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Электронный компонент: MAX4141

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_______________General Description
The MAX4141 is a wideband 330MHz, 700V/s 4x1
multiplexer optimized for high-definition, broadcast-
quality, composite (HDTV, NTSC, PAL, SECAM) video
switching arrays. The device includes four open-loop
buffer amplifiers with a 0.1dB gain flatness of 150MHz,
and enable and switch-control logic. The MAX4141
operates from 5V supplies and features differential
phase and gain error of only 0.01/0.01%. The ultra-low
switching glitch (less than 13mV) is positive to avoid
confusion with any sync pulses.
Ideal as a building block for large switch arrays, the
MAX4141 features a constant, high input impedance
and a disable function that puts the output into a high-
impedance state and reduces the operating current to
only 250A. The open-loop architecture allows the out-
put to drive capacitive loads without oscillation.
Other key features include -66dB crosstalk (30MHz),
-74dB isolation (30MHz), less than 10mV offset voltage,
and a 110MHz full-power bandwidth (1.4Vp-p). The
MAX4141 is available in a 14-pin narrow SO package.
________________________Applications
Broadcast/HDTV-Quality Color Signal Multiplexing
Video Routers and Crosspoint Arrays
RF and IF Routing
Graphics Color Signal Routing
Telecom Routing
Data Acquisition
____________________________Features
o
330MHz -3dB Bandwidth
o
0.1dB Gain Flatness of 150MHz
o
700V/s Slew Rate
o
0.01/0.01% Differential Phase/Gain
o
-66dB Crosstalk and -74dB Isolation at 30MHz
o
High-Z Outputs when Disabled
o
3pF Input Capacitance
o
Low Switching Glitch
o
On-Board Control Logic
MAX4141
330MHz, 4x1 Precision Video Multiplexer
________________________________________________________________
Maxim Integrated Products
1
14
13
12
11
10
9
8
1
2
3
4
5
6
7
A0
A1
V
CC
OUT
GND
IN1
GND
IN0
TOP VIEW
MAX4141
V
EE
EN
N.C.
IN3
GND
IN2
SO
__________________Pin Configuration
IN0
A
V
= +1
A
V
= +1
A
V
= +1
A
V
= +1
IN1
IN2
IN3
OUT
A0
A1
EN
CONTROL
LOGIC
________________Functional Diagram
Call toll free 1-800-998-8800 for free samples or literature.
19-0400; Rev 0; 5/95
PART
MAX4141CSD
0C to +70C
TEMP. RANGE
PIN-PACKAGE
14 SO
EVALUATION KIT
AVAILABLE
______________Ordering Information
MAX4141
330MHz, 4x1 Precision Video Multiplexer
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
S
= 5V, -2.5V
V
IN
+2.5V, R
L
= 5k
, C
L
= 5pF, T
A
= 0C to +70C, unless otherwise noted. Typical values are at T
A
= +25C.)
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
V
CC
...........................................................................................6V
V
EE
..........................................................................................-6V
V
CC
-V
EE
..................................................................................12V
Analog Input Voltage .......................(V
EE
- 0.3V) to (V
CC
+ 0.3V)
Digital Input Voltage ...................................-0.3V to (V
CC
+ 0.3V)
Duration of Short Circuit to Ground..............Continuous (Note 1)
Continuous Power Dissipation (T
A
= +70C)
SO (derate 8.00mW/C above +70C) ........................640mW
Operating Temperature Range...............................0C to +70C
Storage Temperature Range .............................-65C to +160C
Junction Temperature ......................................................+150C
Lead Temperature (soldering, 10sec) .............................+300C
V
S
= 4.5V to 5.5V
V
S
= 4.5V to 5.5V
V
OUT
= 0V
V
IN
= 2.5V
V
S
= 4.5V to 5.5V
Channel disabled
T
A
= T
MIN
to T
MAX
Channel selected
V
IN
= 0V
Enabled
T
A
= +25C
V
IN
= 0V, channel enabled or disabled
CONDITIONS
V
0.8
V
INL
Logic Input Low Voltage
V
2.0
V
INH
Logic Input High Voltage
pF
5
C
OUT
Disabled Output Capacitance
M
30
R
OUT
Disabled Output Resistance
nA
10
I
OUT(OFF)
Disabled Output Current
20
R
OUT
Output Resistance
V/V
0.97
1.0
A
V
Voltage Gain
0.98
1.0
dB
50
PSRR
Power-Supply Rejection Ratio
mV
15
V
OS
Output Offset Voltage
3
10
pF
C
IN
Input Capacitance
5.0
5.5
4.5
5.0
5.5
V
S
Operating Supply Voltage
M
100
R
IN
Input Resistance
0.4
A
0.2
I
B
Input Bias Current
mA
6.5
I
S(ON)
Operating Supply Current
A
250
350
I
S(OFF)
Disabled Supply Current
V
2.5
V
IN
Input Voltage Range
2.5
4.0
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
Note 1:
If maximum power-dissipation rating is met.
