________________General Description
The MAX496 and MAX497 are quad, closed-loop, 5V
video buffers that feature extremely high bandwidth and
slew rate for both component video (RGB or YUV) and
composite video (NTSC, PAL, SECAM). The MAX496 is
a unity-gain (0dB) buffer with a 375MHz -3dB bandwidth
and a 1600V/s slew rate. The MAX497 gain of +2 (6dB)
buffer, optimized for driving back-terminated coaxial
cable, features a 275MHz -3dB bandwidth and a
1500V/s slew rate. The MAX496/MAX497 are not slew-
rate limited, thus providing a high full-power bandwidth
of 230MHz and 215MHz, respectively.
The MAX496/MAX497 incorporate a unique two-stage
architecture that combines the low offset and noise
benefits of voltage feedback with the high bandwidth
and slew-rate advantages of current-mode-feedback.
________________________ Applications
Computer Workstations
Surveillance Video
Broadcast and High-Definition TV Systems
Multimedia Products
Medical Imaging
High-Speed Signal Processing
Video Switching and Routing
____________________________Features
o
MAX496 Fixed Gain: +1V/V
MAX497 Fixed Gain: +2V/V
o
High Speed:
Small-Signal -3dB Bandwidth: 375MHz (MAX496)
275MHz (MAX497)
Full-Power -3dB Bandwidth: 230MHz (MAX496)
215MHz (MAX497)
o
0.1dB Gain Flatness: 65MHz (MAX496)
120MHz (MAX497)
o
1600V/s Slew Rate (MAX496)
1500V/s Slew Rate (MAX497)
o
Fast Settling Time: 12ns to 0.1%
o
Lowest Differential Phase/Gain Error: 0.01/0.01%
o
2pF Input Capacitance
o
5.6nV/
Hz Input-Referred Voltage Noise
o
Low Distortion: 64dBc (f = 10MHz)
o
Directly Drives 50
or 75
Back-Terminated Cables
o
High ESD Protection: 5000V
o
Output Short-Circuit Protected
MAX496/MAX497
375MHz Quad Closed-Loop
Video Buffers, A
V
= +1 and +2
________________________________________________________________
Maxim Integrated Products
1
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
OUT0
V
CC
OUT1
V
EE
IN1
GND
IN0
GND
TOP VIEW
MAX496
MAX497
OUT2
V
EE
OUT3
V
CC
IN3
GND
IN2
GND
DIP/SO
___________________Pin Configuration
1M
10M
1G
MAX497
SMALL-SIGNAL GAIN vs. FREQUENCY
-1
0
1
2
3
4
5
6
7
8
9
MAX496/97-A
FREQUENCY (Hz)
GAIN (dB)
100M
_______________Frequency Response
19-0373; Rev 1; 12/98
PART
MAX496
CPE
MAX496CSE
MAX496C/D
0C to +70C
0C to +70C
0C to +70C
TEMP. RANGE
PIN-PACKAGE
16 Plastic DIP
16 Narrow SO
Dice*
EVALUATION KIT MANUAL
FOLLOWS DATA SHEET
_______________Ordering Information
* Dice are specified at T
A
= +25C, DC parameters only.
MAX497
CPE
0C to +70C
16 Plastic DIP
MAX497CSE
0C to +70C
16 Narrow SO
MAX497C/D
0C to +70C
Dice*
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
MAX496/MAX497
375MHz Quad Closed-Loop
Video Buffers, A
V
= +1 and +2
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS
(V
CC
= +5V, V
EE
= -5V, V
IN
= 0V, R
L
= 150
, T
A
= T
MIN
to T
MAX
, 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.
