General Description
The MAX9502 small, low-power video amplifier with inte-
grated reconstruction filter operates from a supply voltage
as low as 2.5V. The small size and the low minimum sup-
ply voltage make the MAX9502 ideal for portable applica-
tions 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 digital-
toanalog 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.
Applications
●Mobile Phones
● Digital Still Cameras
●Portable Video
● Security/CCTV
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)
Pin Configurations appear at end of data sheet.
Ordering Information continued at end of data sheet.
19-3674; Rev 2; 5/14
+Denotes lead-free package.
PRODUCT FEATURES
MAX9503 DirectDrive™, LPF, TQFN
MAX9505 DirectDrive, LPF, analog switch, TQFN
MAX4090 Input clamp, µDFN, SOT23, SC70
MAX9504 Optional DC offset bias, µDFN, SOT23
PART PIN-PACKAGE TEMP RANGE GAIN TOP MARK
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
MAX9502GEXK+T 5 SC70-5 -40°C to +85°C +6 ARV
MAX9502
VIDEO AMP
GAIN = +6dB
MAX9502G
GAIN = +12dB
MAX9502M
SHUTDOWN
CIRCUIT
LOWPASS
FILTER Z0 = 75Ω
75Ω
OUT
GND
75Ω TELEVISION
SHDN
IN
ON
OFF
VIDEO
DAC
VIDEO
ASIC
0.1µF
VCC
MAX9502 2.5V Video Amplifier with Reconstruction Filter
Typical Operating Circuit
Other Portable Video Ampliers
Ordering Information
EVALUATION KIT AVAILABLE
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
(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 SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage Range VCC Guaranteed by PSRR 2.5 3.6 V
Quiescent Supply Current ICC
VIN = 0V, 2.5V ≤ VCC ≤ 3.6V, SHDN = VCC,
TA = -40°C to +85°C 5.3 9
mA
VIN = 0V, 2.5V ≤ VCC ≤ 3.6V, SHDN = VCC,
TA = -40°C to +125°C 11
Shutdown Supply Current ISHDN VSHDN = 0V 0.01 1 µA
Input Voltage Range VIN
Guaranteed by DC
voltage gain (MAX9502G)
VCC = 2.5V 0 1.05
V
VCC = 3.0V 0 1.2
Guaranteed by DC
voltage gain (MAX9502M)
VCC = 2.5V 0 0.525
VCC = 3.0V 0 0.6
Input Current IIN VIN = 0V 3.5 10 µA
Input Resistance RIN ∆VIN/∆IIN 17 MΩ
DC Voltage Gain (Note 2) AVRL = 150Ω to GND,
VCC = 2.5V to 3V
MAX9502G 5.5 6 6.5 dB
MAX9502M 11.5 12 12.5
Output Sync-Tip Level VSTIP Measured at OUT, VIN = 0V,
RL = 150Ω to GND 110 230 mV
Output Voltage Swing VOUT
MAX9502G,
RL = 150Ω to GND
VCC = 2.5V,
0 ≤ VIN ≤ 1.05V 1.97 2.1 2.23
VP-P
VCC = 3.0V,
0 ≤ VIN ≤ 1.2V 2.26 2.4 2.54
MAX9502M,
RL = 150Ω to GND
VCC = 2.5V,
0 ≤ VIN ≤ 0.525V 1.97 2.1 2.23
VCC = 3.0V,
0 ≤ VIN ≤ 0.6V 2.26 2.4 2.54
Output Short-Circuit Current
Threshold ISC Sourcing (Note 3) 95 mA
Output Resistance ROUT 0.15 Ω
Shutdown Output Impedance ROUT(OFF) VSHDN = 0V 4 kΩ
DC Power-Supply Rejection Ratio PSRRDC VIN = 0V, 2.5V ≤ VCC ≤ 3.6V 50 90 dB
LOGIC INPUTS (SHDN)
Logic-Low Level VIL
TA = -40°C to +85°C 0.8 V
TA = -40°C to +125°C 0.65
Logic-High Level VIH 2.0 V
Logic Input Current IIL SHDN = GND and VCC 1 µA
MAX9502 2.5V Video Amplier with Reconstruction Filter
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Absolute Maximum Ratings
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, RL = 150Ω to GND, TA = +25°C, unless otherwise noted.) (Note 1)
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.
