EL2082 Datasheet, PDF (1/14 Pages) Intersil Corporation – Current Mode Multiplier

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Current Mode Multiplier
Features
EL2082
FN7152
The EL2082 is a general purpose
variable gain control building block,
built using an advanced proprietary
complementary bipolar process. It is a two-quandrant
multiplier, so that zero or negative control voltages do not
allow signal feedthrough and very high attenuation is
possible. The EL2082 works in current mode rather than
voltage mode, so that the input impedance is low and the
output impedance is high. This allows very wide bandwidth
for both large and small signals.
The I_IN pin replicates the voltage present on the V_IN pin;
therefore, the V_IN pin can be used to reject common-mode
noise and establish an input ground reference. The gain
control input is calibrated to 1mA/mA signal gain for 1V of
control voltage. The disable pin (E) is TTL-compatible, and
the output current can comply with a wide range of output
voltages.
Because current signals rather than voltages are employed,
multiple inputs can be summed and many outputs wire-or'ed
or mixed.
The EL2082 operates from a wide range of supplies and is
available in standard 8-pin plastic DIP or 8-pin SO.
• Flexible inputs and outputs, all ground referred
• 150MHz large and small-signal bandwidth
• 46dB of calibrated gain control range
• 70dB isolation in disable mode @ 10MHz
• 0.15% diff gain and 0.05° diff phase performance at NTSC
using application circuit
• Operates on ±5V to ±15V power supplies
• Outputs may be paralleled to function as a multiplexer
Applications
• Level adjust for video signals
• Video faders and mixers
• Signal routing multiplexers
• Variable active filters
• Video monitor contrast control
• AGC
• Receiver IF gain control
• Modulation/demodulation
EL2082
(8-PIN SO, PDIP)
TOP VIEW
• General “cold” front-panel control of AC signals
Ordering Information
PART
NUMBER TEMP. RANGE PACKAGE
PKG. NO.
EL2082CN
0°C to +75°C 8-Pin PDIP MDP0031
EL2082CS
0°C to +75°C 8-Pin SO
MDP0027
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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