EVALUATION KIT AVAILABLE
MAX9502
2.5V Video Amplifier with Reconstruction Filter
General Description
The MAX9502 small, low-power video amplifier with integrated reconstruction filter operates from a supply voltage
as low as 2.5V. The small size and the low minimum supply voltage make the MAX9502 ideal for portable applications or small, low-power applications.
The MAX9502 DC-couples the input and the output,
resulting in a very small solution. The MAX9502 input
can be directly connected to the output of a video digitaltoanalog converter (DAC). The reconstruction filter is
implemented as a 4th-order Chebyshev with a minimum
passband of 5.5MHz, 3dB attenuation at 8MHz, and 55dB
attenuation at 27MHz.
The output amplifier provides a closed-loop gain of +6dB
(MAX9502G) or +12dB (MAX9502M), and can drive a 2VP-P
video signal into a 150Ω load to ground. The output signal
is level-shifted so the sync tip is 110mV (typ) above ground.
The MAX9502 operates from a 2.5V to 3.6V single supply and
consumes only 5.3mA quiescent supply current. An active-low
shutdown mode reduces the supply current to 0.01μA.
The MAX9502 is available in tiny 6-pin μDFN (1mm x
1.5mm x 0.8mm) and 5-pin SC70 packages. The device
is specified over the -40°C to +85°C extended and -40°C
to +125°C automotive temperature ranges.
Features
●● Tiny 6-Pin μDFN (1mm x 1.5mm x 0.8mm) and 5-Pin
SC70 Packages
●● DC-Coupled Input and Output Save Board Space
●● 4-Pole Chebyshev Filter
●● 5.5MHz Passband
●● 55dB Attenuation at 27MHz
●● 0.01μA Low-Current Shutdown Mode
●● 2.5V to 3.6V Single-Supply Operation
●● Video Amplifier with Fixed Gains of +6dB
(MAX9502G) or +12dB (MAX9502M)
Typical Operating Circuit
VCC
0.1µF
MAX9502
OFF
ON
SHDN
SHUTDOWN
CIRCUIT
IN
LOWPASS
FILTER
VIDEO
ASIC
VIDEO
DAC
GAIN = +12dB
MAX9502M
OUT
VIDEO AMP
75Ω
Z0 = 75Ω
75Ω TELEVISION
Applications
●●
●●
●●
●●
GAIN = +6dB
MAX9502G
GND
Mobile Phones
Digital Still Cameras
Portable Video
Security/CCTV
Other Portable Video Amplifiers
PRODUCT
Pin Configurations appear at end of data sheet.
FEATURES
MAX9503
DirectDrive™, LPF, TQFN
MAX9505
DirectDrive, LPF, analog switch, TQFN
MAX4090
Input clamp, µDFN, SOT23, SC70
MAX9504
Optional DC offset bias, µDFN, SOT23
Ordering Information
PART
PIN-PACKAGE
TEMP RANGE
GAIN
MAX9502GAALT+T
6 µDFN-6
-40°C to +125°C
+6
LI
MAX9502GAAXK+T
5 SC70-5
-40°C to +125°C
+6
ASO
MAX9502GELT+T
6 µDFN-6
-40°C to +85°C
+6
AU
-40°C to +85°C
+6
ARV
MAX9502GEXK+T
5 SC70-5
Ordering Information continued at end of data sheet.
+Denotes lead-free package.