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Passband Flatness VOUT = 2VP-P, f = 100kHz to 5.5MHz,
atness is referred to 100kHz -1 +1 dB
Attenuation fdt VOUT = 2VP-P, attenuation is
referred to 100kHz
f = 8MHz 3 dB
f = 27MHz 35 55
Power-Supply Rejection Ratio PSRR f = 100kHz 56 dB
Output Impedance ZOUT VOUT = 1.5V DC; f = 5MHz 2.5 Ω
Differential Gain Error DG NTSC, VOUT = 2VP-P
MAX9502G 0.4 %
MAX9502M 0.4
Differential Phase Error DP NTSC, VOUT = 2VP-P
MAX9502G 0.4 degrees
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 %
Group-Delay Variation ∆(dj/dw)f = 100kHz to 5.5MHz MAX9502G 30 ns
MAX9502M 30
Peak Signal to RMS Noise SNR VOUT = 2VP-P, 100kHz to
5MHz
MAX9502G 68 dB
MAX9502M 65
Enable Time tON VSHDN = 3V, VOUT settled to
within 1% of the nal voltage
MAX9502G
(VIN = 1V) 800
ns
MAX9502M
(VIN = 0.5V) 800
Disable Time tOFF
VSHDN = 0V, VOUT settled
to below 1% of the output
voltage
MAX9502G
(VIN = 1V) 220
ns
MAX9502M
(VIN = 0.5V) 175
MAX9502 2.5V Video Amplier with Reconstruction Filter
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AC Electrical Characteristics
VCC = SHDN = 3.0V, GND = 0V, RL = 150Ω to GND.)
MAX9502M
SMALL-SIGNAL BANDWIDTH
MAX9502 toc02
FREQUENCY (MHz)
RESPONSE (dB)
101
-50
-40
-30
-20
-10
0
10
20
-60
0.1 100
VOUT = 100mVP-P
MAX9502G
SMALL-SIGNAL GAIN FLATNESS
MAX9502 toc03
FREQUENCY (MHz)
RESPONSE (dB)
1
4
5
6
7
8
9
3
0.1 10
VOUT = 100mVP-P
MAX9502M
SMALL-SIGNAL GAIN FLATNESS
MAX9502 toc04
FREQUENCY (MHz)
RESPONSE (dB)
1
10
11
12
13
14
15
9
0.1 10
VOUT = 100mVP-P
MAX9502G
LARGE-SIGNAL BANDWIDTH
MAX9502 toc05
FREQUENCY (MHz)
RESPONSE (dB)
1010.1 100
VOUT = 2VP-P
-50
-40
-30
-20
-10
0
10
20
-60
MAX9502M
LARGE-SIGNAL BANDWIDTH
MAX9502 toc06
FREQUENCY (MHz)
RESPONSE (dB)
101
-50
-40
-30
-20
-10
0
10
20
-60
0.1 100
VOUT = 2VP-P
MAX9502G
LARGE-SIGNAL GAIN FLATNESS
MAX9502 toc07
FREQUENCY (MHz)
RESPONSE (dB)
1
4
5
6
7
8
9
3
0.1 10
VOUT = 2VP-P
MAX9502G
SMALL-SIGNAL BANDWIDTH
MAX9502 toc01
FREQUENCY (MHz)
RESPONSE (dB)
101
-50
-40
-30
-20
-10
0
10
20
-60
0.1 100
VOUT = 100mVP-P
MAX9502M
LARGE-SIGNAL GAIN FLATNESS
MAX9502 toc08
FREQUENCY (MHz)
RESPONSE (dB)
1
10
11
12
13
14
15
9
0.1 10
VOUT = 2VP-P
MAX9502G
GROUP DELAY
MAX9502 toc09
FREQUENCY (MHz)
DELAY (ns)
1
60
80
100
120
140
160
180
200
40
0.1 10
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MAX9502 2.5V Video Amplier with Reconstruction Filter
Typical Operating Characteristics
VCC = SHDN = 3.0V, GND = 0V, RL = 150Ω to GND.)
MAX9502M
GROUP DELAY
MAX9502 toc10
FREQUENCY (MHz)
DELAY (ns)
1
60
80
100
120
140
160
180
200
40
0.1 10
MAX9502G
POWER-SUPPLY REJECTION RATIO
MAX9502 toc11
FREQUENCY (MHz)
RESPONSE (dB)
10.10.001 0.01
-90
-80
-70
-50
-60
-40
-30
-20
-10
0
-100
0.0001 10
MAX9502M
POWER-SUPPLY REJECTION RATIO
MAX9502 toc12
FREQUENCY (MHz)
RESPONSE (dB)
10.10.001 0.01
-90
-70
-80
-60
-50
-40
-30
-20
-10
0
-100
0.0001 10
SUPPLY CURRENT vs. TEMPERATURE
MAX9502 toc13
TEMPERATURE (°C)
SUPPLY CURRENT (mA)
6035-15 10
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7.0
3.0
-40 85
MAX9502G
MAX9502M
SUPPLY CURRENT
vs. SHDN INPUT VOLTAGE
MAX9502 toc14
SHDN INPUT VOLTAGE (V)
SUPPLY CURRENT (mA)
2.52.01.51.00.5
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
0
0 3.0
VSHDN = RISING
SHUTDOWN LOGIC THRESHOLD
vs. SUPPLY VOLTAGE
MAX9502 toc15
SUPPLY VOLTAGE (V)
SHUTDOWN LOGIC THRESHOLD (V)
3.53.43.33.23.13.02.92.82.72.6
0.5
1.0
1.5
2.0
2.5
3.0
0
2.5 3.6
VSHDN = RISING
MAX9502G
VOLTAGE GAIN vs. TEMPERATURE
MAX9502 toc16
TEMPERATURE (°C)
GAIN (dB)
603510-15
5.7
5.9
6.1
6.3
6.5
5.5
-40 85
MAX9502M
VOLTAGE GAIN vs. TEMPERATURE
MAX9502 toc17
TEMPERATURE (°C)
GAIN (dB)
603510-15
11.7
11.9
12.1
12.3
12.5
11.5
-40 85
MAX9502G
DIFFERENTIAL GAIN AND PHASE
MAX9502 toc18
DIFFERENTIAL GAIN (%)
65432
0.2
0.1
-0.3
-0.1
0.4
-0.4
1 7
DIFFERENTIAL PHASE (deg)
65432
0.4
0
-0.4
0.8
-0.8
1 7
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MAX9502 2.5V Video Amplier with Reconstruction Filter
Typical Operating Characteristics (continued)
VCC = SHDN = 3.0V, GND = 0V, RL = 150Ω to GND.)
