19-0373; Rev 1; 12/98
UAL
IT MAN
TION K
A
SHEET
EVALU
S DATA
W
FOLLO
375MHz Quad Closed-Loop
Video Buffers, A
V
= +1 and +2
____________________________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/µs Slew Rate (MAX496)
1500V/µs 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 50Ω or 75Ω Back-Terminated Cables
o
High ESD Protection: 5000V
o
Output Short-Circuit Protected
________________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/µs slew rate. The MAX497 gain of +2 (6dB)
buffer, optimized for driving back-terminated coaxial
cable, features a 275MHz -3dB bandwidth and a
1500V/µs 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.
MAX496/MAX497
________________________Applications
Computer Workstations
Surveillance Video
Broadcast and High-Definition TV Systems
Multimedia Products
Medical Imaging
High-Speed Signal Processing
Video Switching and Routing
_______________Ordering Information
PART
MAX496CPE
TEMP. RANGE
0°C to +70°C
PIN-PACKAGE
16 Plastic DIP
_______________Frequency Response
MAX497
SMALL-SIGNAL GAIN vs. FREQUENCY
8
7
6
GAIN (dB)
5
4
3
2
1
0
-1
1M
10M
100M
1G
FREQUENCY (Hz)
MAX496/97-A
MAX496CSE
0°C to +70°C
16 Narrow SO
MAX496C/D
0°C to +70°C
Dice*
MAX497CPE
0°C to +70°C
16 Plastic DIP
MAX497CSE
0°C to +70°C
16 Narrow SO
MAX497C/D
0°C to +70°C
Dice*
* Dice are specified at T
A
= +25°C, DC parameters only.
___________________Pin Configuration
TOP VIEW
GND 1
IN0 2
GND 3
IN1 4
GND 5
IN2 6
GND 7
IN3 8
16 OUT0
15 V
CC
14 OUT1
9
MAX496
MAX497
13 V
EE
12 OUT2
11 V
EE
10 OUT3
9
V
CC
DIP/SO
1
________________________________________________________________
Maxim Integrated Products
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.
375MHz Quad Closed-Loop
Video Buffers, A
V
= +1 and +2
MAX496/MAX497
ABSOLUTE MAXIMUM RATINGS
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
= +70°C)
Plastic DIP (derate 10.53mW/°C above +70°C) ..........842mW
Narrow SO (derate 8.70mW/°C above +70°C) ............696mW
Operating Temperature Range...............................0°C to +70°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.
DC ELECTRICAL CHARACTERISTICS
(V
CC
= +5V, V
EE
= -5V, V
IN
= 0V, R
L
= 150Ω, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
Input Voltage Range
Input Offset Voltage
Input Offset Voltage Drift
Input Bias Current
Input Resistance
Input Capacitance
SYMBOL
V
IN
V
OS
TCV
OS
I
B
R
IN
C
IN
MAX496 (Note 1)
Voltage Gain
A
V
MAX497 (Note 2)
Positive Power-Supply Rejection
Ratio (Change in V
OS
)
Negative Power-Supply
Rejection Ratio (Change in V
OS
)
Gain Linearity
Positive Quiescent Supply
Current (Total)
Negative Quiescent Supply
Current (Total)
Operating Supply Voltage Range
Output Voltage Swing
Output Resistance
Output Impedance
Short-Circuit Output Current
PSRR+
PSRR-
A
VLIN
I
SY
+
I
SY
-
V
S
V
OUT
R
OUT
Z
OUT
I
SC
R
L
= 150Ω
R
L
= 50Ω
DC
f = 10MHz
Short to ground or either supply voltage
R
L
= 150Ω
R
L
= 50Ω
R
L
= 150Ω
R
L
= 50Ω
0.988
0.983
1.975
1.965
55
60
74
78
0.01
31
32
±4.50
±2.8
±2.5
±3.7
±3.3
0.1
1.5
170
36
45
37
45
±5.50
MAX496
MAX497
V
OUT
= 0V
V
OUT
= 0V
V
OUT
= 0V
MAX496: -2V
≤
V
IN
≤
+2V,
MAX497: -1V
≤
V
IN
≤
+1V
0.5
CONDITIONS
MIN
±2.8
±1.4
TYP
±3.2
±1.6
±1
-10
±1
1.2
2
1.00
1.00
2.01
2.01
dB
dB
%
mA
mA
V
V
Ω
Ω
mA
V/V
±5
±3
MAX
UNITS
V
mV
µV/°C
µA
MΩ
pF
V
CC
= ±4.5V to ±5.5V, V
EE
= -5.0V
V
EE
= ±4.5V to ±5.5V, V
CC
= 5.0V
A
VCL
= +2, V
OUT
= ±1mV to ±2V
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
2
_______________________________________________________________________________________
375MHz Quad Closed-Loop
Video Buffers, A
V
= +1 and +2
AC ELECTRICAL CHARACTERISTICS
(V
CC
= +5V, V
EE
= -5V, V
IN
= 0V, R
L
= 100Ω, T
A
= +25°C.)
