19-0219; Rev 2; 6/94
AL
ANU
IT M HEET
K
ION
AS
UAT S DAT
AL OW
EV LL
FO
Two-Channel, Triple/Quad
RGB Video Switches and Buffers
____________________________Features
o
o
o
o
o
100MHz Unity-Gain Bandwidth
90MHz Bandwidth with 2V/V Gain
0.01%/0.03° Differential Gain/Phase Error
Drives 50Ω and 75Ω Back-Terminated Cable Directly
Wide Output Swing:
±2V into 75Ω
±2.5V into 150Ω
300V/µs Slew Rate (2V/V gain)
20ns Channel Switching Time
Logic Disable Mode:
High-Z Outputs
Reduced Power Consumption
Outputs May Be Paralleled for Larger Networks
5pF Input Capacitance (channel on or off)
_______________General Description
The MAX463–MAX470 series of two-channel,
triple/quad buffered video switches and video buffers
combines high-accuracy, unity-gain-stable amplifiers
with high-performance video switches. Fast switching
time and low differential gain and phase error make this
series of switches and buffers ideal for all video appli-
cations. The devices are all specified for ±5V supply
operation with inputs and outputs as high as ±2.5V
when driving 150Ω loads (75Ω back-terminated cable).
Input capacitance is typically only 5pF, and channel-to-
channel crosstalk is better than 60dB, accomplished by
surrounding all inputs with AC ground pins. The on-
board amplifiers feature a 200V/µs slew rate (300V/µs
for A
V
= 2V/V amplifiers), and a bandwidth of 100MHz
(90MHz for A
V
= 2V/V buffers). Channel selection is
controlled by a single TTL-compatible input pin or by a
microprocessor interface, and channel switch time is
only 20ns.
For design flexibility, devices are offered with buffer-
amplifier gains of 1V/V or 2V/V for 75Ω back-terminated
applications. Output amplifiers have a guaranteed out-
put swing of ±2V into 75Ω.
Devices offered in this series are as follows:
PART
MAX463
MAX464
MAX465
MAX466
MAX467
MAX468
MAX469
MAX470
DESCRIPTION
Triple RGB Switch & Buffer
Quad RGB Switch & Buffer
Triple RGB Switch & Buffer
Quad RGB Switch & Buffer
Triple Video Buffer
Quad Video Buffer
Triple Video Buffer
Quad Video Buffer
VOLTAGE GAIN
(V/V)
1
1
2
2
1
1
2
2
MAX463–MAX470
o
o
o
o
o
______________Ordering Information
PART
MAX463CNG
MAX463CWG
MAX463C/D
MAX463ENG
MAX463EWG
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
24 Narrow Plastic DIP
24 Wide SO
Dice*
24 Narrow Plastic DIP
24 Wide SO
Ordering Information continued on last page.
* Dice are specified at T
A
= +25°C, DC parameters only.
_________________Pin Configurations
TOP VIEW
IN0A
GND
IN1A
GND
1
2
3
4
5
6
7
8
9
SWITCH
24 GND
MAX463
MAX465
23 LE
22 EN
21 A0
20 CS
19 V-
18 OUT0
17 V+
16 OUT1
15 GND
14 V+
13 OUT2
________________________Applications
Broadcast-Quality Color-Signal Multiplexing
RGB Multiplexing
RGB Color Video Overlay Editors
RGB Color Video Security Systems
RGB Medical Imaging
Coaxial-Cable Line Drivers
IN2A
V-
V-
IN0B
GND
IN1B 10
GND 11
IN2B 12
3P2T
DIP/SO
Typical Operating Circuit appears at end of data sheet.
Pin Configurations continued at end of data sheet.
1
________________________________________________________________
Maxim Integrated Products
Call toll free 1-800-998-8800 for free samples or literature.