Supply Voltage (V
CC
to V
EE
) ................................................. 12V
Voltage on Any Input Pin to GND ....(V
CC
+ 0.3V) to (V
EE
- 0.3V)
Output Short-Circuit Current Duration ...............................60sec
Continuous Power Dissipation (T
A
= +70C)
Plastic DIP (derate 10.53mW/C above +70C) ..........842mW
Narrow SO (derate 8.70mW/C above +70C) ............696mW
Operating Temperature Range...............................0C to +70C
Storage Temperature Range .............................-65C to +150C
Lead Temperature (soldering, 10sec) .............................+300C
R
L
= 50
R
L
= 150
V
OUT
= 0V
T
A
= T
MIN
to T
MAX
T
A
= +25C
MAX497
T
A
= T
MIN
to T
MAX
MAX496
T
A
= +25C
A
VCL
= +2, V
OUT
= 1mV to 2V
V
EE
= 4.5V to 5.5V, V
CC
= 5.0V
MAX496 (Note 1)
V
CC
= 4.5V to 5.5V, V
EE
= -5.0V
V
OUT
= 0V
V
OUT
= 0V
MAX496: -2V
V
IN
+2V,
MAX497: -1V
V
IN
+1V
MAX497 (Note 2)
CONDITIONS
V
2.5
3.3
V
OUT
Output Voltage Swing
2.8
3.7
V
4.50
5.50
V
S
Operating Supply Voltage Range
mA
45
I
SY
-
Negative Quiescent Supply
Current (Total)
32
37
mA
45
I
SY
+
Positive Quiescent Supply
Current (Total)
31
36
%
0.01
A
VLIN
Gain Linearity
dB
60
78
PSRR-
Negative Power-Supply
Rejection Ratio (Change in V
OS
)
dB
55
74
PSRR+
Positive Power-Supply Rejection
Ratio (Change in V
OS
)
V/V
1.965
2.01
A
V
Voltage Gain
mV
1
3
V
OS
Input Offset Voltage
V
1.4
1.6
V
IN
2.8
3.2
Input Voltage Range
1.975
2.01
0.983
1.00
0.988
1.00
pF
2
C
IN
Input Capacitance
V/C
-10
TCV
OS
Input Offset Voltage Drift
A
1
5
I
B
Input Bias Current
M
0.5
1.2
R
IN
Input Resistance
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
Output Resistance
R
OUT
DC
0.1
Output Impedance
Z
OUT
f = 10MHz
1.5
Short-Circuit Output Current
I
SC
Short to ground or either supply voltage
170
mA
R
L
= 150
R
L
= 50
R
L
= 150
R
L
= 50
Small-Signal -3dB Bandwidth
MAX496/MAX497
375MHz Quad Closed-Loop
Video Buffers, A
V
= +1 and +2
_______________________________________________________________________________________
3
AC ELECTRICAL CHARACTERISTICS
(V
CC
= +5V, V
EE
= -5V, V
IN
= 0V, R
L
= 100
, T
A
= +25C.)
Note 1:
Voltage Gain = (V
OUT
- V
OS
) / V
IN
, measured at V
IN
= 1V.
Note 2:
Voltage Gain = (V
OUT
- V
OS
) / V
IN
, measured at V
IN
= 2V.
Note 3:
Input test signal is a 3.58MHz sine wave of amplitude 40 IRE superimposed on a linear ramp (0 IRE to 100 IRE).
R
L
= 150
, see Figure 2.
Note 4:
Input of channel under test grounded through 75
. Adjacent channel driven at f = 10MHz (Figure 4a). For All-Hostile
Crosstalk, all inputs are driven except the channel under test (Figure 4b).
f
C
= 5MHz
V
OUT
= 2V
MAX496CPE
f
C
= 10MHz,
V
OUT
= 2Vp-p
MAX496CSE
f = 10MHz
f = 10MHz
f = 3.58MHz (Note 3)
f = 3.58MHz (Note 3)
V
OUT
= 4V step, MAX496
V
OUT
= 4V step, MAX497
0.1% (V
OUT
= 2V step)
CONDITIONS
dBc
60
SFDR
58
Spurious-Free Dynamic Range
THD
Total Harmonic Distortion
dBc
-58
-64
dB
72
78
MHz
80
80
230
375
375
pA
Hz
2
Input Noise Current Density
nV
Hz
5.6
Input Noise Voltage Density
degrees
0.01
DP
Differential Phase Error
%
0.01
DG
Differential Gain Error
MHz
215
FPBW
Full-Power Bandwidth
1600
V/s
1500
SR
Slew Rate
ns
12
t
s
Settling Time
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
MAX496CPE
MAX496CSE
MAX496
MAX497
MAX496
MAX497
MAX496
MAX497
0.1dB
120
Gain Flatness
MAX497CPE
100
MAX497CSE
(Note 4)
dB
72
Adjacent Channel Crosstalk
MAX496
MAX497
65
All-Hostile Crosstalk
(Note 4)
MAX496
MAX497
MAX497CPE
MAX497CSE
MHz
275
BW
-3dB
275
Small-Signal -3dB Bandwidth
MAX496/MAX497
375MHz Quad Closed-Loop
Video Buffers, A
V
= +1 and +2
4
_______________________________________________________________________________________
__________________________________________Typical Operating Characteristics
(V
CC
= +5V, V
EE
= -5V, R
L
= 100
, T
A
= +25C, unless otherwise noted.)