MAX9502G
2T RESPONSE
MAX9502 toc20
IN
200mV/div
OUT
400mV/div
100ns/div
MAX9502M
2T RESPONSE
MAX9502 toc21
OUT
400mV/div
IN
100mV/div
100ns/div
MAX9502G
MODULATED 12.5T RESPONSE
MAX9502 toc22
IN
200mV/div
OUT
400mV/div
400ns/div
MAX9502M
MODULATED 12.5T RESPONSE
MAX9502 toc23
OUT
400mV/div
IN
100mV/div
400ns/div
MAX9502M
DIFFERENTIAL GAIN AND PHASE
MAX9502 toc19
DIFFERENTIAL GAIN (%)
65432
0.2
0
-0.2
0.4
-0.4
1 7
DIFFERENTIAL PHASE (deg)
65432
0.4
0
-0.4
0.8
-0.8
1 7
MAX9502G
NTC-7 COMPOSITE RESPONSE
MAX9502 toc24
IN
500mV/div
0V
0V
OUT
1V/div
10µs/div
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MAX9502 2.5V Video Amplier with Reconstruction Filter
Typical Operating Characteristics (continued)
VCC = SHDN = 3.0V, GND = 0V, RL = 150Ω to GND.)
PIN NAME FUNCTION
µDFN SC70
1 1 IN Video Input
2 2 GND Ground
3 3 SHDN 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
MAX9502M
NTC-7 COMPOSITE RESPONSE
MAX9502 toc25
OUT
1V/div
IN
250mV/div
10µs/div
0V
0V
MAX9502G
MULTIBURST RESPONSE
MAX9502 toc26
OUT
1V/div
IN
500mV/div
10µs/div
0V
0V
MAX9502M
MULTIBURST RESPONSE
MAX9502 toc27
OUT
1V/div
IN
250mV/div
10µs/div
0V
0V
MAX9502G
FIELD SQUARE-WAVE RESPONSE
MAX9502 toc28
OUT
1V/div
IN
500mV/div
2ms/div
0V
0V
MAX9502M
FIELD SQUARE-WAVE RESPONSE
MAX9502 toc29
OUT
1V/div
IN
250mV/div
2ms/div
0V
0V
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MAX9502 2.5V Video Amplier with Reconstruction Filter
Typical Operating Characteristics (continued)
Pin Description
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 pro-
vides a fixed gain of +6dB, while the MAX9502M output
buffer provides a fixed gain of +12dB.
Filter
The MAX9502 contains a 4th-order Chebyshev recon-
struction filter. The Chebyshev-type response features a
0.4dB flat passband for NTSC and PAL signals. The stop-
band offers 55dB (typ) of attenuation at 27MHz and above
(see the Typical Operating Characteristics).
Output Amplier
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
2.4V
P-P
signal into a 150Ω video load to ground. The out-
put 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 short-
circuited 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.
Applications Information
Input Considerations
The MAX9502 input is DC-coupled. When the supply volt-
age 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 current-
output 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 con-
nects 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.
MAX9502 2.5V Video Amplier with Reconstruction Filter
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+Denotes lead-free package.
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
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
TOP VIEW
SC70
GND
VCC
SHDN
15OUTIN
MAX9502
2
34
GND
VCC
1
6
OUT
5
N.C.
IN
MAX9502
µDFN
2 3
4
SHDN
MAX9502 2.5V Video Amplier with Reconstruction Filter
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Ordering Information (continued)
Pin Congurations Chip Information
PROCESS: BiCMOS
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.
REVISION
NUMBER
REVISION
DATE DESCRIPTION PAGES
CHANGED
25/14 Removed automotive reference in Applications section 1
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 specications 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.
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MAX9502 2.5V Video Amplier with Reconstruction Filter
Revision History
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