ELANT EL4094CS, EL4094CN Datasheet
EL4094C
Video Gain Control/Fader
EL4094C August 1996, Rev D
Features
# Complete video fader
# 0.02%/0.04
phase
differential gain/
§
@
100% gain
# Output amplifier included
# Calibrated linear gain control
g
#
5V tog15V operation
# 60 MHz bandwidth
# Low thermal errors
Applications
# Video faders/wipers
# Gain control
# Video text insertion
# Level adjust
# Modulation
Ordering Information
Part No. Temp. Range Package Outline
EL4094CNb40§Ctoa85§C 8-Pin P-DIP MDP0031
EL4094CSb40§Ctoa85§C 8-Pin SO MDP0027
General Description
The EL4094C is a complete two-input fader. It combines two
inputs according to the equation:
e
V
OUT
where V
GAIN
voltages and ranges from
MHz bandwidth at
distortion performance. The EL4094C is the same circuit as the
EL4095, but with feedback resistors included on-chip to implement unity-gain connection. An output buffer is included in
both circuits.
The gain-control input is also very fast, with a 20 MHz smallsignal bandwidth and 70 ns recovery time from overdrive.
The EL4094C is compatible with power supplies from
g
15V, and is available in both the 8-pin plastic DIP and SO-8.
Connection Diagram
Ý
V
(0.5VaVg)aV
INA
INB
is the difference between V
b
b
0.5V toa0.5V. It has a wide 60
3 dB, and is designed for excellent video
(0.5VbVg),
and V
GAIN
GAIN
g
pin
5V to
4094– 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.
©
1993 Elantec, Inc.
EL4094C
Video Gain Control/Fader
Absolute Maximum Ratings
a
V
V
V
V
V
S
S
INA
GAIN
GAIN
Voltage between V
Voltage between V
, Input Voltage (V
V
INB
Input Voltage V
Input Voltage V
a
S
a
S
and GND
b
and V
S
to (V
(T
b
S
a
S
GAIN
b
S
e
25§C)
A
a
18V
a
33V
)b0.3V
)a0.3V
g
5V
to V
S
I
Output Current
OUT
Internal Power Dissipation See Curves
T
Operating Ambient Temp. Range
A
T
Operating Junction Temperature 150§C
J
T
Storage Temperature Range
ST
a
b
g
35 mA
b
40§Ctoa85§C
65§Ctoa150§C
Important Note:
All parameters having Min/Max specifications are guaranteed. The Test Level column indicates the specific device testing actually
performed during production and Quality inspection. Elantec performs most electrical tests using modern high-speed automatic test
e
equipment, specifically the LTX77 Series system. Unless otherwise noted, all tests are pulsed tests, therefore T
e
T
TA.
J
C
Test Level Test Procedure
I 100% production tested and QA sample tested per QA test plan QCX0002.
II 100% production tested at T
T
and T
III QA sample tested per QA test plan QCX0002.
MAX
per QA test plan QCX0002.
MIN
e
25§C and QA sample tested at T
A
e
25§C,
A
IV Parameter is guaranteed (but not tested) by Design and Characterization Data.
V Parameter is typical value at T
e
25§C for information purposes only.
A
Open Loop DC Electrical Characteristics
e
g
V
S
otherwise specified
Parameter Description
V
OS
I
a
B
PSRR Power Supply Rejection Ratio 60 80 I dB
EG Gain Error, 100% Setting
V
IN
V
O
I
SC
V
GAIN
V
GAIN
NL, Gain Gain Control Non-linearity, V
NL, A
A
A
R
GAIN
I
S
F
T
5V, T
e
25§C, V
A
GAIN
ea
0.6V to measure channel A, V
Input Offset Voltage 4 30 I mV
VINInput Bias Current 2 10 I mA
VINRange (Vb)a2.5 (Va)b2.5 I V
Output Voltage Swing (Vb)a2.5 (Va)b2.5 I V
Output Short-Circuit Current 50 95 150 I mA
, 100% Minimum Voltage at V
, 0% Maximum Voltage at V
e
1 Signal Non-linearity, V
V
e
0.5 Signal Non-linearity, V
V
e
0.25 Signal Non-linearity, V
V
Resistance between V
Supply Current 12 14.5 19 I mA
Off-Channel Feedthrough
eb
GAIN
0.6V to measure channel B, V
GAIN
Limits
Min Typ Max
b
for 100% Gain 0.45 0.5 0.55 I V
GAIN
GAIN
IN
IN
IN
GAIN
for 0% Gain
e
IN
e
0tog1V, V
e
0tog1V, V
e
0tog1V, V
and V
b
g
0.5V 1.5 4 I %
e
0.55V 0.01 V %
GAIN
e
0V 0.05 V %
GAIN
eb
GAIN
GAIN
0.25V 0.2 0.5 I %
4.6 5.5 6.6 I kX
0.55
b
b
0.5
0.5
b
0.8 I %
b
0.45 I V
b
75
50 I dB
e
0V, unless
Test
Level
Units
TDis 0.6inTDis 3.3in
2
EL4094C
Video Gain Control/Fader
Closed Loop AC Electrical Characteristics
e
g
V
S
Parameter Description
SR Slew Rate; V
BW Bandwidth,b3 dB 45 60 III MHz
dG Differential Gain, AC amplitude of 286 mV
di Differential Phase, AC ampitude of 286 mV
BW, GAIN
T
REC
Typical Performance Curves
e
15V, C
, GAIN Gain Control Recovery from Overload; V
15 pF, T
L
at 3.58 MHz on DC offset ofb0.7, 0, anda0.7V A
at 3.58 MHz on DC offset ofb0.7, 0, anda0.7V A
b
e
A
OUT
b
b
3 dB Gain Control Bandwidth, V
e
25§C, A
1 dB 35 V MHz
0.1 dB 6 V MHz
100% unless otherwise noted
V
fromb3V toa3V measured atb2V anda2V 370 500 V V/ms
GAIN
Limits
Min Typ Max
p-p
Amplitude 0.5 V
GAIN
e
100% 0.02 V %
V
e
A
50% 0.20 V %
V
e
A
25% 0.40 V %
V
p-p
e
100% 0.04 V (§)
V
e
A
50% 0.20 V (§)
V
e
A
25% 0.20 V (§)
V
p-p
fromb0.6V to 0V 70 V ns
20 V MHz
Level
Test
Units
TDis 2.6in
Small-Signal Step
Response for Gain
25%, and 0%. V
e
100%, 50%,
g
5V
S
4094– 2
Large-Signal Step
Response for Gain
25%, and 0%. V
3
e
100%, 50%,
g
12V
S
4094– 3
EL4094C
Video Gain Control/Fader
Typical Performance Curves
Frequency Response vs
Capacitive Loading
Frequency Response vs Gain Over Frequency
Ð Contd.
Frequency Response vs
Resistive Loading
Off-Channel Isolation
Change in Slewrate and
Bandwidth with Supply Voltage
Output Noise Over Frequency
4094– 4
4
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