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PDF EL4095 Data sheet ( Hoja de datos )

Número de pieza EL4095
Descripción Video Gain Control/Fader/Multiplexer
Fabricantes Elantec Semiconductor 
Logotipo Elantec Semiconductor Logotipo



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No Preview Available ! EL4095 Hoja de datos, Descripción, Manual

EL4095C
Video Gain Control Fader Multiplexer
Features
 Full function video fader
 0 02% 0 02 differential gain
phase 100% gain
 25 ns multiplexer included
 Output amplifier included
 Calibrated linear gain control
 g5V to g15V operation
 60 MHz bandwidth
 Low thermal errors
Applications
 Video faders wipers
 Gain control
 Graphics overlay
 Video text insertion
 Level adjust
 Modulation
Ordering Information
Part No Temp Range Package Outline
EL4095CN b40 C to a85 C 14 Pin P-DIP MDP0031
EL4095CS b40 C to a85 C SO-14
MDP0027
General Description
The EL4095C is a versatile variable-gain building block At its
core is a fader which can variably blend two inputs together and
an output amplifier that can drive heavy loads Each input ap-
pears as the input of a current-feedback amplifier and with ex-
ternal resistors can separately provide any gain desired The
output is defined as
VOUT e A VINA (0 5V a VGAIN) a B VINB (0 5V – VGAIN)
where A and B are the fed-back gains of each channel
Additionally two logic inputs are provided which each override
the analog VGAIN control and force 100% gain for one input
and 0% for the other The logic inputs switch in only 25 ns and
provide high attenuation to the off channel while generating
very small glitches
Signal bandwidth is 60 MHz and gain-control bandwidth
20 MHz The gain control recovers from overdrive in only
70 ns
The EL4095C operates from g5V to g15V power supplies and
is available in both 14-pin DIP and narrow surface mount pack-
ages
Connection Diagram
14-Pin DIP SO
Top View
4095 – 1
Manufactured under U S Patent No 5 321 371 5 374 898
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
1992 Elantec Inc

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EL4095 pdf
EL4095C
Video Gain Control Fader Multiplexer
Typical Performance Curves Contd
Frequency Response with Different Gains
Frequency Response with Various
Load Capacitances and Resistances
Frequency Response with Various
Values of Parasitic CINb
Input Noise Voltage and
Current vs Frequency
Change in Bandwidth and Slewrate with
Supply Voltage b Gain e a1
Change in Bandwidth and Slewrate with
Supply Voltage b Gain e b1
4095 – 12
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EL4095 arduino
EL4095C
Video Gain Control Fader Multiplexer
Applications Information
The EL4095 is a general-purpose two-channel
fader whose input channels each act as a current-
feedback amplifier (CFA) input Each input can
have its own gain factor as established by exter-
nal resistors For instance the Test Circuit shows
two channels each arranged as a1 gain with the
traditional single feedback resistor RF connected
from VOUT to the bVIN of each channel
The EL4095 can be connected as an inverting
amplifier in the same manner as any CFA
Frequency Response
Like other CFA’s there is a recommended feed-
back resistor which for this circuit is 1 KX The
value of RF sets the closed-loop b3 dB band-
width and has only a small range of practical
variation The user should consult the typical
performance curves to find the optional value of
RF for a given circuit gain In general the band-
width will decrease slightly as closed-loop gain is
increased RF can be reduced to make up for
bandwidth loss Too small a value of RF will
cause frequency response peaking and ringing
during transients On the other hand increasing
RF will reduce bandwidth but improve stability
EL4095C In Inverting Connection
4095 – 27
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