EL4451CS Elantec Inc, EL4451CS Datasheet

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EL4451CS

Manufacturer Part Number
EL4451CS
Description
Wideband variable-gain amplifier, gain of 2
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
1994 Elantec Inc
Features
Applications
Ordering Information
EL4451CN
EL4451CS
Part No
Complete variable-gain amplifier
with output amplifier requires
no extra components
Excellent linearity of 0 2%
70 MHz signal bandwidth
Operates on
supplies
All inputs are differential
400V
l
Leveling of varying inputs
Variable filters
Fading
Text insertion into video
70dB attenuation
b
b
Temp Range
40 C to
40 C to
s slew rate
a
a
g
85 C 14-Pin P-DIP MDP0031
85 C 14-Lead SO
5V to
Package
g
4 MHz
15V
Outline
MDP0027
EL4451C
Wideband Variable-Gain Amplifier Gain of 2
General Description
The EL4451C is a complete variable gain circuit It offers wide
bandwidth and excellent linearity while including a powerful
output voltage amplifier drawing modest supply current
The EL4451C operates on
analog input range of
processing AC characteristics do not change appreciably over
the
The circuit has an operational temperature range of
The EL4451C is fabricated with Elantec’s proprietary comple-
mentary bipolar process which provides excellent signal sym-
metry and is free from latch up
Connection Diagram
a
85 C and is packaged in plastic 14-pin DIP and 14-lead SO
g
5V to
g
15V supply range
g
2V making it ideal for video signal
g
5V to
g
15V supplies and has an
b
40 C to
4451-1

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EL4451CS Summary of contents

Page 1

... Outline EL4451CN 14-Pin P-DIP MDP0031 b a EL4451CS 14-Lead SO MDP0027 b a 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

EL4451C Wideband Variable-Gain Amplifier Gain of 2 Absolute Maximum Ratings V Positive Supply Voltage Supply Voltage Voltage at any Input or Feedback IN V Difference between Pairs IN of Inputs or ...

Page 3

Wideband Variable-Gain Amplifier Gain of 2 Open-Loop DC Electrical Characteristics Power Supplies 500 Parameter Description CMRR Common-mode rejection ratio of V PSRR Power supply rejection ratio ...

Page 4

EL4451C Wideband Variable-Gain Amplifier Gain of 2 Typical Performance Curves Frequency Response for Various Feedback Divider Ratios 4451 – 4 Gain 3 dB Bandwidth b and Peaking vs Load Resistance 4451 – 7 Frequency Response for Various Gain Settings 4451 ...

Page 5

Wideband Variable-Gain Amplifier Gain of 2 Typical Performance Curves Common-Mode Rejection Ratio vs Frequency 4451 – 13 Differential Gain Error vs Input Offset Voltage 12V 4451 – 16 Differential Gain and Phase Errors ...

Page 6

EL4451C Wideband Variable-Gain Amplifier Gain of 2 Typical Performance Curves Gain vs V GAIN 4451 – 21 Offset Voltage vs Die Temperature 4451 – 24 Supply Current vs Die Temperature 4451 – 27 Contd Change in V and V G ...

Page 7

Wideband Variable-Gain Amplifier Gain of 2 Applications Information The EL4451 is a complete two-quadrant multipli- er gain control with 70 MHz bandwidth It has three sets of inputs a differential signal input V a differential gain-controlling input V IN and ...

Page 8

EL4451C Wideband Variable-Gain Amplifier Gain of 2 Applications Information Signal Amplitudes Signal input common-mode voltage must be be- tween ( and ( ensure linear ity Additionally the differential voltage on any ...

Page 9

Wideband Variable-Gain Amplifier Gain of 2 Applications Information Leveling Circuits Often a variable-gain control is used to normalize an input signal to a standard amplitude from a modest range of possible input amplitude A good example is in video systems ...

Page 10

EL4451C Wideband Variable-Gain Amplifier Gain of 2 Applications Information Here is the EL4451 used as an oscillator with simple AGC Low-Distortion Sinewave Oscillator The oscillation frequency is set by the resonance of a series-tuned circuit which may be an L-C ...

Page 11

Wideband Variable-Gain Amplifier Gain of 2 Applications Information A voltage-controlled equalizer and cable driver can be constructed so Equalization and Line Driver Amplifier The main signal path is via the REF pin This Contd ensures maximum signal linearity while the ...

Page 12

... Wideband Variable-Gain Amplifier Gain of 2 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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