T
A
= +25C
T
A
= T
MIN
to T
MAX
Channel selected
Channel disabled
V
S
= 4.5V to 5.5V
A
10
I
INL
Logic Input Low Current
A
10
I
INH
Logic Input High Current
T
A
= +25C
T
A
= T
MIN
to T
MAX
V
3
DC PARAMETERS
V
S
= 4.5V to 5.5V
MAX4141
330MHz, 4x1 Precision Video Multiplexer
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(V
S
= 5V, -2.5V
V
IN
+2.5V, R
L
= 5k
, C
L
= 5pF, T
A
= 0C to +70C, unless otherwise noted. Typical values are at T
A
= +25C.)
Note 2:
Full-Power Bandwidth is inferred from Slew Rate (SR) testing by the equation SR =
E
P
, where E
P
is the peak output
voltage and
= 2
f.
Note 3:
Differential Gain and Phase are tested using a modulated ramp, 100IRE (0.714V).
V
IN
= 1.4Vp-p
f = 30MHz, V
IN
= 1.4Vp-p, R
L
= 2k
f = 30MHz, V
IN
= 1.4Vp-p, R
L
= 2k
V
IN
= 5Vp-p
Chip-to-chip, f = 3.58MHz
f = 3.58MHz
f = 3.58MHz
V
IN
= 1Vp-p, f = 30MHz
V
IN
= 0.2Vp-p, 10% to 90%
V
IN
= 5Vp-p
V
IN
= 0.1Vp-p
DC to 30MHz
V
IN
= 1Vp-p, f = 30MHz, R
IN
= 50
DC to 150MHz
f = 3.58MHz
CONDITIONS
dBc
-70
Third Harmonic Distortion
dBc
-65
Second Harmonic Distortion
degrees
0.2
Input-Output Delay Matching
ps
860
Group Delay
mVp-p
13
Switching Transient
ns
500
t
ON
Channel Switching On Time
s
1.0
t
OFF
Channel Switching Off Time
dB
74
Off Isolation
dB
66
All-Hostile Crosstalk
degrees
0.01
DP
Differential Phase (Note 3)
110
700
%
0.01
DG
Differential Gain (Note 3)
ps
950
t
R
Small-Signal Rise Time
dB
0.08
Gain Peaking
MHz
45
f
PBW
Full-Power Bandwidth
(Note 2)
MHz
330
f
3dB
-3dB Bandwidth
0.02
dB
0.1
Gain Flatness
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
V
IN
= 1.4Vp-p
V/s
500
SR
Slew Rate
AC PARAMETERS
V
IN
(1Vp-p)
ALL-HOSTILE CROSSTALK TEST CIRCUIT
HIGH-IMPEDANCE
PROBE
MAX4141
NETWORK
ANALYZER
V
IN
(1Vp-p)
OFF-ISOLATION TEST CIRCUIT
20
*
* 20
RESISTOR USED TO SIMULATE
OUTPUT RESISTOR OF AN "ON" MAX4141.
IN THIS WAY, OPERATION IN AN ARRAY
IS SIMULATED.
HIGH-IMPEDANCE
PROBE
NETWORK
ANALYZER
MAX4141
MAX4141
330MHz, 4x1 Precision Video Multiplexer
4
_______________________________________________________________________________________
__________________________________________Typical Operating Characteristics
(V
S
= 5V, R
L
= 5k
, C
L
= 1pF, T
A
= +25C, unless otherwise noted.)
