MDP0027 Manufactured under U.S. Patent No. 5,389,840 Note: All information contained in this data sheet has been carefully checked and is believed to be accurate as of the date of publication; however, this data sheet cannot be a ‘‘controlled document’’. Current revisions, if any, to these specifications are maintained at the factory and are available upon your request. We recommend checking the revision level before finalization of your design documentation. © 1993 Elantec, Inc. December 1995 Rev B # Four quadrant multiplication # Gain control # Controlled signal summing and multiplexing # HDTV video fading and switching # Mixing/modulating/ demodulating (phase detection) # Frequency doubling # Division # Squaring # Square rooting # RMS and power measurement # Vector addition-RMS summing # CRT focus and geometry correction # Polynomial function generation # AGC circuits The devices can implement all the classic four quadrant multiplier applications and are uniquely well suited to gain control and signal summing of broadband signals. EL4083C Current Mode Four Quadrant Multiplier Absolute Maximum Ratings (TA e 25§ C) VS IZ(BIAS) IX IY PD TA TJ a 33V Voltage between VS a and VSb a 2.4 mA Z, Bias Current g 2.4 mA X Input Current g 2.4 mA Y Input Current Maximum Power Dissipation See Curves Operating Temperature Range b 40§ C to a 85§ C EL4083 Operating Junction Temperature EL4083 150§ C b 65§ C to a 150§ C TST Storage Temperature Important Note: All parameters having Min/Max specifications are guaranteed. The Test Level column indicates the specific device testing actually performed during production and Quality inspection. Elantec performs most electrical tests using modern high-speed automatic test equipment, specifically the LTX77 Series system. Unless otherwise noted, all tests are pulsed tests, therefore TJ e TC e TA. Test Level I II Test Procedure 100% production tested and QA sample tested per QA test plan QCX0002. 100% production tested at TA e 25§ C and QA sample tested at TA e 25§ C , TMAX and TMIN per QA test plan QCX0002. QA sample tested per QA test plan QCX0002. Parameter is guaranteed (but not tested) by Design and Characterization Data. Parameter is typical value at TA e 25§ C for information purposes only. III IV V Electrical Characteristics (TA e 25§ C, VS e g 5, IZ e 1.6 mA) unless otherwise specified Parameter Conditions Min Test Level Units I I I I I V mA mA mA mA I I IV I III I I %FS %FS %FS MHz %FS %FS b 80 b 28 V V dB dB b 50 V dB b 64 b 26 V V dB dB b 50 V dB Typ Max Power Supplies Operating Supply Voltage Range ICC ICC IEE IEE g 4.5 VS VS VS VS e e e e g 15V, IZ e 0.2 mA g 5V, IZ e 1.6 mA g 15V, IZ e 0.2 mA g 5V, IZ e 1.6 mA g 16.5 7.2 42.0 9.5 45 8.5 44.0 10.0 47 9.5 45 12 48 0.92 0.965 g 0.5 g 1.5 0.25 225 0.15 0.15 1.01 g2 g3 0.5 Multiplier Performance AC Feedthrough, X to (IXY – IXY) (Note 4) AC Feedthrough, Y to IXY or IXY (Note 4) AC Feedthrough, Y to (IXY – IXY) (Note 4) (IXY –IXY) e K(IX c IY)/IZ b 2 mA k IX, IY k 2 mA TMIN to TMAX b 3 dB (See Figure 2) IX e g 2 mA, IY e 0 (unnulled) IY e g 2 mA, IX e 0 (unnulled) IX e 4 mApp, IY e nulled f e 3.58 MHz f e 100 MHz IX e 4 mApp, IY e nulled DC k f k 1 GHz IY e 4 mApp, IX e nulled f e 3.58 MHz f e 100 MHz IY e 4 mApp, IX e nulled DC k f k 1 GHz 2 200 1.6 1.6 TD is 3.7in Transfer Function (Note 5) K Value Total Error (Note 1) vs. Temp Linearity (Note 2) Bandwidth (Note 3) X Feedthrough DC to IXY or IXY (Note 5) Y Feedthrough DC to IXY or IXY (Note 5) AC Feedthrough, X to IXY or IXY (Note 4) EL4083C