Two-Channel, Triple/Quad
RGB Video Switches and Buffers
MAX463–MAX470
ABSOLUTE MAXIMUM RATINGS
Power-Supply Ranges
V+ to V- ................................................................................12V
Analog Input Voltage ..........................(V- - 0.3V) to (V+ + 0.3V)
Digital Input Voltage ...................................-0.3V to (V+ + 0.3V)
Output Short-Circuit Duration (to GND)........................1 Minute
Input Current into Any Pin, Power On or Off...................±50mA
Continuous Power Dissipation (T
A
= +70°C)
16-Pin Plastic DIP (derate 22.22mW/°C above +70°C) ....1778mW
16-Pin Wide SO (derate 20.00mW/°C above +70°C) .......1600mW
24-Pin Narrow Plastic DIP
(derate 20.2mW/°C above +70°C)..................................1620mW
24-Pin Wide SO (derate 19.3mW/°C above +70°C) .........1590mW
28-Pin Narrow Plastic DIP
(derate 20.2mW/°C above +70°C)..................................1620mW
28-Pin Wide SO (derate 18.1mW/°C above +70°C) .........1440mW
Operating Temperature Ranges
MAX4_ _C_ _.........................................................0°C to +70°C
MAX4_ _E_ _ ......................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
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.
ELECTRICAL CHARACTERISTICS
PARAMETER
Operating Supply Voltage
Input Voltage Range
Offset Voltage
Power-Supply Rejection Ratio
On Input Bias Current
On Input Resistance
Input Capacitance
SYMBOL
V
S
V
IN
V
OS
PSRR
I
BIAS
R
IN
C
IN
(V+ = 5V, V- = -5V, -2V
≤
V
IN
≤
+2V, R
LOAD
= 75Ω, unless otherwise noted.)
CONDITIONS
T
A
= +25°C
MIN TYP MAX
±4.75 ±5
-2
±3
50
300
Channel off or on
MAX463/MAX464, MAX467/MAX468
(Note 1)
MAX465/MAX466, MAX469/MAX470,
R
LOAD
= 150Ω, (Note 2)
V
OUT
R
LOAD
= 150Ω
R
LOAD
= 75Ω
f
IN
= 10MHz
Output Impedance
R
OUT
MAX463/MAX464,
MAX467/MAX468
MAX465/MAX466,
MAX469/MAX470
Output Resistance,
Disabled Mode
Output Capacitance,
Disabled Mode
R
OUTD
C
OUTD
MAX463/MAX464
MAX465/MAX466
MAX463–MAX466
MAX463/MAX465/MAX467/MAX469,
V
IN
= 0V
MAX464/MAX466/MAX468/MAX470,
V
IN
= 0V
MAX463/MAX465, disabled mode
MAX464/MAX466, disabled mode
150
0.7
60
±1
700
5
0.2
0.3
±2.5 ±2.8
±2.0 ±2.4
5
0.05
0.1
250
1
10
65
85
35
40
80
100
45
50
100
120
50
55
mA
100
0.7
kΩ
kΩ
pF
Ω
0.5
1.0
±2.5
-1.5/+2
1.0
%
2.0
V
±3
150
±5.25
2
±10
50
±5
T
A
= T
MIN
to T
MAX
MIN
MAX
±4.75
-2
±5.25
2
±15
UNITS
V
V
mV
dB
µA
kΩ
pF
Voltage-Gain Accuracy
Output Voltage Swing
f
IN
= DC
Positive Supply Current
I+
2
_______________________________________________________________________________________
Two-Channel, Triple/Quad
RGB Video Switches and Buffers
