el4083 Intersil Corporation, el4083 Datasheet

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el4083

Manufacturer Part Number
el4083
Description
Current Mode Four Quadrant Multiplier
Manufacturer
Intersil Corporation
Datasheet

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Current Mode Four Quadrant Multiplier
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.
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.
Pinout
Ordering Information
EL4083CN
EL4083CS
NUMBER
PART
-40°C t o +85°C
-40°C t o +85°C
Manufactured under U.S. Patent No. 5,389,840
RANGE
TEMP.
The EL4083 makes use of an Elantec
fully complimentary oxide isolated
bipolar process to produce a patent
8-PIN PDIP, SO
TOP VIEW
EL4083
®
1
PACKAGE
8-Pin PDIP
8-Pin SO
Data Sheet
Copyright © Intersil Americas Inc. 2003. All Rights Reserved. Elantec is a registered trademark of Elantec Semiconductor, Inc.
PKG. NO.
MDP0031
MDP0027
1-888-INTERSIL or 321-724-7143
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
December 1995, Rev. B
Features
• Novel current mode design
• High speed (both inputs)
• Low distortion
• Low noise (R
• Wide supply conditions
• 0.2dB gain tolerance to 25MHz
Features
• 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
- Virtual ground current summing inputs
- Differential ground referenced current outputs
- 200MHz bandwidth
- 12ns 1% settling time
- THD < 0.03% @ 1MHz
- THD < 0.1% @ 10MHz
- 100dB dynamic range
- 10Hz to 20kHz
- 73dB dynamic range
- 10Hz to 10MHz
- ±5 to ±15V operation
- Programmable bias current
All other trademarks mentioned are the property of their respective owners.
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
L
= 50:)
EL4083
FN7157

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el4083 Summary of contents

Page 1

... Data Sheet Current Mode Four Quadrant Multiplier The EL4083 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 ...

Page 2

... MIN MAX I = 2mA, - 2mA < I < 2mA 2mA, - 2mA < I < 2mA X Y Maximum Power Dissipation See Curves Operating Temperature Range EL4083 . . -40°C to +85° C Operating Junction Temperature EL4083 . . . . . . . . .150° C Storage Temperature . . . . . . . . . . . . . . . -65° +150° C MIN TYP MAX ±4.5 ±16.5 7.2 8.5 9.5 42.0 44.0 45 9.5 10 ...

Page 3

... Input Voltage NOTES: 1. Specifications are provisional for the EL4083. 2. Error is defined as the maximum deviation from the ideal transfer function expressed as a percentage of the full scale output. 3. Linearity is defined as the error remaining after compensating for scale factor (gain) variation and input and output referred offset errors. ...

Page 4

... EL4083 Block Diagram AC Test Fixture Burn-In Circuit 4 EL4083 FIGURE 1. FIGURE 2. AC BANDWIDTH TEST FIXTURE FIGURE 3. BURN-IN CIRCUIT PDIP ...

Page 5

... Typical Performance Curves 8-Pin Plastic DIP Maximum Power Dissipation vs Ambient Temperature FIGURE 4. FIGURE BANDWIDTH EL4083 8-Pin SO Maximum Power Dissipation vs Ambient Temperature FIGURE FIGURE 8. OUTPUT NOISE DENSITY VS I FIGURE SETTLING TIME BIAS Z ...

Page 6

... Typical Performance Curves Input Offset Trim(s) u 1.6mA)/(16µ FIGURE 10 (TYPICAL) ZIN Z 6 EL4083 (Continued) Output Offset Trim ) R Z FIGURE 9. OPTIONAL EXTERNAL TRIM NETWORKS u 1.6mA)/(30µ FIGURE 11. (I BANDWIDTH VS I ZIN Z ...

Page 7

... 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(I )/I ...

Page 8

... Current Outputs (I Distortion Another unique feature of the EL4083 is the differential ground referenced current output structure. These outputs can drive 50: terminated lines and reactive loads such as transformers, baluns, and LC tank and filter circuits directly (See EL2082 Data Sheet_Receiver IF Amplifier (Figure 19) ...

Page 9

... XY XY RESPONSE (SIGNAL ON X CONTROLLED FIGURE 14. NULLED I AND I FREQUENCY XY XY RESPONSE (SIGNAL ON Y GAIN CONTROLLED BY X FIGURE 16. FULL LEVEL X THD VS IN FREQUENCY 9 EL4083 FIGURE 13. NULLED (I , GAIN IN FIGURE 15. NULLED ( FIGURE 17. FULL LEVEL FREQUENCY XY XY RESPONSE (SIGNAL GAIN CONTROLLED BY Y ...

Page 10

... 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/voltage-controlled 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 ...

Page 11

... 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 ...

Page 12

... EL4083 ZIN XIN YIN VEE VCC IXY IYX .MODEL M1MP5DIODE D TT=60p IS=1f CJO=300f VJ=600m XTI=3 EG=1.11 RS=80m .MODEL M2MDCAP D TT=100n IS=2e-17 CJO=1p VJ=800m RS=300 .MODEL M3MNPN1 NPN CJC=1.3p TF=120p IS=1.04f BF=120 CJS=480f .MODEL M4MPNP1 PNP CJC=1.79p TF=50.166666666667p IS=1f BF=90 CJS=480f ...

Page 13

... EL4083 Macromodel (Continued) FI21 VP+ VP- 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 N28 ZB1 VFI29 1 FI5 N33 0 VFI5 1 FI6 0 N33 VFI6 1 FI7 N35 N34 VFI7 1 ...

Page 14

... EL4083 Macromodel (Continued) 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 ...

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