Current Mode Four Quadrant Multiplier Electrical Characteristics Ð Contd. (TA e 25§ C, VS e g 5, IZ e 1.6 mA) unless otherwise specified Parameter Conditions Min Typ Max Test Level Units Inputs (IX, IY) Full Scale Range Clipping Level ZIN (IX) ZIN (IY) Input Offset Voltages (VOSX,VOSY) Input Offset Currents (Note 5) IXOS, IYOS Nonlinearity IX IY Distortion, IX (to IXY or IXY) Distortion, IY (to IXY or IXY) Distortion, IX (to (IXY b IXY) Distortion, IY (to (IXY b IXY) Diff Gain IX IY IX IY Diff Phase IX IY IX IY FRS e 1.25 c IZ (Nominal) CL e 2 c IZ at Input Pins, IZ e 1.6 mA IZ e 0.2 mA RSX e RSY e 1K, VX e VY e 0, TMIN to TMAX g2 2.85 30 30 b4 b 12 I V mA mA X X mV mV mA nA/§ C I I %FS %FS b 55 b 25 V V dB dB b 56 b 26 V V dB dB b 66 b 35 V V dB dB b 66 b 34 V V dB dB 0.2 0.17 0.1 0.05 V V V V % % % % 0.5 0.5 0.05 0.05 V V V V deg § deg § deg § deg § I I V I mA mA V mA V pA/rootHz I I I mA mV mV 3.2 40 36 g 10 g 20 IY e 2 mA, b 2 mA k IX k 2 mA IX e 2 mA, b 2 mA k IY k 2 mA IY e 2 mA, b 2 mA k IX k 2 mA f e 3.58 MHz f e 100 MHz IX e 2 mA, b 2 mA k Iy k 2 mA f e 3.58 MHz f e 100 MHz IY e 2 mA, b2 mA k IX k 2 mA f e 3.58 MHz f e 100 MHz IX e 2 mA, b2 mA k IY k 2 mA f e 3.58 MHz f e 100 MHz @ 3.58 MHz IZ e 0.2 mA, IY e 0.25 mA IZ e 0.2 mA, IX e 0.25 mA IZ e 1.6 mA, IY e 2 mA IZ e 1.6 mA, IX e 2 mA @ 3.58 MHz IZ e 0.2 mA, IY e 0.25 mA IZ e 0.2 mA, IX e 0.25 mA IZ e 1.6 mA, IY e 2 mA IZ e 1.6 mA, IX e 2 mA 0.1 0.1 48 48 a4 a 12 g 40 0.6 0.4 I I I I Output IOS (Note 5) Diff Output IOS (Note 5) Voltage Compliance Max Output Current Swing Noise Spectral Density 10 Hz k f k 10 MHz IX e IY e 0 IX e IY e 0, (IXY –IXY) b 15 g 1.5 g 2.85 RL e 50X g 0.1 g 2.0 g 3.2 g 120 g 80 125 IZ (Bias) Current Range Input Voltage Input Voltage Tested IZ e 0.2 mA IZ e 1.6 mA 0.2 1.6 g 25 g 25 Note 1: Error is defined as the maximum deviation from the ideal transfer function expressed as a percentage of the full scale output. Note 2: Linearity is defined as the error remaining after compensating for scale factor (gain) variation and input and output referred offset errors. Note 3: Bandwidth is guaranteed using the squaring mode test circuit of Figure 4. Note 4: Relative to full scale output with full scale sinewave on signal input and zero port input nulled. Specification represents feedthrough of the fundamental. Note 5: Specifications are provisional for the EL4083. 3 TD is 5.8in Outputs (IXY, IYX) EL4083C Current Mode Four Quadrant Multiplier EL4083 Block Diagram 4083 – 3 Figure 1 4 EL4083C Current Mode Four Quadrant Multiplier AC Test Fixture 4083 – 4 Figure 2. AC Bandwidth Test Fixture Burn-In Circuit Top View 4083 – 5 Figure 3. Burn-In Circuit P-DIP 5 EL4083C Current Mode Four Quadrant Multiplier 8-Pin Plastic DIP Maximum Power Dissipation vs Ambient Temperature 8-Lead SO Maximum Power Dissipation vs Ambient Temperature 4083 – 6 4083 – 7 Figure 4 Figure 5 4083 – 10 4083 – 11 Figure 6. (IX, IY Bandwidth vs IZ) Figure 7. (IX, IY 1% Settling Time vs IZ) 6 EL4083C Current Mode Four Quadrant Multiplier 4083 – 12 Figure 8. Output Noise Density vs IZ Bias Input Offset Trim(s) Output Offset Trim 4083 – 13 4083 – 14 RTI e (VS c 1.6 mA)/(16 mA c IZ) RTO e (VS c 1.6 mA)/(30 mA c IZ) Figure 9. Optional External Trim Networks 4083 – 15 4083 – 16 Figure 10. VZIN vs IZ (Typical) Figure 11. IZIN Bandwidth vs IZ 7 EL4083C Current Mode Four Quadrant Multiplier The primary intended use for the Z input is as a programming pin similar in function to those on programmable op amps. This enables one to trade off