19-3674; Rev 2; 5/14
TOP MARK
MAX9502
2.5V Video Amplifier with Reconstruction Filter
Absolute Maximum Ratings
VCC to GND..............................................................-0.3V to +4V
SHDN, IN, OUT to GND..............................-0.3V to (VCC + 0.3V)
OUT Short-Circuit Duration to VCC, GND……............Continuous
Continuous Power Dissipation (TA = +70°C)
5-Pin SC70 (derate 3.1mW/°C above +70°C).. …….. .247mW
6-Pin μDFN (derate 2.1mW/°C above +70°C).. ……...168mW
Operating Temperature Ranges:
MAX9502GE/ME..............................................-40°C to +85°C
MAX9502GA/MA............................................-40°C to +125°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+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
(VCC = SHDN = 3.0V, GND = 0V, no load, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C, unless otherwise
noted.) (Note 1)
PARAMETER
Supply Voltage Range
SYMBOL
CONDITIONS
VCC
Guaranteed by PSRR
Quiescent Supply Current
ICC
VIN = 0V, 2.5V ≤ VCC ≤ 3.6V, SHDN = VCC,
TA = -40°C to +85°C
VIN = 0V, 2.5V ≤ VCC ≤ 3.6V, SHDN = VCC,
TA = -40°C to +125°C
Shutdown Supply Current
ISHDN
VIN
TYP
2.5
5.3
0.01
1.2
0
0.525
0
0.6
Guaranteed by DC
voltage gain (MAX9502M) V
CC = 3.0V
3.5
∆VIN/∆IIN
17
DC Voltage Gain (Note 2)
AV
RL = 150Ω to GND,
VCC = 2.5V to 3V
VOUT
MAX9502M,
RL = 150Ω to GND
Shutdown Output Impedance
DC Power-Supply Rejection Ratio
5.5
6
6.5
11.5
12
12.5
110
230
1.97
2.1
2.23
2.26
2.4
2.54
1.97
2.1
2.23
2.26
2.4
2.54
VCC = 2.5V,
0 ≤ VIN ≤ 1.05V
VCC = 3.0V,
0 ≤ VIN ≤ 1.2V
VCC = 2.5V,
0 ≤ VIN ≤ 0.525V
VCC = 3.0V,
0 ≤ VIN ≤ 0.6V
Sourcing (Note 3)
ROUT(OFF) VSHDN = 0V
VIN = 0V, 2.5V ≤ VCC ≤ 3.6V
50
mA
µA
V
µA
MΩ
MAX9502M
ROUT
PSRRDC
10
MAX9502G
Measured at OUT, VIN = 0V,
RL = 150Ω to GND
MAX9502G,
RL = 150Ω to GND
Output Resistance
1
0
VIN = 0V
ISC
9
VCC = 2.5V
IIN
Output Short-Circuit Current
Threshold
V
Guaranteed by DC
voltage gain (MAX9502G) V
CC = 3.0V
RIN
Output Voltage Swing
3.6
1.05
Input Resistance
VSTIP
UNITS
0
Input Current
Output Sync-Tip Level
MAX
11
VSHDN = 0V
VCC = 2.5V
Input Voltage Range
MIN
dB
mV
VP-P
95
mA
0.15
Ω
4
kΩ
90
dB
LOGIC INPUTS (SHDN)
Logic-Low Level
VIL
Logic-High Level
VIH
Logic Input Current
IIL
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TA = -40°C to +85°C
0.8
TA = -40°C to +125°C
0.65
2.0
SHDN = GND and VCC
V
V
1
µA
Maxim Integrated │ 2
MAX9502
2.5V Video Amplifier with Reconstruction Filter
AC Electrical Characteristics
(VCC = SHDN = 3.0V, GND = 0V, RL = 150Ω to GND, TA = +25°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
MIN
VOUT = 2VP-P, f = 100kHz to 5.5MHz,
flatness is referred to 100kHz
Passband Flatness
Attenuation
CONDITIONS
fdt
VOUT = 2VP-P, attenuation is
referred to 100kHz
-1
f = 8MHz
f = 27MHz
TYP
3
35
55
MAX
UNITS
+1
dB
dB
Power-Supply Rejection Ratio
PSRR
f = 100kHz
56
dB
Output Impedance
ZOUT
VOUT = 1.5V DC; f = 5MHz
2.5
Ω
MAX9502G
0.4
MAX9502M
0.4
MAX9502G
0.4
MAX9502M
0.4
2T Pulse-to-Bar K Rating
2T = 250ns; bar time is 18µs; the beginning
2.5% and the ending 2.5% of the bar time
are ignored
0.2
K%
2T Pulse Response
2T = 250ns
0.3
K%
2T Bar Response
2T = 250ns; bar time is 18µs; the beginning
2.5% and the ending 2.5% of the bar time
are ignored
0.4
K%
Nonlinearity
5-step staircase
0.4
%
Line Time Distortion
0
%
Field Time Distortion
0
%
Differential Gain Error
DG
NTSC, VOUT = 2VP-P
Differential Phase Error
DP
NTSC, VOUT = 2VP-P
Group-Delay Variation
Peak Signal to RMS Noise
Enable Time
Disable Time
∆(dj/dw)
f = 100kHz to 5.5MHz
MAX9502G
30
MAX9502M
30
MAX9502G
68
MAX9502M
65
SNR
VOUT = 2VP-P, 100kHz to
5MHz
tON
MAX9502G
VSHDN = 3V, VOUT settled to (VIN = 1V)
within 1% of the final voltage MAX9502M
(VIN = 0.5V)
tOFF
VSHDN = 0V, VOUT settled
to below 1% of the output
voltage
%
degrees
ns
dB
800
ns
800
MAX9502G
(VIN = 1V)
220
MAX9502M
(VIN = 0.5V)
175
ns
Note 1: All devices are 100% production tested at TA = +25°C. Specifications over temperature limits are guaranteed by design.