1M
10M
1G
MAX496
SMALL-SIGNAL GAIN vs. FREQUENCY
-8
-7
-6
-5
-4
-3
-2
-1
0
1
2
MAX496/97-01
FREQUENCY (Hz)
GAIN (dB)
100M
MAX496
GAIN FLATNESS vs. FREQUENCY
-0.8
-0.7
-0.6
-0.5
-0.4
-0.3
-0.2
-0.1
0
0.1
0.2
MAX496/97-02
FREQUENCY (Hz)
GAIN (dB)
1M
10M
1G
100M
MAX496
LARGE-SIGNAL GAIN vs. FREQUENCY
-8
-7
-6
-5
-4
-3
-2
-1
0
1
2
MAX496/97-03
FREQUENCY (Hz)
GAIN (dB)
1M
10M
1G
100M
MAX497
SMALL-SIGNAL GAIN vs. FREQUENCY
-1
0
1
2
3
4
5
6
7
8
9
MAX496/97-04
FREQUENCY (Hz)
GAIN (dB)
1M
10M
1G
100M
1M
10M
1G
MAX496
SMALL-SIGNAL GAIN vs. FREQUENCY
DRIVING A 50
LOAD
-8
-7
-6
-5
-4
-3
-2
-1
0
1
2
MAX496/97-07
FREQUENCY (Hz)
GAIN (dB)
100M
MAX497
GAIN FLATNESS vs. FREQUENCY
5.3
5.2
5.4
5.5
5.6
5.7
5.8
5.9
6.0
6.1
6.2
MAX496/97-05
FREQUENCY (Hz)
GAIN (dB)
1M
10M
1G
100M
SO
DIP
MAX497
LARGE-SIGNAL GAIN vs. FREQUENCY
-1
-2
0
1
2
3
4
5
6
7
8
MAX496/97-06
FREQUENCY (Hz)
GAIN (dB)
1M
10M
1G
100M
1M
10M
1G
MAX497
SMALL-SIGNAL GAIN vs. FREQUENCY
DRIVING A 50
LOAD
-2
-1
0
1
2
3
4
5
6
7
8
MAX496/97-08
FREQUENCY (Hz)
GAIN (dB)
100M
0
-90
10k
1M
10M
100k
100M
TOTAL HARMONIC DISTORTION (THD)
vs. FREQUENCY
-80
-70
-60
-50
-40
-30
-20
-10
MAX496/97-09
FREQUENCY (Hz)
DISTORTION (dB)
MAX497
MAX496
V
OUT
= 2Vp-p
MAX496
GAIN MATCH vs. FREQUENCY
-0.6
-0.7
-0.5
-0.4
-0.3
-0.2
-0.1
0.0
0.1
0.2
0.3
MAX496/97-13a
FREQUENCY (Hz)
GAIN MATCH (dB)
1M
10M
1G
100M
CH 2CH 1
CH 3CH 0
CH 3CH 1
CH 3CH 2
CH 1CH 0
CH 2CH 0
MAX496/MAX497
375MHz Quad Closed-Loop
Video Buffers, A
V
= +1 and +2
_______________________________________________________________________________________
5
-10
-110
1
10
200
100
MAX496
CROSSTALK vs. FREQUENCY
-90
MAX496/97-10
FREQUENCY (MHz)
CROSSTALK (dB)
-70
-50
-30
-100
-80
-60
-40
-20
ALL-HOSTILE
ADJACENT CHANNEL
-10
0
1M
1G
MAX497
CROSSTALK vs. FREQUENCY
-70
-90
-100
-30
-20
-40
-60
-80
-50
MAX496/97-11
FREQUENCY (Hz)
CROSSTALK (dB)
10M
100M
ADJACENT CHANNEL
ALL-HOSTILE
-90
-100
20k
1M
10M
100k
100M
POWER-SUPPLY REJECTION (PSR)
vs. FREQUENCY
-80
-70
-60
-50
-40
-30
-20
-10
MAX496/97-12
FREQUENCY (Hz)
POWER-SUPPLY REJECTION (dB)
MAX497
MAX496
MAX497
GAIN MATCH vs. FREQUENCY
-0.4
-0.5
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0.4
0.5
MAX496/97-13b
FREQUENCY (Hz)
GAIN MATCH (dB)
1M
10M
1G
100M
CH 2CH 0
CH 1CH 0
CH 3CH 1
CH 3CH 0
CH 3CH 2
CH 2CH 1
-0.30
-0.20
-0.10
0
0.10
0.20
0.30
-40
-20
0
20
40
60
80
100
INPUT OFFSET VOLTAGE
vs. TEMPERATURE
MAX496/97-16
TEMPERATURE (C)
OFFSET VOLTAGE (mV)
1.000
0.990
-40
-20
0
20
40
60
80
100
MAX496
GAIN vs. TEMPERATURE
0.992
0.998
MAX496/97-14
TEMPERATURE (C)
GAIN (V/V)
0.996
0.994
0.991
0.993
0.999
0.997
0.995
V
IN
= -1.0V
V
IN
= -1.0V
2.05
1.95
-40
-20
0
20
40
60
80
100
MAX497
GAIN vs. TEMPERATURE
1.97
2.03
MAX496/97-15
TEMPERATURE (C)
GAIN (V/V)
2.01
1.99
1.96
1.98
2.04
2.02
2.00
V
IN
= +1.0V
V
IN
= -1.0V
38
40
-10
0
10
80
SUPPLY CURRENT
vs. TEMPERATURE
26
22
20
34
36
32
28
24
30
MAX496/97-17
TEMPERATURE (C)
SUPPLY CURRENT (mA)
20
30
40
50
60 70
I
EE
R
L
= NO LOAD
I
CC
_____________________________Typical Operating Characteristics (continued)
(V
CC
= +5V, V
EE
= -5V, R
L
= 100
, T
A
= +25C, unless otherwise noted.)
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