ELECTRICAL CHARACTERISTICS (continued)
PARAMETER
SYMBOL
CONDITIONS
MAX463/MAX465/MAX467/MAX469,
V
IN
= 0V
Negative Supply Current
I-
MAX464/MAX466/MAX468/MAX470,
V
IN
= 0V
MAX463/MAX465, disabled mode
MAX464/MAX466, disabled mode
Input Noise Density
Slew Rate
-3dB Bandwidth
Differential Gain Error
(Note 3)
Differential Phase Error
(Note 3)
Settling Time to 0.1%
Adjacent Channel Crosstalk
(Note 4)
All-Hostile Crosstalk (Note 5)
All-Hostile Off Isolation (Note 6)
Channel Switching
Propagation Delay (Note 7)
Channel Switching Time
(Note 8)
Switching Transient
Amplifier Switching Off-Time
(Note 9)
Amplifier Switching On-Time
(Note 10)
Logic Input High Threshold
Logic Input Low Threshold
Logic Input Current High
Logic Input Current Low
t
OFF
t
ON
V
IH
V
IL
I
INHI
I
INLO
en
SR
BW
DG
DP
t
S
XTALK
XTALK
ISO
t
PD
t
SW
f
IN
= 10kHz
MAX463/MAX464, MAX467/MAX468
MAX465/MAX466, MAX469/MAX470
MAX463/MAX464, MAX467/MAX468
MAX465/MAX466, MAX469/MAX470
MAX463/MAX464, MAX467/MAX468
MAX465/MAX466, MAX469/MAX470
MAX463/MAX464, MAX467/MAX468
MAX465/MAX466, MAX469/MAX470
V
IN
= 2V-to-0V step
f
IN
= 10MHz
f
IN
= 10MHz
f
IN
= 10MHz, MAX463–MAX466
MAX463–MAX466
MAX463–MAX466
V
INA
= V
INB
= 0V, MAX463–MAX466
MAX463–MAX466
MAX463–MAX466
—
–
—
–
EN, A0, CS, LE; MAX463–MAX466
—
–
—
–
EN, A0, CS, LE; MAX463–MAX466
—
–
—
–
EN, A0, CS, LE; MAX463–MAX466
—
–
—
–
EN, A0, CS, LE; MAX463–MAX466
MAX463–MAX470
(V+ = 5V, V- = -5V, -2V
≤
V
IN
≤
+2V, R
LOAD
= 75Ω, unless otherwise noted.)
T
A
= +25°C
MIN TYP MAX
50
65
20
25
20
200
300
100
90
0.01
0.12
0.03
0.14
50
60
50
70
15
20
300
80
100
2
0.8
200
200
0.8
200
200
2
65
80
30
35
T
A
= T
MIN
to T
MAX
UNITS
MIN
MAX
75
95
35
40
nV/
√
Hz
V/µs
MHz
%
deg.
ns
dB
dB
dB
ns
ns
mV
P-P
ns
ns
V
V
µA
µA
–
—
mA
_______________________________________________________________________________________
3
Two-Channel, Triple/Quad
RGB Video Switches and Buffers
MAX463–MAX470
ELECTRICAL CHARACTERISTICS (continued)
PARAMETER
Address Setup Time (Note 11)
Address Hold Time (Note 11)
—
–
CS Pulse Width Low (Note 11)
Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
Note 6:
Note 7:
Note 8:
Note 9:
Note 10:
Note 11:
SYMBOL
t
SU
t
H
t
CS
CONDITIONS
—
–
—
–
EN, A0, CS, LE; MAX463–MAX466
—
–
—
–
EN, A0, CS, LE; MAX463–MAX466
—
–
—
–
EN, A0, CS, LE; MAX463–MAX466
(V+ = 5V, V- = -5V, -2V
≤
V
IN
≤
+2V, R
LOAD
= 75Ω, unless otherwise noted.)
T
A
= +25°C
MIN TYP MAX
30
0
15
15
T
A
= T
MIN
to T
MAX
UNITS
MIN
MAX
30
0
ns
ns
ns
Voltage gain accuracy for the unity-gain devices is defined as [(V
OUT
- V
IN
) at V
IN
= 1V - (V
OUT
- V
IN
) at V
IN
= -1V]/2.
