nternational 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

Wideband, Fixed Gain

BUFFER AMPLIFIER With Disable

OPA682

®

FEATURES

q INTERNALLY FIXED GAIN: +2 OR

q HIGH BANDWIDTH (G = +2): 240MHz

q LOW SUPPLY CURRENT: 6mA

q LOW DISABLED CURRENT: 320

q HIGH OUTPUT CURRENT: 150mA

q OUTPUT VOLTAGE SWING:

q

q SOT23-6 AVAILABLE

APPLICATIONS

q BROADBAND VIDEO LINE DRIVERS

q VIDEO MULTIPLEXERS

q MULTIPLE LINE VIDEO DA

q PORTABLE INSTRUMENTS

q ADC BUFFERS

q ACTIVE FILTERS

TM

DESCRIPTION

The OPA682 provides an easy to use, broadband fixed gain

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 supply current, the

OPA682 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 a mini-

mal headroom and crossover distortion. This gives excep-

tional single supply operation. Using a single +5V supply,

the OPA682 can deliver a 1V to 4V output swing with over

100mA drive current and 200MHz bandwidth. This combi-

nation of features makes the OPA682 an ideal RGB line

driver or single supply ADC input driver.

OPA682 RELATED PRODUCTS

SINGLES

DUALS

TRIPLES

Voltage Feedback

OPA680

OPA2680

OPA3680

Current Feedback

OPA681

OPA2681

OPA3681

Fixed Gain

OPA682

OPA2682

OPA3682

The OPA682’s low 6mA 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 temperature 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

OPA682 supply current drops to less than 320

µA while the

output goes into a high impedance state. This feature may be

used for either power savings or for video MUX applications.

OPA682

OPA682

OPA682

PDS-1428C

Printed in U.S.A. September, 1999

Video

Out

75

Ω

75

Ω

RG-59

75

Ω

75

Ω

RG-59

75

Ω

75

Ω

RG-59

75

Ω

75

Ω

RG-59

75

Ω

1

2

3

4

8

7

6

5

DIS

OPA682

8-Pin DIP, SO-8

G = +2

240MHz, 4-Output Component Video D/A

+5V

–5V

Video

In