MAX4090

The MAX4090 3V/5V, 6dB video buffer with sync-tip clamp, and low-power shutdown mode is available in tiny SOT23 and SC70 packages. The MAX4090 is designed to drive DC-coupled, 150Ωback-terminated video loads in portable video applications such as digi-tal still cams, portable DVD players, digital camcorders,PDAs, video-enabled cell phones, portable game sys-tems, and notebook computers. The input clamp posi-tions the video waveform at the output and allows the MAX4090 to be used as a DC-coupled output driver.The MAX4090 operates from a single 2.7V to 5.5V sup-ply and consumes only 6.5mA of supply current. The low-power shutdown mode reduces the supply current to 150nA, making the MAX4090 ideal for low-voltage,battery-powered video applications.

The MAX4090 is available in tiny 6-pin SOT23 and SC70 packages and is specified over the extended -40°C to +85°C temperature range.

Applications

Portable Video/Game Systems/DVD Players Digital Camcorders/Televisions/Still Cameras PDAs

Video-Enabled Cell Phones Notebook Computers Portable/Flat-Panel Displays

Features

o Single-Supply Operation from 2.7V to 5.5V

o Input Sync-Tip Clamp o DC-Coupled Output

o Low-Power Shutdown Mode Reduces Supply Current to 150nA o Available in Space-Saving SOT23 and SC70Packages

MAX4090

3V/5V , 6dB Video Buffer with Sync-Tip Clamp

and 150nA Shutdown Current

________________________________________________________________Maxim Integrated Products 1

Pin Configuration

19-2813; Rev 1; 11/03

For pricing, delivery, and ordering information,please contact Maxim/Dallas Direct!at 1-888-629-42, or visit Maxim’s website at www.maxim-ic.com.

Block Diagram

M A X 4090

3V/5V , 6dB Video Buffer with Sync-Tip Clamp and 150nA Shutdown Current 2_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

DC ELECTRICAL CHARACTERISTICS

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.

Note 1:V CLP is the input clamp voltage as defined in the DC Electrical Characteristics table.

V CC to GND.............................................................-0.3V to +6V OUT, FB, SHDN to GND............................-0.3V to (V CC + 0.3V)IN to GND (Note 1) ...................................V CLP to (V CC + 0.3V)IN Short-Circuit Duration from -0.3V to V CLP ........................1min Output Short-Circuit Duration to V CC or GND ..........Continuous Continuous Power Dissipation (T A = +70°C)

6-Pin SOT23 (derate 8.7mW/°C above +70°C) ...........695mW 6-Pin SC70 (derate 3.1mW/°C above +70°C) .............245mW

Operating Temperature Range ..........................-40°C to +85°C Junction Temperature .....................................................+150°C Storage Temperature Range ............................-65°C to +150°C Lead Temperature (soldering, 10s) ................................+300°C

MAX4090

3V/5V , 6dB Video Buffer with Sync-Tip Clamp

and 150nA Shutdown Current

_______________________________________________________________________________________3

Note 3:Voltage gain (A V ) is referenced to the clamp voltage, i.e., an input voltage of V IN = V CLP + VI would produce an output volt-age of V OUT = V CLP + A V x VI.

Note 4:Droop is guaranteed by the Input Bias Current specification.

AC ELECTRICAL CHARACTERISTICS

(V CC = 3.0V, GND = 0V, FB shorted to OUT, C IN = 0.1µF, R IN = 75Ωto GND, R L = 150Ωto GND, SHDN = V CC , T A = +25°C, unless otherwise noted.)

M A X 4090

3V/5V , 6dB Video Buffer with Sync-Tip Clamp and 150nA Shutdown Current 4_______________________________________________________________________________________

Typical Operating Characteristics

(V CC = 3.0V, GND = 0V, FB shorted to OUT, C IN = 0.1µF, R IN = 75Ωto GND, R L = 150Ωto GND, SHDN = V CC , T A = +25°C, unless otherwise noted.)

SMALL-SIGNAL GAIN vs. FREQUENCY

FREQUENCY (Hz)G A I N (d B )

10M

1M

-5-4-3-2-10123-6

100k

100M

SMALL-SIGNAL GAIN FLATNESS

vs. FREQUENCY

FREQUENCY (Hz)

G A I N (d B )

10M

1M

-0.5-0.4-0.3-0.2-0.100.10.20.3-0.6

100k

100M

SMALL-SIGNAL GAIN

vs. FREQUENCY

FREQUENCY (Hz)

G A I N (d B )

10M

1M

-5-4-3

-2-10123

-6

100k

100M

SMALL-SIGNAL GAIN FLATNESS

vs. FREQUENCY

FREQUENCY (Hz)

G A I N (d B )

10M

1M

-0.5-0.4-0.3-0.2-0.100.10.20.3-0.6

100k

100M

LARGE-SIGNAL GAIN vs. FREQUENCY

FREQUENCY (Hz)

G A I N (d B )