Voltage gain accuracy for the gain-of-two devices is defined as [(V
OUT
/2 - V
IN
) at V
IN
= 1V - (V
OUT
/2 - V
IN
) at V
IN
= -1V]/2.
Tested with a 3.58MHz sine wave of amplitude 40IRE superimposed on a linear ramp (0IRE to 100IRE), R
L
= 150Ω to ground.
Tested with the selected input connected to ground through a 75Ω resistor, and a 4V
P-P
sine wave at 10MHz driving adjacent input.
Tested in the same manner as described in Note 4, but with all other inputs driven.
—
–
Tested with LE = 0V, EN = V+, and all inputs driven with a 4V
P-P
, 10MHz sine wave.
Measured from a channel switch command to measurable activity at the output.
Measured from where the output begins to move to the point where it is well defined.
Measured from a disable command to amplifier in a non-driving state.
Measured from an enable command to the point where the output reaches 90% current out.
Guaranteed by design.
__________________________________________Typical Operating Characteristics
(T
A
= +25°C, unless otherwise noted.)
MAX464
OUTPUT IMPEDANCE
vs. FREQUENCY
MAX463/470 -02
MAX463/470 -01
MAX468
GAIN AND PHASE RESPONSES
2
100
MAX468
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
MAX463/470 -03
60
OUTPUT IMPEDANCE (
Ω
)
1
GAIN
GAIN (dB)
0
PHASE
10
PSRR (dB)
50
V–
40
V+
30
–1
36
72
PHASE (DEGREES)
0
1
–2
108
144
0.1
20
–3
10k
180
100k
1M
FREQUENCY (Hz)
10M
100M
0.01
10k
100k
1M
10M
100M
1G
FREQUENCY (Hz)
10
1k
10k
100k
1M
10M
100M
FREQUENCY (Hz)
4
_______________________________________________________________________________________
Two-Channel, Triple/Quad
RGB Video Switches and Buffers
____________________________Typical Operating Characteristics (continued)
(T
A
= +25°C, unless otherwise noted.)
MAX463
DISABLED OUTPUT RESISTANCE
vs. TEMPERATURE
MAX463/470 -04
MAX463/470 -05
MAX463–MAX470
VOLTAGE GAIN ACCURACY
vs. TEMPERATURE
0.16
400
MAX465
DISABLED OUTPUT RESISTANCE
vs. TEMPERATURE
MAX463/470 -06
1.30
PERCENTAGE (%)
MAX465
0.12
350
OUTPUT RESISTANCE (kΩ)
–50
–25
0
25
50
75
100
0.14
OUTPUT RESISTANCE (kΩ)
1.25
300
1.20
0.10
MAX463
0.08
250
1.15
0.06
–50
–25
0
25
50
75
100
TEMPERATURE (°C)
200
TEMPERATURE (°C)
1.10
–50
–25
0
25
50
75
100
TEMPERATURE (°C)
SUPPLY CURRENT PER AMPLIFIER
vs. TEMPERATURE
MAX463/470 -09
DISABLED SUPPLY CURRENT
vs. TEMPERATURE
MAX463/470 -07
OUTPUT VOLTAGE SWING
vs. LOAD RESISTANCE
3
OUTPUT VOLTAGE (V)
2
1
0
–1
–2
–3
–4
MAX463/4/7/8:V
IN
= 4V
MAX465/6/9/70:V
IN
= 2V
MAX463/470 -08
SUPPLY CURRENT PER AMPLIFIER (mA)
30
25
I+
20
15
I–
10
5
0
–50
–25
0
25
50
75
40
35
SUPPLY CURRENT (mA)
I+
30
25
20
I–
15
10
4
100
–50
–25
0
25
50
75
100
10
100
1000
10000
TEMPERATURE (°C)
TEMPERATURE (°C)
LOAD RESISTANCE (
Ω
)
_______________________________________________________________________________________
5
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