OPA3682 Burr-Brown, OPA3682 Datasheet

OPA3682

Manufacturer Part Number

OPA3682

Description

Triple / Wideband / Fixed Gain BUFFER AMPLIFIER With Disable

Manufacturer

Burr-Brown

Datasheet

1.OPA3682.pdf (19 pages)

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FEATURES

DESCRIPTION

The OPA3682 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

6mA/ch supply current, the OPA3682 offers a slew rate

and output power normally associated with a much

higher supply current. A new output stage architecture

delivers high output current with minimal headroom and

crossover distortion. This gives exceptional single-sup-

ply operation. Using a single +5V supply, the OPA3682

can deliver a 1V to 4V output swing with over 100mA

drive current and 200MHz bandwidth. This combination

of features makes the OPA3682 an ideal RGB line driver

or single-supply, triple ADC input driver.

The OPA3682’s low 6mA/ch supply current is precisely

trimmed at 25 C. This trim, along with low drift over

temperature, guarantees lower maximum supply current

than competing products that report only a room tempera-

ture nominal supply current. System power may 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 OPA3682 supply current drops

to less than 320 A/ch while the output goes into a high

impedance state. This feature may be used for either power

savings or for video MUX applications.

1998 Burr-Brown Corporation

information, visit www.burr-brown.com

INTERNALLY FIXED GAIN: +2 or 1

HIGH BANDWIDTH (G = +2): 240MHz

LOW SUPPLY CURRENT: 6mA/ch

LOW DISABLED CURRENT: 320 A/ch

HIGH OUTPUT CURRENT: 150mA

OUTPUT VOLTAGE SWING: 4.0V

IMPROVED HIGH FREQUENCY PINOUT

5V OR SINGLE +5V OPERATION

International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111

Twx: 910-952-1111 • Internet: http://www.burr-brown.com/ • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132

BUFFER AMPLIFIER With Disable

Triple, Wideband, Fixed Gain

PDS-1496B

APPLICATIONS

OPA3682 RELATED PRODUCTS

75.0

Voltage Feedback

Current Feedback

Fixed Gain

RGB VIDEO LINE DRIVER

VIDEO MULTIPLEXERS

MULTIPLE LINE VIDEO D/As

PORTABLE INSTRUMENTS

ADC BUFFERS

ACTIVE FILTERS

WIDEBAND DIFFERENTIAL RECEIVERS

400

Video RGB Amplifier

SINGLES

OPA680

OPA681

OPA682

OPA3682

1/3

400

1/3

400

1/3

400

OPA2680

OPA2681

OPA2682

OPA3682

DUALS

Printed in U.S.A. June, 1999

75.0

75 Cable

RG-59

75 Cable

OPA3680

OPA3681

OPA3682

TRIPLES

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