power consumption against bandwidth and settling time and allow the part to function within its power dissipation rating over its full operational supply range ( g 4.5V b g 16.5V). The E4083 has been designed to function well for IZ values in the range of 200 mA k IZ k 1.6 mA which corresponds to IX and IY signal bandwidths of about 50 MHz to over 200 MHz. Higher values of IZ may cause problems at temperature extremes while lower values down to zero will progressively degrade the input referred D.C. offsets and reduce speed. Below about 50 mA of bias current the internal servo amplifier loop which maintains the IZ pin at ground will lose regulation and the voltage at the pin will start to move negative (see Figure 10). This is accompanied by a significant increase in input impeddance of the pin. Figure 11 shows the A.C. bandwidth of the IZ input as a function of the D.C. value of IZ. Figures 6 and 7 show the bandwidth and 1% settling time of the multiplying inputs, IX and IY, as functions of IZ. General Operating Information IZ Input (Bias, Divisor) and Power Supplies The IZ pin is a low impedance ( k 20X) virtual ground current input. It can accept positive current from a resistor connected to a positive voltage source or the positive supply. The instantaneous bias for the multiplier gain core is proportional to this current value. Negative applied current will put the multiplier portion of the circuit in a zero bias state and the voltage at the pin will be clamped at a diode drop below ground. The part will respond in a similar manner to currents from a current source such as the output of a transconductance amplifier or one of its own outputs. The overall transfer equation for the EL4083 is: K(IX c IY)/IZ e (IXY – IXY), K E 1 As can be seen from the equation, the Z input can serve as a divisor input. However, it is different from the other two inputs in that the value of its current determines the supply current of the part and the bandwidth and compliance range of the outputs and other two inputs. Table 1 gives the equations describing these and other important relationships. These dependencies can complicate and/or limit the usefulness of this pin as a computational input. The IZ dependence of the impedance of the multiplying inputs can be particularly troublesome. See the IZ divider and the RMSÝ2 circuit sections of the application note for some ways of dealing with this. IX and IY (Multiplier) Inputs and Offset Trimming The IX and IY pins are low impedance (IZ dependent) virtual ground current inputs that accept bipolar signals. The input referred clip value is equal to IZ c 2 while the full scale value has been chosen to be 1.25 c IZ to maintain excellent distortion and linearity performance. Operating at higher full scale values will degrade these two pa- Table 1. Basic Design Equations and Relationships Positive Supply Current Negative Supply Current Power Dissipation (See Figures 4 and 5) Multipling Input(s) Impedance Multiplying Input(s) Clip Point Multiplying Input(s) Full Scale Value Multiplying Input Resistor Values (In Terms of Peak Input Signal) Full Scale Output (Single Ended) Full Scale Output (Differential) IZ (Bias) Input Voltage vs IZ IZ Signal Bandwidth vs IZ IX, IY Signal Bandwidth vs IZ IX, IY 1% Settling Time vs IZ IS a e 3.4 mA a IZ c 26 ISb e 4.5 mA a IZ c 27 PWR e ( a VS b (bVS)) c (4 mA a IZ c 26.5) RZX e RZY e (32X) c 1.6 mA/IZ IX (clip) e IY (clip) e IZ c 2 IX (fs) e IY (fs) e IZ c 1.25 (nominal) RX e VX (peak)/IX (fs) RY e VY (peak)/IY (fs) IXY