Dual, Wideband, Fixed Gain

BUFFER AMPLIFIER With Disable

OPA2682

®

FEATURES

q INTERNALLY FIXED GAIN: +2 or

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

q LOW SUPPLY CURRENT: 6mA/ch

q LOW DISABLED CURRENT: 320

q HIGH OUTPUT CURRENT: 150mA

q OUTPUT VOLTAGE SWING:

q

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 OPA2682 provides an easy to use, broadband fixed

gain, dual buffer amplifier. Depending on the external con-

nections, the internal resistor network may be used to pro-

vide 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 OPA2682 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 minimal headroom and crossover distortion. This

gives exceptional single supply operation. Using a single

+5V supply, the OPA2682 can deliver a 1V to 4V output

swing with over 100mA drive current and 200MHz band-

width. This combination of features makes the OPA2682 an

ideal RGB line driver or single-supply ADC input driver.

OPA2682 RELATED PRODUCTS

SINGLES

DUALS

TRIPLES

Voltage Feedback

OPA680

OPA2680

OPA3680

Current Feedback

OPA681

OPA2681

OPA3681

Fixed Gain

OPA682

OPA2682

OPA3682

The OPA2682’s low 6mA/ch supply current is precisely

trimmed at 25

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

ture, 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

OPA2682 supply current drops to less than 320

µA/ch while the

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

used for either power savings or for video MUX applications.

PDS-1477B

Printed in U.S.A. October, 1999

High-Speed Instrumentation

Differential Amplifier

OPA2682

OPA2682

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

For most current data sheet and other

product information, visit www.burr-brown.com

1/2

OPA2682

1/2

OPA2682

OPA680

400

Ω

400

Ω

400

Ω

499

Ω

499

Ω

249

Ω

249

Ω

400

Ω

V

2

V

V

1

SBOS102