EL4095CS INTERSIL [Intersil Corporation], EL4095CS Datasheet

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EL4095CS

Manufacturer Part Number
EL4095CS
Description
Video Gain Control/Fader/Multiplexer
Manufacturer
INTERSIL [Intersil Corporation]
Datasheet

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Part Number:
EL4095CS
Manufacturer:
ELANTEC
Quantity:
20 000
Video Gain Control/Fader/Multiplexer
together and an output amplifier that can drive heavy loads.
Each input appears as the input of a current-feedback
amplifier and with external resistors can separately provide
any gain desired. The output is defined as:
V
where A and B are the fed-back gains of each channel.
Additionally, two logic inputs are provided which each
override the analog V
one input and 0% for the other. The logic inputs switch in
only 25ns and provide high attenuation to the off channel,
while generating very small glitches.
Signal bandwidth is 60MHz, and gain-control bandwidth
20MHz. The gain control recovers from overdrive in only
70ns.
The EL4095 operates from ±5V to ±15V power supplies, and
is available in both 14-pin DIP and narrow surface mount
packages.
Pinout
Manufactured under U.S. Patent No. 5,321,371, 5,374,898
OUT
= A*V
INA
(0. 5V + V
GAIN
The EL4095 is a versatile variable-gain
building block. At its core is a fader
which can variably blend two inputs
(14-PIN PDIP, SO)
GAIN
TOP VIEW
control and force 100% gain for
®
EL4095
1
) + B*V
Data Sheet
INB
Copyright © Intersil Americas Inc. 2003. All Rights Reserved. Elantec is a registered trademark of Elantec Semiconductor, Inc.
(0.5V–V
GAIN
1-888-INTERSIL or 321-724-7143
),
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Features
• Full function video fader
• 0.02%/0.02° differential gain/phase @ 100% gain
• 25ns multiplexer included
• Output amplifier included
• Calibrated linear gain control
• ±5V to ±15V operation
• 60MHz bandwidth
• Low thermal errors
Applications
• Video faders/wipers
• Gain control
• Graphics overlay
• Video text insertion
• Level adjust
• Modulation
Ordering Information
EL4095CN
EL4095CS
August 1996, Rev D
NUMBER
PART
All other trademarks mentioned are the property of their respective owners.
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
14-Pin PDIP
PACKAGE
14-Pin SO
EL4095
PKG. NO.
MDP0031
MDP0027
FN7161

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EL4095CS Summary of contents

Page 1

... Modulation Ordering Information PART NUMBER EL4095CN EL4095CS CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. | 1-888-INTERSIL or 321-724-7143 Intersil (and design registered trademark of Intersil Americas Inc. Copyright © Intersil Americas Inc. 2003. All Rights Reserved. Elantec is a registered trademark of Elantec Semiconductor, Inc. ...

Page 2

Absolute Maximum Ratings (T = 25° Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

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Closed-Loop AC Electrical Specifications PARAMETER SR Slew Rate; V from -3V to +3V OUT Measured at -2V and +2V BW Bandwidth dG Differential Gain; AC Amplitude of 286mV on DC Offset of -0.7V, 0V and +0.7V dθ Differential Phase; AC ...

Page 4

Typical Performance Curves Large-Signal Pulse Response Gain = +1 Small-Signal Pulse Response for Various Gains Frequency Response with Different Values Gain = + EL4095 Large-Signal Pulse Response Gain = -1 Frequency Response for Different Gains-A ...

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Typical Performance Curves Frequency Response with Different Values Frequency Response with Various Values of Parasitic C Change in Bandwidth and Slewrate with Supply Voltage - Gain = +1 5 EL4095 (Continued) - Gain = - ...

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Typical Performance Curves Change in Bandwidth and Slewrate with Temperature - Gain = +1 DC Nonlinearity vs Input Voltage - Gain = +1 Differential Gain and Phase Errors vs Gain Control Setting - Gain = +1 6 EL4095 (Continued) Change ...

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Typical Performance Curves Differential Phase Error vs DC Offset - Gain = +1 Differential Phase Error vs DC Offset - Gain = -1 Attenuation over Frequency - Gain = +1 7 EL4095 (Continued) Differential Phase Error vs DC Offset - ...

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Typical Performance Curves Gain Gain Control Response to a Non-Overloading Step, Constant Sinewave Overload Recovery GAIN Response—No AC Input 8 EL4095 (Continued INA INA Cross-Fade Balance -0V on ...

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Typical Performance Curves Change in V and 100 Gain Control 0% vs Supply Voltage Force Response Supply Current vs Supply Voltage 9 EL4095 (Continued) Change in V and 100 Gain Control Offset GAIN ...

Page 10

Test Circuit 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 external resistors. For ...

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FIGURE 1. EL4095 IN INVERTING CONNECTION Stray capacitance at each -V terminal should absolutely be IN minimized, especially in a positive-gain mode, or peaking will occur. Similarly, the load capacitance should be minimized. If more than 25pF of load capacitance ...

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Accuracies When a channel gain is set to 100%, static and gain errors are similar to those of a simple CFA. The DC output error is expressed Offset = -)*R . ...

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Here the A input channel is configured for a gain of +2 and the B channel for a gain of +1 with its input attenuated by 1/2. The connection is virtuous because the distortions do not increase monotonically with reducing ...

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FIGURE 4. REDUCED-GAIN LEVELER FOR VIDEO INPUTS AND DIFFERENTIAL GAIN AND PHASE PERFORMANCE (SEE TEXT) Although another amplifier is needed to gain the output back to standard level, the reduced error currents bring the differential phase error to less than ...

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FIGURE 5. EL4095 CONNECTED AS A FOUR-QUADRANT MULTIPLIER The A channel gains the input by +1 and the B channel by -1. Feedthrough suppression of the Y input can be optimized by introducing an offset between channel A and B. ...

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The EL4095 is connected as a unity-gain fader, with an LRC peaking network connected to the A-input and an RC rolloff network connected to the B-input. The plot shows the range of peaking controlled by the V input. This circuit ...

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Thus, for a gain of three or more the fader has a noise as good as an op-amp. The only trade-off is that the dynamic range of the input is reduced by the gain due to the nonlinearity caused by ...

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EL4095 FIGURE 8. THE EL4095 MACROMODEL SCHEMATIC 18 ...

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All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems. Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, ...

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