EL2020CN Elantec Inc, EL2020CN Datasheet

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EL2020CN

Manufacturer Part Number
EL2020CN
Description
50MHz, current feedback amplifier
Manufacturer
Elantec Inc
Datasheet

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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
1989 Elantec Inc
Features
Applications
Ordering Information
EL2020CN
EL2020CM
Part No
Slew rate 500 V
Drives
Differential phase
Differential gain
V supply
Output short circuit protected
Uses current mode feedback
1% settling time of 50 ns for 10V
step
Low cost
9 mA supply current
8-pin mini-dip
Video gain block
Residue amplifier
Radar systems
Current to voltage converter
Coax cable driver with
gain of 2
g
33 mA output current
g
Temp Range
b
b
2 4V into 75
g
40 C to
40 C to
5V to
a
a
85 C P-DIP MDP0031
85 C 20-Lead MDP0027
k
g
s
k
0 1%
18V
0 1
Pkg
SOL
Outline
EL2020C
50 MHz Current Feedback Amplifier
General Description
The EL2020 is a fast settling wide bandwidth amplifier opti-
mized for gains between
monolithic Complementary Bipolar process this amplifier uses
current mode feedback to achieve more bandwidth at a given
gain then a conventional voltage feedback operational amplifi-
er
The EL2020 will drive two double terminated 75
to video levels with low distortion Since it is a closed loop de-
vice the EL2020 provides better gain accuracy and lower distor-
tion than an open loop buffer The device includes output short
circuit protection and input offset adjust capability
The bandwidth and slew rate of the EL2020 are relatively inde-
pendent of the closed loop gain taken The 50 MHz bandwidth
at unity gain only reduces to 30 MHz at a gain of 10 The
EL2020 may be used in most applications where a conventional
op amp is used with a big improvement in speed power prod-
uct
Elantec products and facilities comply with Elantec document
QRA-1 Processing-Monolithic Products
Connection Diagrams
Manufactured under U S Patent No 4 893 091
b
10 and
DIP
SOL
a
10 Built using the Elantec
2020 – 2
2020 – 1
coax cables

Related parts for EL2020CN

EL2020CN Summary of contents

Page 1

... Video gain block Residue amplifier Radar systems Current to voltage converter Coax cable driver with gain of 2 Ordering Information Part No Temp Range Pkg Outline EL2020CN P-DIP MDP0031 b a EL2020CM 20-Lead MDP0027 b a SOL 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 ...

Page 2

EL2020C 50 MHz Current Feedback Amplifier Absolute Maximum Ratings V Supply Voltage Input Voltage IN V Differential Input Voltage IN I Input Current (Pins Input Current (Pins INS ...

Page 3

Open Loop Characteristics Parameter Description ICMR (Note 3) Input Current b b Common Mode Rejection IPSR (Note 4) Input Current b b Power Supply Rejection R Transimpedence ( V ol OUT R 400 V 10V OUT ...

Page 4

EL2020C 50 MHz Current Feedback Amplifier AC Closed Loop Characteristics EL2020C Parameter Description Closed Loop Gain dB) R SR1 Slew Rate R 400 FPBW1 Full Power Bandwidth (Note 5) ...

Page 5

Typical Performance Curves VCL Settling Time vs Output Swing Slew Rate vs Supply Voltage 50 MHz Current Feedback Amplifier Non-Inverting Gain of One Gain vs Frequency 3 dB Bandwidth vs b Supply Voltage Slew Rate vs ...

Page 6

EL2020C 50 MHz Current Feedback Amplifier Typical Performance Curves VCL Settling Time vs Output Swing Slew Rate vs Supply Voltage Contd Inverting Gain of One Phase Shift vs Gain vs Frequency Frequency Rise Time and 3 ...

Page 7

Typical Performance Curves VCL Settling Time vs Output Swing Slew Rate vs Supply Voltage 50 MHz Current Feedback Amplifier Contd Non-Inverting Gain of Two Phase Shift vs Gain vs Frequency Frequency 3 dB Bandwidth vs b ...

Page 8

EL2020C 50 MHz Current Feedback Amplifier Typical Performance Curves VCL Settling Time vs Output Swing Slew Rate vs Supply Voltage Contd Non-Inverting Gain of Ten Phase Shift vs Gain vs Frequency Frequency 3 dB Bandwidth vs ...

Page 9

Typical Performance Curves Maximum Undistorted Output Voltage vs Frequency Voltage Noise vs Frequency Supply Current vs Supply Voltage 50 MHz Current Feedback Amplifier Contd Input Resistance vs Temperature Current Noise vs Frequency 8-Lead Plastic DIP Maximum Power Dissipation vs Ambient ...

Page 10

EL2020C 50 MHz Current Feedback Amplifier Application Information Theory of Operation The EL2020 has a unity gain buffer similar to the EL2003 from the non-inverting input to the in- verting input The error signal of the EL2020 is a current ...

Page 11

Application Information Summing Amplifier EL2020 Typical Inverting Amplifier Characteristics Bandwidth 750 750 40 MHz b 2 750 375 40 MHz b 5 680 130 40 MHz b 10 680 68 30 ...

Page 12

EL2020C 50 MHz Current Feedback Amplifier Application Information Offset Adjust To calculate the amplifier system offset voltage from input to output we use the equation Output Offset Voltage BIAS F The EL2020 output ...

Page 13

Application Information Video Distribution Amplifier The distribution amplifier shown below features a difference input to reject common mode signals on the 75 coax cable input Common mode re- jection is often necessary to help to eliminate 60 Hz noise found ...

Page 14

EL2020C 50 MHz Current Feedback Amplifier Burn-In Circuit Equivalent Circuit Pin numbers are for DIP Packages All Packages Use the Same Schematic 14 2020 – 17 2020 – 18 ...

Page 15

EL2020 Macromodel Revision A March 1992 Enhancements include PSRR CMRR and Slew Rate Limiting Connections input a l input Vsupply Vsupply output subckt ...

Page 16

EL2020C 50 MHz Current Feedback Amplifier EL2020 Macromodel Contd ios1 5mA ios2 5mA Supply ips 7 4 3mA Error Terms ivos 0 23 5mA vxx ...

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EL2020 Macromodel 50 MHz Current Feedback Amplifier 17 EL2020C 2020 – 22 ...

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... MHz Current Feedback Amplifier 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 ...

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