Note 2: DC voltage gain (AV) is a two-point measurement in which the output voltage swing is divided by the input voltage swing.
Note 3: Short-circuit current is the trip current for the protection. During the protection, OUT is switched alternatively on and off.
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Maxim Integrated │ 3
MAX9502
2.5V Video Amplifier with Reconstruction Filter
Typical Operating Characteristics
VCC = SHDN = 3.0V, GND = 0V, RL = 150Ω to GND.)
10
10
-20
-30
-40
-10
-20
-30
6
5
1
10
-60
100
VOUT = 100mVP-P
0.1
1
10
3
100
10
FREQUENCY (MHz)
FREQUENCY (MHz)
MAX9502M
SMALL-SIGNAL GAIN FLATNESS
MAX9502G
LARGE-SIGNAL BANDWIDTH
MAX9502M
LARGE-SIGNAL BANDWIDTH
10
0
12
11
10
0
RESPONSE (dB)
RESPONSE (dB)
13
20
-10
-20
-30
-40
10
1
0.1
-60
10
-10
-20
-30
-40
-50
VOUT = 100mVP-P
MAX9502 toc06
20
MAX9502 toc04
14
-50
VOUT = 2VP-P
0.1
1
10
-60
100
VOUT = 2VP-P
0.1
1
10
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
MAX9502G
LARGE-SIGNAL GAIN FLATNESS
MAX9502M
LARGE-SIGNAL GAIN FLATNESS
MAX9502G
GROUP DELAY
14
100
MAX9502 toc09
8
200
MAX9502 toc08
15
MAX9502 toc07
9
1
0.1
FREQUENCY (MHz)
MAX9502 toc05
0.1
4
-50
VOUT = 100mVP-P
15
9
7
-40
-50
RESPONSE (dB)
RESPONSE (dB)
-10
-60
VOUT = 100mVP-P
8
0
RESPONSE (dB)
RESPONSE (dB)
0
MAX9502G
SMALL-SIGNAL GAIN FLATNESS
9
MAX9502 toc02
20
MAX9502 toc01
20
MAX9502M
SMALL-SIGNAL BANDWIDTH
MAX9502 toc03
MAX9502G
SMALL-SIGNAL BANDWIDTH
180
6
5
13
DELAY (ns)
RESPONSE (dB)
RESPONSE (dB)
160
7
12
11
140
120
100
80
4
3
10
VOUT = 2VP-P
0.1
1
FREQUENCY (MHz)
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10
9
60
VOUT = 2VP-P
0.1
1
FREQUENCY (MHz)
10
40
0.1
1
10
FREQUENCY (MHz)
Maxim Integrated │ 4
MAX9502
2.5V Video Amplifier with Reconstruction Filter
Typical Operating Characteristics (continued)
VCC = SHDN = 3.0V, GND = 0V, RL = 150Ω to GND.)
-20
RESPONSE (dB)
140
120
100
80
1
0.1
-50
-60
-70
-80
-90
0.001
0.01
0.1
1
-100
0.0001
10
0.001
0.01
0.1
1
10
SUPPLY CURRENT
vs. SHDN INPUT VOLTAGE
SHUTDOWN LOGIC THRESHOLD
vs. SUPPLY VOLTAGE
MAX9502G
MAX9502M
5.0
4.5
4.0
1.0
0.5
0
10
35
60
85
0
0.5
1.0
1.5
2.0
2.5
2.0
1.5
1.0
0.5
0
3.0
2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6
SHDN INPUT VOLTAGE (V)
SUPPLY VOLTAGE (V)
MAX9502G
VOLTAGE GAIN vs. TEMPERATURE
MAX9502M
VOLTAGE GAIN vs. TEMPERATURE
MAX9502G
DIFFERENTIAL GAIN AND PHASE
6.3
12.5
12.3
GAIN (dB)
6.1
5.9
5.7
12.1
11.9
11.7
-40
2.5
TEMPERATURE (°C)
MAX9502 toc16
6.5
-15
3.5
3.0
2.5
2.0
1.5
VSHDN = RISING
-15
10
35
TEMPERATURE (°C)
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60
85
11.5
-40
-15
10
35
60
85
0.4
0.2
0.1
-0.1
-0.3
-0.4
MAX9502 toc18
-40
5.0
4.5
4.0
3.0
DIFFERENTIAL PHASE (deg) DIFFERENTIAL GAIN (%)
5.5
VSHDN = RISING
SHUTDOWN LOGIC THRESHOLD (V)
6.0
5.5
MAX9502 toc15
SUPPLY CURRENT vs. TEMPERATURE
MAX9502 toc14
FREQUENCY (MHz)
SUPPLY CURRENT (mA)
