EL4094CS Intersil Corporation, EL4094CS Datasheet - Page 7

• Manufacturer Part Number: EL4094CS
• Description: op Amp, 60MHz, Video Gain Controller, 2 Input Fader, With Feedback Resistors For Unity Gain
• Manufacturer: Intersil Corporation

Typical Performance Curves
Applications Information
The EL4094 is a self-contained and calibrated fader
subsystem. When a given channel has 100% gain the circuit
behaves as a current-feedback amplifier in unity-gain
connection. As such, video and transfer distortions are very
low. As the gain of the input is reduced, a 2-quadrant
multiplier is gradually introduced into the signal path and
distortions increase with reducing gain.
The input impedance also changes with gain setting, from
about 1MΩ at 100% gain down to 16kΩ at zero gain. To
7
Gain Control Gain vs Frequency
Change in V(100%) and V(0%) of Gain
Control vs Supply Voltage
Supply Current vs Supply Voltage
(Continued)
EL4094
maximize gain accuracy and linearity, the inputs should be
driven from source impedances of 500Ω or less.
Linearity
The EL4094 is designed to work linearly with ±2V inputs, but
lowest distortion occurs at ±1V levels and below. Errors are
closer to those of a good current-feedback amplifier above
90% gain.
Low-frequency linearity is 0.1% or better for gains 25% to
100% and inputs up to 1V. NTSC differential gain and phase
errors are better than 0.3% and 0.3° for the 25% to 100%
gain range. These distortions are not strongly affected by
Change in V(100%) and V(0%) of Gain
Control vs Die Temperature
Change in V(100%) and V(0%) of
Gain Control vs /V
Maximum Dissipation vs
Ambient Temperature
G
Offset