EL2120 Datasheet, PDF (1/12 Pages) Intersil Corporation – 100MHz Current Feedback Amplifier

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Data Sheet
January 1996, Rev E
EL2120
FN7044
100MHz Current Feedback Amplifier
The EL2120 is a wideband current
feedback amplifier optimized for video
performance. Its 0.01% differential
gain and 0.03 degree differential phase performance when
at ±5V supplies exceeds the performance of other amplifiers
running on ±15V supplies. Operating on ±8 to ±15V supplies
reduces distortions to 0.01% and 0.01 degrees and below.
The EL2120 can operate with supplies as low as ±2.5V or a
single +5V supply.
Being a current feedback design, bandwidth is a relatively
constant 100MHz over the ±1 to ±10 gain range. The
EL2120 has been optimized for flat gain over frequency and
all characteristics are maintained at positive unity gain.
Because the input slew rate is similar to the 700V/µs output
slew rate the part makes an excellent high-speed buffer.
The EL2120 has a superior output disable function. Time to
enable or disable is 50ns and does not change markedly
with temperature. Furthermore, in disable mode the output
does not draw excessive currents when driven with
1000V/µs slew rates. The output appears as a 3pF load
when disabled.
Simplified Schematic
Features
• Excellent differential gain and phase on ±5V to ±15V
supplies
• 100MHz -3dB bandwidth from gains of ±1 to ±10
• 700V/µs slew rate
• 0.1dB flatness to 20MHz
• Output disable in 50ns - remains high impedance even
when driven with large slew rates
• Single +5V supply operation
• AC characteristics are lot and temperature stable
• Available in small SO-8 package
Applications
• Video gain block
• Residue amplifier
• Multiplexer
• Current to voltage converter
• Coax cable driver with gain of 2
• ADC driver
Ordering Information
PART
NUMBER TEMP. RANGE
EL2120CN 0°C to +75°C
EL2120CS 0°C to +75°C
PACKAGE
8-Pin PDIP
8-Pin SO
Pinouts
PKG. NO.
MDP0031
MDP0027
EL2120
(8-PIN PDIP)
TOP VIEW
EL2120
(8-PIN SO)
TOP VIEW
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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