SUPPLY CURRENT (mA)
-70
-40
FREQUENCY (MHz)
3.5
GAIN (dB)
-60
-100
0.0001
10
6.0
5.5
-50
-30
FREQUENCY (MHz)
6.5
3.0
-40
-90
MAX9502 toc13
7.0
-20
-80
60
40
-30
MAX9502 toc17
DELAY (ns)
160
-10
RESPONSE (dB)
180
-10
MAX9502M
POWER-SUPPLY REJECTION RATIO
0
MAX9502 toc11
0
MAX9502 toc10
200
MAX9502G
POWER-SUPPLY REJECTION RATIO
MAX9502 toc12
MAX9502M
GROUP DELAY
1
2
3
4
5
6
7
1
2
3
4
5
6
7
0.8
0.4
0
-0.4
-0.8
TEMPERATURE (°C)
Maxim Integrated │ 5
MAX9502
2.5V Video Amplifier with Reconstruction Filter
Typical Operating Characteristics (continued)
MAX9502M
DIFFERENTIAL GAIN AND PHASE
MAX9502G
2T RESPONSE
0.4
MAX9502 toc20
MAX9502 toc19
DIFFERENTIAL PHASE (deg) DIFFERENTIAL GAIN (%)
VCC = SHDN = 3.0V, GND = 0V, RL = 150Ω to GND.)
0.2
0
IN
200mV/div
-0.2
-0.4
2
1
3
4
5
6
7
0.8
OUT
400mV/div
0.4
0
-0.4
-0.8
2
1
3
4
5
MAX9502M
2T RESPONSE
6
7
MAX9502 toc21
100ns/div
MAX9502G
MODULATED 12.5T RESPONSE
MAX9502 toc22
IN
100mV/div
IN
200mV/div
OUT
400mV/div
OUT
400mV/div
100ns/div
400ns/div
MAX9502M
MODULATED 12.5T RESPONSE
MAX9502G
NTC-7 COMPOSITE RESPONSE
MAX9502 toc23
MAX9502 toc24
IN
100mV/div
IN
500mV/div
0V
OUT
1V/div
OUT
400mV/div
0V
400ns/div
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10µs/div
Maxim Integrated │ 6
MAX9502
2.5V Video Amplifier with Reconstruction Filter
Typical Operating Characteristics (continued)
VCC = SHDN = 3.0V, GND = 0V, RL = 150Ω to GND.)
MAX9502M
NTC-7 COMPOSITE RESPONSE
MAX9502G
MULTIBURST RESPONSE
MAX9502 toc25
MAX9502M
MULTIBURST RESPONSE
MAX9502 toc26
MAX9502 toc27
IN
250mV/div
0V
IN
500mV/div
0V
IN
250mV/div
0V
OUT
1V/div
OUT
1V/div
OUT
1V/div
0V
0V
0V
10µs/div
10µs/div
10µs/div
MAX9502M
FIELD SQUARE-WAVE RESPONSE
MAX9502G
FIELD SQUARE-WAVE RESPONSE
MAX9502 toc29
MAX9502 toc28
IN
500mV/div
IN
250mV/div
0V
0V
OUT
1V/div
OUT
1V/div
0V
0V
2ms/div
2ms/div
Pin Description
PIN
NAME
µDFN
SC70
1
1
2
2
GND
3
3
SHDN
IN
FUNCTION
Video Input
Ground
Active-Low Shutdown Input. Connect to GND to shutdown.
4
4
VCC
Positive Power Supply
5
—
N.C.
No Connection. Not internally connected.
6
5
OUT
Video Output
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Maxim Integrated │ 7
MAX9502
2.5V Video Amplifier with Reconstruction Filter
Detailed Description
The MAX9502 filters and amplifies the video DAC output
in applications such as digital still cameras and mobile
phones. The MAX9502 consists of a lowpass filter and
an output video buffer capable of driving a standard 150Ω
video load to ground. The MAX9502G output buffer provides a fixed gain of +6dB, while the MAX9502M output
buffer provides a fixed gain of +12dB.
Filter
The MAX9502 contains a 4th-order Chebyshev reconstruction filter. The Chebyshev-type response features a
0.4dB flat passband for NTSC and PAL signals. The stopband offers 55dB (typ) of attenuation at 27MHz and above
(see the Typical Operating Characteristics).
