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Triple, Wideband, Fixed Gain

Video BUFFER AMPLIFIER With Disable

FEATURES

q FLEXIBLE SUPPLY RANGE:

+5V to +12V Single Supply

q INTERNALLY FIXED GAIN: +2 or

q HIGH BANDWIDTH (G = +2): 225MHz

q LOW SUPPLY CURRENT: 5.1mA/ch

q LOW DISABLED CURRENT: 150

q HIGH OUTPUT CURRENT: 190mA

q OUTPUT VOLTAGE SWING:

q IMPROVED HIGH-FREQUENCY PINOUT

APPLICATIONS

q RGB VIDEO LINE DRIVERS

q MULTIPLE LINE VIDEO DAs

q PORTABLE INSTRUMENTS

q ADC BUFFERS

q ACTIVE FILTERS

q WIDEBAND DIFFERENTIAL RECEIVERS

q IMPROVED UPGRADE TO OPA3682

DESCRIPTION

The OPA3692 provides an easy-to-use, broadband fixed

gain, triple buffer amplifier. Depending on the external

connections, the internal resistor network may be used to

provide either a fixed gain of +2 video buffer, or a gain of +1

or –1 voltage buffer. Operating on a very low 5.1mA/ch

supply current, the OPA3692 offers a slew rate and output

power normally associated with a much higher supply cur-

rent. A new output stage architecture delivers high output

current with minimal headroom and crossover distortion.

This gives exceptional single-supply operation. Using a

single +5V supply, the OPA3692 can deliver a 1V to 4V

output swing with over 120mA drive current and > 200MHz

bandwidth. This combination of features makes the OPA3692

an ideal RGB line driver or single-supply, triple Analog-to-

Digital Converter (ADC) input driver.

The low 5.1mA/ch supply current of the OPA3692 is precisely

trimmed at +25

°C. This trim, along with low drift over tempera-

ture, ensures lower maximum supply current than competing

products that report only a room temperature nominal supply

current. System power can be further reduced by using the

optional disable control pin. Leaving this disable pin open, or

holding it HIGH, gives normal operation. If pulled LOW, the

OPA3692 supply current drops to less than 150

µA/ch while

the output goes into a high-impedance state. This feature

may be used for power savings.

OPA3692

SBOS228E – FEBRUARY 2002 – REVISED DECEMBER 2008

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Copyright © 2002-2008, Texas Instruments Incorporated

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

OPA3692 RELATED PRODUCTS

SINGLES

DUALS

TRIPLES

Voltage-Feedback

OPA690

OPA2690

OPA3690

Current-Feedback

OPA691

OPA2691

OPA3691

Fixed Gain

OPA692

—

OPA3682

OPA3692

1/3

OPA3692

402

Ω

402

Ω

75.0

Ω

75.0

Ω

RG-59

V

R

1/3

OPA3692

402

Ω

402

Ω

75.0

Ω

75.0

Ω

RG-59

V

G

1/3

OPA3692

402

Ω

402

Ω

75.0

Ω

75

Ω Cable

75

Ω Cable

75

Ω Cable

75.0

Ω

RG-59

V

B

RGB Line Driver

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

All trademarks are the property of their respective owners.