EL4390CM ELANTEC [Elantec Semiconductor], EL4390CM Datasheet

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EL4390CM

Manufacturer Part Number
EL4390CM
Description
Triple 80 MHz Video Amplifier with DC Restore
Manufacturer
ELANTEC [Elantec Semiconductor]
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
EL4390CN
EL4390CM
Part No
80 MHz
gains of 1 to 10
800 V
15 MHz bandwidth flat to 0 1 dB
Excellent differential gain and
phase
TTL CMOS compatible DC
restore function
Available in 16 lead P-DIP 16
lead SOL
RGB drivers requiring DC
restoration
RGB multiplexers requiring DC
restoration
RGB building blocks
Video gain blocks requiring DC
restoration
Sync and color burst processing
b
b
Temp Range
40 C to
40 C to
s slew rate
b
3 dB bandwidth for
a
a
85 C 16-Pin P-DIP MDP0031
85 C 16-Lead SOL MDP0027
Package
Outline
EL4390C
Triple 80 MHz Video Amplifier with DC Restore
General Description
The EL4390C is three wideband current-mode feedback amplifi-
ers optimized for video performance each with a DC restore
amplifier The DC restore function is activated by a common
TTL CMOS compatible control signal while each channel has a
separate restore reference
Each amplifier can drive a load of 150
The EL4390C operates on supplies as low as
Being a current-mode feedback design the bandwidth stays rel-
atively constant at approximately 80MHz over the
gain range The EL4390C has been optimized for use with
1300
Connection Diagram
feedback resistors
at video signal levels
g
4V up to
g
1 to
g
4390 – 1
15V
g
10

Related parts for EL4390CM

EL4390CM Summary of contents

Page 1

... EL4390CN 16-Pin P-DIP MDP0031 b a EL4390CM 16-Lead SOL 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

EL4390C Triple 80 MHz Video Amplifier with DC Restore Absolute Maximum Ratings Voltage between V and Voltage Voltage Voltage between V and ...

Page 3

Triple 80 MHz Video Amplifier with DC Restore Open Loop DC Electrical Characteristics Parameter Description Restoring Section I RES RES Input Current Logic Low IL I RES RES Input Current Logic High IH Note 1 For current feedback amplifiers A ...

Page 4

EL4390C Triple 80 MHz Video Amplifier with DC Restore Table 1 Charge Storage Capacitor Value vs Droop and Charging Rates Cap Value (nF 100 220 These numbers represent the worst case bias current and the worst case ...

Page 5

Triple 80 MHz Video Amplifier with DC Restore Typical Performance Curves Gain Flatness for Various 15V 4390 – 2 Gain Flatness for Various R and R Values F G ...

Page 6

EL4390C Triple 80 MHz Video Amplifier with DC Restore Typical Performance Curves Gain Flatness Shown F G 4390 – 11 Differential Phase at V 15V e S ...

Page 7

Triple 80 MHz Video Amplifier with DC Restore Typical Performance Curves Crosstalk Channel R and G to Channel 1300 4390 – 16 Phase Shift at I Pin a N during Restore ...

Page 8

EL4390C Triple 80 MHz Video Amplifier with DC Restore Typical Performance Curves Maximum Power Dissipation vs Ambient Temperature 16-Pin PDIP Simplified Schematic of One Channel of EL4390 Contd Maximum Power Dissipation vs Ambient Temperature 16-Pin SOL 4390 – ...

Page 9

Triple 80 MHz Video Amplifier with DC Restore Applications Information Circuit Operation Each channel of the EL4390 contains a current feedback amplifier and a TTL CMOS compatible clamp circuit The current that the clamp can source or sink into the ...

Page 10

EL4390C Triple 80 MHz Video Amplifier with DC Restore Applications Information Contd Figure 1 10 4390 – 32 ...

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Triple 80 MHz Video Amplifier with DC Restore Applications Information Contd Figure 2 11 EL4390C 4390 – 33 ...

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EL4390C Triple 80 MHz Video Amplifier with DC Restore Applications Information Contd Figure 3 12 4390 – 34 ...

Page 13

Triple 80 MHz Video Amplifier with DC Restore Applications Information In Figure 3 one of the three channels is used together with a low-offset op-amp to automati- cally trim the bias current of the other two chan- nels The two ...

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EL4390C Triple 80 MHz Video Amplifier with DC Restore 14 ...

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Triple 80 MHz Video Amplifier with DC Restore 15 EL4390C ...

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EL4390C Triple 80 MHz Video Amplifier with DC Restore 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 ...

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