e IXY e IX (fs) c IY (fs)/(IZ c 2) (IXY b IXY) e IX (fs) c IY (fs)/IZ (See Figure 10) (See Figure 11) (See Figure 6) (See Figure 7) 8 EL4083C Current Mode Four Quadrant Multiplier As mentioned, the output referred offset only affects D.C. accuracy which may not be an issue in A.C. applications. In gain control applications one may only need to null feedthrough with respect to the gain control input. General Operating Information Ð Contd. rameters and, to some extent, bandwidth while improving the signal to noise performance, feedthrough and control range. In gain control (VCA) applications the X input should be used as the control input and the signal applied to the Y input since it has slightly higher bandwidth and better linearity and distortion performance. The EL4083 is fundamentally different from conventional voltage mode multipliers in that the available input range can be tailored to accommodate voltage sources of almost any size by selecting appropriate input series resistor values. If desired, one can interface with voltages that are much greater than the supplies from which the part is powered. Current source signals can be connected directly to the multiplier inputs. The parts’ dynamic range can also be tailored to a large extent for a current signal by the appropriate selection of IZ. These inputs act in the same manner as a virtual ground input of an operational amplifier and thus can serve as a summing node for any number of voltage and/or current signals. Outputs of components such as current output DACs, transconductance amplifiers and current conveyors can be directly connected to the inputs. Current Outputs (IXY, IXY), Feedthrough and Distortion Another unique feature of the EL4083 is the differential ground referenced current output structure. These outputs can drive 50X terminated lines and reactive loads such as transformers, baluns, and LC tank and filter circuits directly.* Unlike low impedance follower buffers, these outputs do not interact with the load to produce ringing or instability. If a high level low impedance output is required, the outputs can be recovered differentially and converted to a single ended output with a fast op amp such as the EL2075 (see Figure 19). The outputs can also drive current input devices such as CMF amps, current conveyors and its own inputs directly by simple connection. Ideally, a multiplier should give zero output if either one of its multiplying inputs is zero. A nonzero output under these conditions is caused by a combination of input and output referred offsets. An output referred offset can be thought of as a fixed value added to the output and thus only affects D.C. accuracy. An input referred offset at a multiplying input allows signal to feedthrough from the other multiplying input to the output(s). The EL4083 is trimmed during testing at Elantec for X and Y input referred offset for IZ e 1.6 mA. The internal trim networks provide a current to each input which nulls the feedthrough caused by internal device mismatches. These current values are ratioed to the value of IZ so that the input referred nulls are largely maintained at different values of IZ. However, there will be some mistracking in the trim networks so that the input referred null point will deviate away from zero at values of IZ lower than 1.6 mA. Figure 9 shows optional external input and output referred offset trim networks which can be used as needed to improve performance. Figures 12 and 14 show the nulled gain and feedthrough