PARAMETER
Small-Signal -3dB Bandwidth
Small-Signal -3dB Bandwidth
BW
-3dB
SYMBOL
MAX496CSE
MAX496CPE
MAX497CSE
MAX497CPE
Full-Power Bandwidth
Slew Rate
Settling Time
Differential Gain Error
Differential Phase Error
Input Noise Voltage Density
Input Noise Current Density
FPBW
SR
t
s
DG
DP
V
OUT
= ±2V
MAX496
MAX497
CONDITIONS
MIN
TYP
375
375
275
275
230
215
1600
1500
12
0.01
0.01
5.6
2
MAX496CPE
Gain Flatness
±0.1dB
MAX496CSE
MAX497CPE
MAX497CSE
Adjacent Channel Crosstalk
All-Hostile Crosstalk
Total Harmonic Distortion
Spurious-Free Dynamic Range
THD
SFDR
(Note 4)
(Note 4)
f
C
= 10MHz,
V
OUT
= 2Vp-p
f
C
= 5MHz
MAX496
MAX497
MAX496
MAX497
MAX496
MAX497
MAX496
MAX497
80
80
100
120
78
72
72
65
-64
-58
58
60
dB
dB
dBc
dBc
MHz
MHz
V/µs
ns
%
degrees
nV√Hz
pA√Hz
MHz
MAX
UNITS
MAX496/MAX497
V
OUT
= 4V step, MAX496
V
OUT
= 4V step, MAX497
0.1% (V
OUT
= 2V step)
f = 3.58MHz (Note 3)
f = 3.58MHz (Note 3)
f = 10MHz
f = 10MHz
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
= 150Ω, see Figure 2.
Note 4:
Input of channel under test grounded through 75Ω. Adjacent channel driven at f = 10MHz (Figure 4a). For All-Hostile
Crosstalk, all inputs are driven except the channel under test (Figure 4b).
_______________________________________________________________________________________
3
375MHz Quad Closed-Loop
Video Buffers, A
V
= +1 and +2
MAX496/MAX497
__________________________________________Typical Operating Characteristics
(V
CC
= +5V, V
EE
= -5V, R
L
= 100Ω, T
A
= +25°C, unless otherwise noted.)
MAX496
SMALL-SIGNAL GAIN vs. FREQUENCY
MAX496/97-01
MAX496
GAIN FLATNESS vs. FREQUENCY
MAX496/97-02
MAX496
LARGE-SIGNAL GAIN vs. FREQUENCY
1
0
-1
GAIN (dB)
-2
-3
-4
-5
-6
-7
-8
MAX496/97-03
2
1
0
-1
GAIN (dB)
-2
-3
-4
-5
-6
-7
-8
1M
10M
100M
0.2
0.1
0
-0.1
GAIN (dB)
-0.2
-0.3
-0.4
-0.5
-0.6
-0.7
-0.8
2
1G
1M
10M
100M
1G
1M
10M
100M
1G
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
MAX497
SMALL-SIGNAL GAIN vs. FREQUENCY
MAX496/97-04
MAX497
GAIN FLATNESS vs. FREQUENCY
6.1
6.0
5.9
GAIN (dB)
GAIN (dB)
5.8
5.7
5.6
5.5
5.4
5.3
5.2
DIP
SO
MAX496/97-05
MAX497
LARGE-SIGNAL GAIN vs. FREQUENCY
7
6
5
4
3
2
1
0
-1
-2
MAX496/97-06
9
8
7
6
GAIN (dB)
5
4
3
2
1
0
-1
1M
10M
100M
6.2
8
1G
1M
10M
100M
1G
1M
10M
100M
1G
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
MAX496
SMALL-SIGNAL GAIN vs. FREQUENCY
DRIVING A 50Ω LOAD
MAX496/97-07
MAX497
SMALL-SIGNAL GAIN vs. FREQUENCY
DRIVING A 50Ω LOAD
MAX496/97-08
TOTAL HARMONIC DISTORTION (THD)
vs. FREQUENCY
-10
-20
DISTORTION (dB)
-30
MAX497
-40
-50
-60
-70
-80
-90
MAX496
V
OUT
= 2Vp-p
MAX496/97-09
2
1
0
-1
GAIN (dB)
-2
-3
-4
-5
-6
-7
-8
1M
10M
100M
8
7
6
5
GAIN (dB)
4
3
2
1
0
-1
-2
0
1G
1M
10M
100M
1G
10k
100k
1M
10M
100M
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
4
_______________________________________________________________________________________
375MHz Quad Closed-Loop
Video Buffers, A
V
= +1 and +2
_____________________________Typical Operating Characteristics (continued)
(V
CC
= +5V, V
EE
= -5V, R
L
= 100Ω, T
A
= +25°C, unless otherwise noted.)