10M

1M

-5-4-3-2-10123-6

100k

100M

LARGE-SIGNAL GAIN FLATNESS

vs. FREQUENCY

FREQUENCY (Hz)

G A I N (d B )

10M

1M

-0.5-0.4-0.3

-0.2-0.100.10.20.3

-0.6

100k

100M

LARGE-SIGNAL GAIN vs. FREQUENCY

FREQUENCY (Hz)

G A I N (d B )

10M

1M

-5-4-3-2-10123-6

100k

100M

LARGE-SIGNAL GAIN FLATNESS

vs. FREQUENCY

FREQUENCY (Hz)

G A I N (d B )

10M

1M

-0.5-0.4-0.3-0.2-0.100.10.20.3-0.6

100k

100M

POWER-SUPPLY REJECTION RATIO

vs. FREQUENCY

FREQUENCY (Hz)

P S R R (d B )

10M

1M 100k

-70-60

-50-40-30-20-100

-80

10k

100M

MAX4090

3V/5V , 6dB Video Buffer with Sync-Tip Clamp

and 150nA Shutdown Current

_______________________________________________________________________________________5

POWER-SUPPLY REJECTION RATIO

vs. FREQUENCY

FREQUENCY (Hz)

P S R R (d B )

10M

1M 100k

-70-60-50-40-30-20-100-80

10k

100M QUIESCENT SUPPLY CURRENT

vs. TEMPERATURE

TEMPERATURE (°C)S U P P L Y C U R R E N T (m A )

7550250-256.356.406.456.506.556.606.656.706.756.806.30

-50100CLAMP VOLTAGE vs. TEMPERATURE

TEMPERATURE (°C)

V C L A M P (V )

7550-250250.250.300.350.400.450.50

0.550.60

0.20

-50100

CLAMP VOLTAGE vs. TEMPERATURE

TEMPERATURE (°C)

V C L A M P (V )

75

50

-25

25

0.25

0.300.350.400.450.500.550.600.20

-50

100

VOLTAGE GAIN vs. TEMPERATURE

TEMPERATURE (°C)

G A I N (V /V )

75

50

25

-25

1.95

2.002.052.10

1.90

-50

100

VOLTAGE GAIN vs. TEMPERATURE

TEMPERATURE (°C)

G A I N (V /V )

75

50

25

-25

1.95

2.00

2.052.10

1.90

-50

100

OUTPUT VOLTAGE HIGH SWING

vs. TEMPERATURE

TEMPERATURE (°C)O U T P U T V O L T A G E H I G H (V )

7550250-252.12.22.32.42.52.62.72.82.93.02.0-50

100OUTPUT VOLTAGE HIGH SWING

vs. TEMPERATURE

TEMPERATURE (°C)

O U T P U T V O L T A G E H I G H (V )

7550250-254.14.24.34.44.54..74.84.95.0

4.0

-50100

LARGE-SIGNAL PULSE RESPONSE

MAX4090 toc18

V OUT 1V/div

V IN

500mV/div

10ns/div

Typical Operating Characteristics (continued)

(V CC = 3.0V, GND = 0V, FB shorted to OUT, C IN = 0.1µF, R IN = 75Ωto GND, R L = 150Ωto GND, SHDN = V CC , T A = +25°C, unless otherwise noted.)

M A X 4090

3V/5V , 6dB Video Buffer with Sync-Tip Clamp and 150nA Shutdown Current 6

_______________________________________________________________________________________

SMALL-SIGNAL PULSE RESPONSE

MAX4090 toc19

V OUT 50mV/div

V IN 25mV/div

10ns/div

Typical Operating Characteristics (continued)

(V CC = 3.0V, GND = 0V, FB shorted to OUT, C IN = 0.1µF, R IN = 75Ωto GND, R L = 150Ωto GND, SHDN = V CC , T A = +25°C, unless otherwise noted.)

DIFFERENTIAL GAIN AND PHASE

D I F F

E R E N T I A L P H A S E (°)

D I F F

E R E N T I A L G A I N (%)

Typical Application Circuit

MAX4090

3V/5V , 6dB Video Buffer with Sync-Tip Clamp

and 150nA Shutdown Current

_______________________________________________________________________________________7

M A X 4090

3V/5V , 6dB Video Buffer with Sync-Tip Clamp and 150nA Shutdown Current 8_______________________________________________________________________________________

MAX4090

3V/5V , 6dB Video Buffer with Sync-Tip Clamp

and 150nA Shutdown Current

_______________________________________________________________________________________9

Package Information

(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages .)

M A X 4090

3V/5V , 6dB Video Buffer with Sync-Tip Clamp and 150nA Shutdown Current Maxi m cannot assume responsi bi li ty for use of any ci rcui try other than ci rcui try enti rely embodi ed i n a Maxi m product. No ci rcui t patent li censes are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.

10____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600©2003 Maxim Integrated Products

Printed USA

is a registered trademark of Maxim Integrated Products.

Package Information (continued)

(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages .)