1995 Elantec, Inc.
EL
4331C
General Description
The EL4331C is a triple, very high speed, 2:1 Multiplexing Amplifier.
It is intended primarily for component video multiplexing, and is espe-
cially suited for pixel switching. The amplifiers have their gain set to
1, internally. All three amplifiers are switched simultaneously from
their A to B inputs by the TTL/CMOS compatible, common A/B con-
trol pin.
The EL4331C has a power down mode, in which the total supply cur-
rent drops to less than 1 mA. In this mode, each output will appear as
a high impedance.
The EL4331C runs from standard 5V supplies, and is available in the
narrow 16-pin small outline package.
Connection Diagrams
Features
3 ns A-B switching
300 MHz bandwidth
Power down mode
TTL/CMOS compatible controls
Fixed gain of 1
400V/s slew rate
Applications
RGB multiplexing
Picture-in-picture
Cable driving
HDTV processing
Switched gain amplifiers
ADC input multiplexer
Ordering Information
Part No.
Temp. Range
Package
Outline#
EL4331CS
-45C to +85C
16-Lead SOIC
MDP0027
EL4331C
Triple 2:1 Mux-Amp AV = 1
O
c
tober 6, 1999
2
EL4331C
Triple 2:1 Mux-Amp AV = 1
E
L
4331C
Absolute Maximum Ratings
(T
A
= 25 C)
V
CC
to V
EE
14V
V
CC
to Any GND
12V
V
EE
to Any GND
12V
Continuous Output Current
45 mA
Any Input (except P
D
)
V
EE
-0.3V to V
CC
+0.3V
P
D
Input
V
CC
-7V to V
CC
+0.3V
Input Current, Any Input
5 mA
Power Dissipation
See curves
Operating Temperature
-45C to +85C
Leading Temperature during Soldering
300C
Junction Temperature
170C
Storage Temperature
-60C to +150C
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 equipment, specifically the LTX77
Series system. Unless otherwise noted, all tests are pulsed tests, therefor T
J
= T
C
= T
A
.
Test Level
Test Procedure
I
100% production tested and QA sample tested per QA test plan QCX0002.
II
100% production tested at T
A
= 25C and QA sample tested at T
A
= 25C, T
MAX
and T
MIN
per QA test plan QCX0002.
III
QA sample tested per QA test plan QCX0002.
IV
Parameter is guaranteed (but not tested) by Design and Characterization Data.
V
Parameter is typical value at T
A
= 25C for information purposes only.
DC Electrical Characteristics
V
CC
= +5V, V
EE
= -5V, Ambient Temperature =25C, R
L
= 500
, P
D
= 5V
Parameter
Description
Min
Typ
Max
Test Level
Units
V
OS
Input Referred Offset Voltage
-12
30
II
mV
dV
OS
Input A to Input B Offset Voltage
[1]
1
8
II
mV
I
B
Input Bias Current
-7
-30
II
A
dI
B
Input A to Input B Bias Current
[1]
0.5
4.0
II
A
AV
OL
Open Loop Gain (from Gain Error Calculation)
54
V
dB
PSRR
Power Supply Rejection Ratio
60
70
II
dB
V
OUT
_500
Output Voltage Swing into 500
Load
2.7
3.2
II
V
V
OUT
_150
Output Voltage Swing into 150
Load
+3/-2.7
V
V
I
OUT
Current Output, Measured with 75
load
[2]
30
40
II
mA
X
TALK
Crosstalk from Non-Selected Input (at DC)
-70
-85
II
dB
V
IH
Input Logic High Level (A/B and PD)
2.0
II
V
V
IL
Input Logic Low Level (A/B and PD)
0.8
II
V
I
IL_AB
Logic Low Input Current (V
IN
= 0.8V), A/B Pin
-1
-20
-100
II
A
I
IH_AB
Logic High Input Current (V
IN
= 2.0V), A/B Pin
-5
0
5
II
A
I
IL_PD
Logic Low Input Current (V
IN
= 0.8V), PD Pin
-10
0
10
II
A
I
IH_PD
Logic High Input Current (V
IN
= 5.0V), PD Pin
0.5
1.0
1.6
II
mA
I
S
Total Supply Current
38
48
60
II
mA
I
S(PD)
Powered Down Supply Current
0.01
1.0
II
mA
1.
Any channel's A-input to its B-input.
2.
There is no short circuit protection on any output.
3
EL4331C
Triple 2:1 Mux-Amp AV = 1
EL
4331C
AC Electrical Characteristics
V
CC
= +5V, V
EE
= -0.5V, Ambient Temperature = 25C, R
L
= 150
and C
L
= 5 pF
Parameter
Description
Min
Typ
Max
Test Level
Units
BW
-3 dB Bandwidth
-3 dB BW with 250
and 10 pF Load
300
400
V
V
MHz
MHz
SR
Slew Rate (4V Square Wave, Measured 25%75%)
400
V
V/s
T
S
Settling Time to 0.1% of Final Value
13
V
ns
T
AB
Time to Switch Inputs
3
V
ns
OS
Overshoot, V
OUT
= 4V
pk-pk
8
V
%
I
SO-AB
-10M
Input to Input Isolation at 10 MHz
53
V
dB
I
SO-AB
-100M
Input to Input Isolation at 100 MHz
33
V
dB
I
SO-CH
-10M
Channel to Channel Isolation at 10 MHz
56
V
dB
I
SO-CH-CH
-100M
Channel to Channel Isolation at 100 MHz
33
V
dB
Pkg
Peaking with Nominal Load
0
V
dB
T
ON_PD
Power Down Turn-On Time
150
V
ns
T
OFF_PD
Power Down Turn-Off Time
1
V
s
4
EL4331C
Triple 2:1 Mux-Amp AV = 1
E
L
4331C
Typical Performance Curves
3 dB Bandwidth Small Signal Transmit Response
Large Signal Transient Response
Switching a Family of DC Levels to Ground and Back
Switching from Ground to An
Uncorrelated Sine Wave and Back
Switching Glitch, 0V to 0V with 2 ns AB edges
Switching Glitch, 0V to 0V with 10 ns AB Edges
5
EL4331C
Triple 2:1 Mux-Amp AV = 1
EL
4331C
Switching a Family of DC Levels to a Sine Wave and BackV
Output Response In and Out of
Power Down with a Family of DC Inputs
Output Power Down Turn-On Response
Output Power Down Turn-Off Response
Frequency Response with
150
and 5 pF Load
Frequency Response with
240
and 5 pF Load
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