MAX496/MAX497
MAX496
CROSSTALK vs. FREQUENCY
MAX496/97-10
MAX497
CROSSTALK vs. FREQUENCY
MAX496/97-11
POWER-SUPPLY REJECTION (PSR)
vs. FREQUENCY
POWER-SUPPLY REJECTION (dB)
-20
-30
MAX497
-40
-50
-60
-70
-80
-90
-100
20k
100k
MAX496
1M
10M
100M
MAX496/97-12
-10
-20
-30
CROSSTALK (dB)
ALL-HOSTILE
0
-10
-20
CROSSTALK (dB)
-30
-40
-50
-60
-70
-80
-90
-100
ALL-HOSTILE
ADJACENT CHANNEL
-10
-40
-50
-60
-70
-80
-90
-100
-110
1
10
FREQUENCY (MHz)
100
200
ADJACENT CHANNEL
1M
10M
100M
1G
FREQUENCY (Hz)
FREQUENCY (Hz)
MAX496
GAIN MATCH vs. FREQUENCY
MAX496/97-13a
MAX497
GAIN MATCH vs. FREQUENCY
0.4
0.3
GAIN MATCH (dB)
0.2
0.1
0
-0.1
-0.2
-0.3
-0.4
-0.5
CH 3–CH 0
CH 3–CH 2
CH 2–CH 1
1M
10M
100M
1G
CH 2–CH 0
CH 1–CH 0
GAIN (V/V)
CH 3–CH 1
MAX496/97-13b
MAX496
GAIN vs. TEMPERATURE
0.999
0.998
0.997
0.996
0.995
0.994
0.993
0.992
0.991
0.990
-40
-20
0
20
40
60
80
100
V
IN
= -1.0V
V
IN
= -1.0V
MAX496/97-14
0.3
0.2
0.1
GAIN MATCH (dB)
0.0
-0.1
-0.2
-0.3
-0.4
-0.5
-0.6
-0.7
1M
10M
100M
CH 3–CH 2
CH 1–CH 0
CH 3–CH 0
CH 2–CH 0
CH 3–CH 1
CH 2–CH 1
0.5
1.000
1G
FREQUENCY (Hz)
FREQUENCY (Hz)
TEMPERATURE (°C)
MAX497
GAIN vs. TEMPERATURE
MAX496/97-15
INPUT OFFSET VOLTAGE
vs. TEMPERATURE
MAX496/97-16
SUPPLY CURRENT
vs. TEMPERATURE
38
SUPPLY CURRENT (mA)
36
34
32
30
28
26
24
22
20
I
CC
I
EE
R
L
= NO LOAD
MAX496/97-17
2.05
2.04
2.03
2.02
GAIN (V/V)
2.01
2.00
1.99
1.98
1.97
1.96
1.95
-40
-20
0
20
40
60
80
V
IN
= -1.0V
V
IN
= +1.0V
0.30
0.20
OFFSET VOLTAGE (mV)
0.10
0
-0.10
-0.20
-0.30
40
100
-40
-20
0
20
40
60
80
100
-10
0
10
20 30
40
50
60 70 80
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
_______________________________________________________________________________________
5
Linux开发
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