characteristics of the IXY and IXY outputs which are virtually identical and differ only in phase. Figure 12 is with the A.C. signal applied to the X input with Y used as the gain control and in Figure 14 these signals are reversed. Note that in both cases the signal feedthrough rolls up and peaks near the cutoff frequency. This is quite typical of the performance of all previous four quadrant multipliers. Figures 13 and 15 show the corresponding gain/feedthrough characteristics for the differentially recovered output signal IXY-IXY. Note that in this case the peak feedthrough at high frequencies is lower by more than 40 dB. * See EL2082 Data SheetÐReceiver IF Amplifier (Figure 19). The EL2082 also has a current output. 9 EL4083C Current Mode Four Quadrant Multiplier General Operating Information Ð Contd. Figures 16 and 17 show the total harmonic distortion for the single-ended and differential recovered outputs for a full scale A.C. input signal on one input and a full scale D.C. control signal on the other. Note that above about one megahertz to the cutoff frequency the THD of the differentially recovered signal is as much as 10 dB lower than the single-ended signals. 10 EL4083C Current Mode Four Quadrant Multiplier General Operating Information Ð Contd. 4083 – 17 4083 – 18 Figure 12. Nulled IXY and IXY Frequency Response (Signal on XIN, Gain Controlled by YIN) Figure 13. Nulled (IXY-IXY) Frequency Response (Signal on XIN, Gain Controlled by YIN) 4083 – 19 4083 – 20 Figure 14. Nulled IXY and IXY Frequency Response (Signal on YIN, Gain Controlled by XIN) Figure 15. Nulled (IXY –IXY) Frequency Response (Signal on YIN, Gain Controlled by XIN) 4083 – 22 4083 – 21 Figure 16. (Full Level XIN THD vs Frequency) Figure 17. (Full Level YIN THD vs Frequency) 11 EL4083C Current Mode Four Quadrant Multiplier This has a maximum 3 dB bandwidth of 130 MHz and settles to 1% in 25 ns. Figure 19 uses an EL2075 at the outputs as a differential to single ended converter with gain to take advantage of the performance enhancements of the differentially recovered output mentioned above and to provide a high level low impedance drive. The b 3 dB bandwidth of this circuit is over 150 MHz using good layout techniques. However, to achieve this bandwidth one must restrict the output swing to little more than 1 Vpp to avoid running into the 500V/ms minimum slew rate of the EL2075. Table 2 shows the input signal assignments for the applications listed above. Applications Basic Product Functions Figures 18 and 19 are the basic schematics for many of the applications of the EL4083. These can perform signal mixing, frequency doubling, modulation, demodulation, gain control/voltagecontrolled amplification, multiplication and squaring. Figure 18 has resistively terminated differential outputs and has the widest bandwidth. The figure also shows the option of using the EL2260 dual CMF amplifier to recover the outputs differentially at very low impedance. Table 2. Input Signal Assignments for Figures 18 and 19 Circuits Application VX VY Mixer Signal 1 Signal 2 Frequency Doubler Signal Signal Modulator Modulating Signal Carrier Demodulator Local Oscillator Modulated Signal Gain Control/VCA Gain Control Signal Multiplier Signal 1 Signal 2 Squarer Signal Signal *X means not connected if function is not used. 12 EL4083C Current Mode Four Quadrant Multiplier Applications Ð Contd. IZ e VCC/RZ RX e VX (MAX) / (1.25 c IZ) RY e VY (MAX) / (1.25 c IZ) *1. 