-2
1
10
1000
GAIN vs. FREQUENCY
-10
-6
0
2
-8
-4
-12
-16
-18
-14
MAX4141 TOC-01
FREQUENCY (MHz)
GAIN (dB)
100
-0.1
1
10
100
GAIN FLATNESS
-0.3
0
-0.4
-0.2
-0.6
-0.7
-0.5
0.1
0.2
0.3
MAX4141 TOC-02
FREQUENCY (MHz)
GAIN (dB)
1000
0.1
1
100
500
OUTPUT RESISTANCE vs. FREQUENCY
40
10
0
20
30
MAX4141 TOC-03
FREQUENCY (MHz)
OUTPUT RESISTANCE (
)
10
0
10k
100k
10M
100M
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
-40
-20
10
-30
-10
-50
-60
-70
-80
-90
MAX4141 TOC-04
FREQUENCY (Hz)
AMPLITUDE (dB)
1M
V
CC
V
EE
MAX14141 TOC-07
TIME (5ns/div)
VOLTS
(100mV/div)
SMALL-SIGNAL PULSE RESPONSE
(C
L
= 0pF, R
L
= 5k
)
40
0.1
1
100
1000
ALL-HOSTILE CROSSTALK
vs. FREQUENCY
-40
0
60
-20
20
-60
-140
-100
-120
-80
MAX4141 TOC-05
FREQUENCY (MHz)
AMPLITUDE (dB)
10
40
0.1
1
100
1000
OFF ISOLATION vs. FREQUENCY
-40
0
60
-20
20
-60
-140
-100
-120
-80
MAX4141 TOC-06
FREQUENCY (MHz)
AMPLITUDE (dB)
10
MAX14141 TOC-08
TIME (5ns/div)
OUT
(1V/div)
IN
(2.5V/div)
GND
GND
LARGE-SIGNAL PULSE RESPONSE
(C
L
= 0pF, R
L
= 5k
)
VOLTS
MAX14141 TOC-09
TIME (5ns/div)
VOLTS
(100mV/div)
SMALL-SIGNAL PULSE RESPONSE
(C
L
= 47pF, R
L
=
)
MAX4141
330MHz, 4x1 Precision Video Multiplexer
_______________________________________________________________________________________
5
MAX14141 TOC-10
TIME (10ns/div)
OUT
(1V/div)
IN
2.5V/div
GND
GND
LARGE-SIGNAL PULSE RESPONSE
(C
L
= 47pF, R
L
=
)
VOLTS
MAX14141 TOC-11
TIME (1
s/div)
1V/div
2V/div
ENABLE/DISABLE DELAY TIME
OUTPUT
ENABLE ON
IN0 ON
GND
MAX14141 TOC-12
TIME (1
s/div)
10mV/div
2V/div
OUTPUT GLITCH AMPLITUDE
AMPLITUDE
OUTPUT
A0
1
100
1M
10G
100M
NOISE VOLTAGE
vs. FREQUENCY
3
100
30
10
1
MAX4141 TOC-13
FREQUENCY (Hz)
NOISE VOLTAGE (nV
Hz
)
10k
0
0
BANDWIDTH vs.
LOAD CAPACITANCE
MAX4141 TOC-16
LOAD CAPACITANCE (pF)
BANDWIDTH (MHz)
50
100
150
200
250
300
350
20
40
60
80
100
R
L
= OPEN
-3dB BW
-0.1dB BW
3.4
0
70
SUPPLY CURRENT
vs. TEMPERATURE
5.0
MAX4141 TOC-14
TEMPERATURE (
C)
SUPPLY CURRENT (mA)
30
4.2
3.8
10
20
60
4.6
3.6
4.4
4.0
4.8
40
50
I
EE
I
CC
-0.110
-3
GAIN vs. INPUT VOLTAGE
AND TEMPERATURE
MAX4141 TOC-15
INPUT VOLTAGE (V)
GAIN (dB)
-0.105
-0.100
-0.095
-0.090
-0.085
-2
-1
0
1
2
3
T
A
= +25C
T
A
= 0C
T
A
= +70C
-1.6
0
GAIN vs.
LOAD RESISTANCE
MAX4141 TOC-17
R
L
(k
)
GAIN (dB)
-1.4
-1.2
-1.0
-0.8
-0.6
-0.4
-0.2
0
1
2
3
4
5
____________________________Typical Operating Characteristics (continued)
(T
A
= +25C, unless otherwise noted.)