Output Amplifier
The MAX9502G features a +6dB gain, while the
MAX9502M features a +12dB gain. Operating from a 2.5V
to 3.0V supply, the output amplifier is able to drive a 2V
signal into a 150Ω video load to ground. Operating from a
3.0V to 3.6V supply, the output amplifier is able to drive a
2.4VP-P signal into a 150Ω video load to ground. The output is typically offset 110mV above ground to guarantee
linear operation of the amplifier. The MAX9502 output only
sources current; all loads should be connected to ground.
Short-Circuit Protection
The MAX9502 typical application circuit includes a 75Ω
back-termination resistor that limits short-circuit currents
for an external short applied at the video output. The
MAX9502 features internal output short-circuit protection
to prevent device damage in prototyping and applications
where the amplifier output can be directly shorted.
Short-circuit protection activates if the output is shortcircuited and the output current exceeds 95mA. During
short-circuit protection, the output of the MAX9502 is shut
off for 12μs and then turns on for 0.8μs. If the short is still
present, the MAX9502 output shuts off again. Extended
short circuits result in a pulsed output. The device
resumes normal operation after the short is removed.
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Applications Information
Input Considerations
The MAX9502 input is DC-coupled. When the supply voltage is between a 2.5V and 3V supply, the input voltage
range extends from ground to 1.05V for the MAX9502G
and from ground to 0.525V for the MAX9502M. When the
supply voltage is between 3V and 3.6V, the input voltage
range extends from ground to 1.2V for the MAX9502G and
from ground to 0.6V for the MAX9502M. The MAX9502G
accepts a composite video signal with a sync tip from 0
to 50mV and the MAX9502M accepts a composite video
signal with a sync tip from 0 to 25mV. A typical currentoutput DAC that operates from a single supply usually
creates a composite video signal with a sync tip very
close to ground. Hence, the DAC output can be directly
connected to the MAX9502 input. Keep the board trace as
short as possible to minimize parasitic stray capacitance
and prevent unintentional high-frequency attenuation.
Output Considerations
The MAX9502 output must be DC-coupled. No
AC-coupling capacitors are allowed. The MAX9502 connects directly to the video cable through a 75Ω series
backtermination resistor. The other end of the cable
should be properly terminated with a 75Ω resistor as well.
Because of this configuration, the peak-to-peak amplitude
as well as the DC level of the signal is divided by two. The
MAX9502 output signal is level-shifted up so the sync tip
is around 110mV.
Power-Supply Bypassing and Layout
Considerations
The MAX9502 operates from a single-supply voltage
down to 2.5V, allowing for low-power consumption.
Bypass VCC to GND with a 0.1μF capacitor. Place all
external components as close to the device as possible.
Maxim Integrated │ 8
MAX9502
2.5V Video Amplifier with Reconstruction Filter
Ordering Information (continued)
PART
PIN-PACKAGE
TEMP RANGE
GAIN
TOP MARK
MAX9502MAALT+T
6 µDFN-6
-40°C to +125°C
+12
LJ
MAX9502MAAXK+T
5 SC70-5
-40°C to +125°C
+12
ASP
MAX9502MELT+T
6 µDFN-6
-40°C to +85°C
+12
AV
MAX9502MEXK+T
5 SC70-5
-40°C to +85°C
+12
ARW
+Denotes lead-free package.
Pin Configurations
Chip Information
PROCESS: BiCMOS
TOP VIEW
OUT
N.C.
VCC
6
5
4
MAX9502
1
2
3
IN
GND
SHDN
µDFN
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IN
1
GND
2
SHDN
3
5
OUT
MAX9502
4
SC70
VCC
Package Information
For the latest package outline information and land patterns
(footprints), go to www.maximintegrated.com/packages. Note
that a “+”, “#”, or “-” in the package code indicates RoHS status
only. Package drawings may show a different suffix character, but
the drawing pertains to the package regardless of RoHS status.
PACKAGE
TYPE
PACKAGE
CODE
OUTLINE
NO.
LAND
PATTERN NO.
6 µDFN
L611+1
21-0147
90-0080
5 SC70
X5+1
21-0076
90-0188
Maxim Integrated │ 9
MAX9502
2.5V Video Amplifier with Reconstruction Filter
Revision History
REVISION
NUMBER
REVISION
DATE
2
5/14
DESCRIPTION
Removed automotive reference in Applications section
PAGES
CHANGED
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses
are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits)
shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
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