51X Resistors omitted when using EL2260 *2. Optimum value of RF determined by supplies and amount or tolerable peaking (b3 dB BW E 90 MHz @ VS e g 5V, BW E 150 MHz @ g 15V) 4083 – 27 Figure 18. Basic Schematic (Dual Diff Outs) 4083 – 28 IZ e VCC/RZ RX e VX (MAX) / (1.25 c IZ) RY e VY (MAX) / (1.25 c IZ) *Optimized for Wide Bandwidth Figure 19. Basic Schematic (Single Ended Converted) (150 MHz VCA) 13 EL4083C Current Mode Four Quadrant Multiplier tween IZ and NS is; IZ e 200 mA c NS. All other inputs can accept time varying signals. Other Applications Elantec has also published an applications note covering other applications of the EL4083. These include dividers, squaring and square rooting circuits, several RMS and power measurement circuits, and a wideband AGC circuit. Also presented are two polynomial computation examples for video and some HDTV quality fader and summing circuits. The EL4083 has been found flexible enough to easily implement all of the classic four quadrant multiplier applications and also offer interesting new applications possibilities. The model will provide good transient and frequency response and settling time estimates as well as time domain switching results. Input and output impedance and overload responses are correctly modeled. The D.C. current drawn from supplies for a given value of IZ is also correct. Noise, PSRR and the temperature dependence of A.C. parameters such as frequency response and settling time are not modeled. Linearity and distortion results from the model will be worse than the real part by about a factor of three and do not show the correct frequency dependence. EL4083 Macromodel This macromodel is compatible with PSPICE (copywritten by Microsim Corporation) . It has been designed to work accurately for fixed values of IZ (bias) in the range of 200 mA to 1.6 mA. The additional simulation burden imposed by including provision for a time varying IZ was thought not worthwhile. The value of IZ is specified to the model by the parameter NS. The relation be- The macromodel is constructed from simple controlled sources, passive components and stripped transistor and diode models. As such it should be usable, perhaps with slight modification, on all but student or demonstration simulators where the model’s size may be a problem. Macromodel *EL4083 Macromodel *Revision A, August 22, 1994 * *Connection: IZ(BIAS) * l IX(in) * l l IY(in) * l l l VEE * l l l l VCC * l l l l l IXY * l l l l l l /IXY * l l l l l l l .subckt EL4083 ZIN XIN YIN VEE VCC IXY IYX .MODEL M1MP5DIODE D TT e 60p IS e 1f CJO e 300f VJ e 600m XTI e 3 EG e 1.11 RS e 80m .MODEL M2MDCAP D TT e 100n IS e 2e-17 CJO e 1p VJ e 800m RS e 300 .MODEL M3MNPN1 NPN CJC e 1.3p TF e 120p IS e 1.04f BF e 120 CJS e 480f .MODEL M4MPNP1 PNP CJC e 1.79p TF e 50.166666666667p IS e 1f BF e 90 CJS e 480f C1 N9 N7 9p C2 N7 0 350f C3 N19 N16 9p C4 N16 0 350f D1 0 N15 M2MDCAP 12 D10 0 N26 M1MP5DIODE 1 D11 N26 N27 M1MP5DIODE 1 D12 N29 N30 M1MP5DIODE 1 D13 0 N31 M1MP5DIODE 1 D14 VBP N34 M1MP5DIODE 2 D15 N34 VBP M1MP5DIODE 2 D16 0 N34 M2MDCAP 12.5 D17 N35 0 M2MDCAP 12.5 D18 N35 VBN M1MP5DIODE 2 D19 VBN N35 M1MP5DIODE 2 D2 N15 0 M2MDCAP 12 D20 N42 N10 M2MDCAP 4 D21 N10 0 M2MDCAP 4 D22 0 N20 M2MDCAP 4 D23 N20 N45 M2MDCAP 4 D3 0 N12 M1MP5DIODE 8 D4 N55 N13 M1MP5DIODE 8 D5 0 N25 M2MDCAP 6 D6 N25 0 M2MDECAP 6 D7 0 N22 M1MP5DIODE 8 D8 N54 N23 M1MP5DIODE 8 D9 0 N28 M1MP5DIODE 1 EV94 0 VBN 0 N45 1 14 EL4083C Current Mode Four Quadrant Multiplier Macromodel Ð Contd. Q4 0 N20 VNb [VEE] M3MNPN1 2 Q5 N46 VPb N39 [VEE] M4MPNP1 2 Q6 N47 VP a N39 [VEE] M4MPNP1 2 Q7 N46 VP a N38 [VEE] M4MPNP1 2 Q8 N47 VPb N38 [VEE] M4MPNP1 2 Q9 N47 VNb N36 [VEE] M3MNPN1 2 R1 N15 N7 60 TC e 824u 7.67u R10 N16 N17 450 TC e 0 0 R11 YIN N16 100 TC e 0 0 R12 0 SWIN 500 TC e 824u 7.67u R13 N56 N38 35 TC e 0 0 R14 N57 N39 35 TC e 0 0 R15 N37 N58 35 TC e 0 0 R16 N36 N59 35 TC e 0 0 R17 N46 IYX 100 TC e 0 0 R18 N47 IXY 100 TC e 0 0 R2 N11 IXC 6.25 TC e 0 0 R3 N9 IXC 4.5 TC e 0 0 R4 N7 IXA 1.5K TC e 0 0 R5 XIN N7 100 TC e 0 0 R6 N25 N16 156 TC e 824u 7.67u R7 N21 IYC 6.25 TC e 0 0 R8 ITC N19 45 TC e 0 0 R9 N17 IYA 45 TC e 0 0 RSU VEE 0 16K TC e 0 0 VFI10 N43 N44 0.0 VFI11 N40 N41 0.0 VFI12 ZB4 ZB5 0.0 VFI13 ZB5 ZB6 0.0 VFI14 ZB3 ZB4 0.0 VFI15 ZB6 ZB7 0.0 VFI16 N44 ZB9 0.0 VFI17 N41 ZB8 0.0 VFI18 IYB IYC 0.0 VFI19 IYA IYB 0.0 VFI20 IXB IXC 0.0 VFI21 IXA IXB 0.0 VFI22 N22 N24 0.0 VFI23 N23 N24 0.0 VFI24 ZB2 ZB3 0.0 VFI25 ZB1 ZB2 0.0 VFI26 N13 N14 0.0 VF127 N12 N14 0.0 VFI28 ZB9 VEE 0.0 VFI29 ZIN N26 0.0 VF15 N30 N32 0.0 VFI6 N31 N32 0.0 VFI7 N33 0 0.0 VFI8 ZB8 N43 0.0 VFI9 ZB7 N40 0.0 .ENDS EV95 VBP 0 N42 0 1 EV96 N54 0 N21 0 650m EV97 N55 0 N11 0 650m EV98 N27 0 N28 0 1 EV99 N29 0 SWIN 0 1 FI10 VN-VEE VFI10 1 FI11 VCC VP-VFI11 1 FI12 VCC N39 VFI12 1 FI13 N37 VEE VFI13 1 FI14 VCC N38 VFI14 1 FI15 N36 VEE VFI15 1 FI16 N45 VEE VFI16 1 FI17 VCC N42 VFI17 1 FI18 N37 N36 VFI18 500m FI19 N38 N39 VFI19 500m FI20 VN a VNb VFI20 500m FI21 VP a VPb VFI21 500m FI22 0 N21 VFI22 1 FI23 N21 0 VFI23 1 FI24 N24 0 VFI24 2 FI25 N14 0 VFI25 2 FI26 N11 0 VFI26 1 FI27 0 N11 VFI27 1 FI28 VCC VEE VFI28 21 FI 29 N28 ZB1 VFI29 1 FI5 N33 0 VFI5 1 FI6 0 N33 VFI6 1 FI7 N35 N34 VFI7 1 FI8 VN a VEE VFI8 1 FI9 VCC VP a VFI9 1 IIBGN 0 VEE 2.2m IIBGP VCC 0 2.46m IIISWB N32 VEE 629u IIISWI SWIN VEE 555u IIZSU N28 VEE 10u L1 N7 IXA 71n L2 XIN N7 4n L3 N16 IYA 71n L4 YIN N16 4n L5 N46 IYX 4n L6 N47 IXY 4n Q10 N10 VP a [VEE] M4MPNP1 2 Q10 N46 VN a N36[VEE] M3MNPN1 2 Q11 N47 VN a N37 [VEE] M3MNPN1 2 Q12 N46 VNb N37 [VEE] M3MNPN1 2 Q13 0 N34 N56 [VEE] M4MPNP1 400m Q14 0 N34 N57 [VEE] M4MPNP1 400m Q15 0 N35 N58 [VEE] M3MNPN1 400m Q16 0 N35 N59 [VEE] M3MNPN1 400m Q2 0 N10 VPb [VEE] M4MPNP1 2 Q3 0 N20 VN a [VEE] M3MNPN1 2 15 EL4083C EL4083C Current Mode Four Quadrant Multiplier General Disclaimer Specifications contained in this data sheet are in effect as of the publication date shown. Elantec, Inc. reserves the right to make changes in the circuitry or specifications contained herein at any time without notice. Elantec, Inc. assumes no responsibility for the use of any circuits described herein and makes no representations that they are free from patent infringement. December 1995 Rev B WARNING Ð Life Support Policy Elantec, Inc. products are not authorized for and should not be used within Life Support Systems without the specific written consent of Elantec, Inc. Life Support systems are equipment intended to support or sustain life and whose failure to perform when properly used in accordance with instructions provided can be reasonably expected to result in significant personal injury or death. Users contemplating application of Elantec, Inc. products in Life Support Systems are requested to contact Elantec, Inc. factory headquarters to establish suitable terms & conditions for these applications. Elantec, Inc.’s warranty is limited to replacement of defective components and does not cover injury to persons or property or other consequential damages. Elantec, Inc. 1996 Tarob Court Milpitas, CA 95035 Telephone: (408) 945-1323 (800) 333-6314 Fax: (408) 945-9305 European Office: 44-71-482-4596 16 Printed in U.S.A.