PDS-1206C

Printed in U.S.A. June, 1996

BUF634

FEATURES

q HIGH OUTPUT CURRENT: 250mA

q SLEW RATE: 2000V/

q PIN-SELECTED BANDWIDTH:

30MHz to 180MHz

q LOW QUIESCENT CURRENT:

1.5mA (30MHz BW)

q WIDE SUPPLY RANGE:

q INTERNAL CURRENT LIMIT

q THERMAL SHUTDOWN PROTECTION

q 8-PIN DIP, SO-8, 5-LEAD TO-220, 5-LEAD

DDPAK SURFACE-MOUNT

BW

NC

V

IN

V–

NC

V+

V

O

NC

1

2

3

4

8

7

6

5

8-Pin DIP Package

SO-8 Surface-Mount Package

G = 1

®

APPLICATIONS

q VALVE DRIVER

q SOLENOID DRIVER

q OP AMP CURRENT BOOSTER

q LINE DRIVER

q HEADPHONE DRIVER

q VIDEO DRIVER

q MOTOR DRIVER

q TEST EQUIPMENT

q ATE PIN DRIVER

DESCRIPTION

The BUF634 is a high speed unity-gain open-loop

buffer recommended for a wide range of applications.

It can be used inside the feedback loop of op amps to

increase output current, eliminate thermal feedback

and improve capacitive load drive.

For low power applications, the BUF634 operates

on 1.5mA quiescent current with 250mA output,

2000V/

µs slew rate and 30MHz bandwidth. Band-

width can be adjusted from 30MHz to 180MHz by

connecting a resistor between V– and the BW Pin.

Output circuitry is fully protected by internal current

limit and thermal shut-down making it rugged and

easy to use.

The BUF634 is available in a variety of packages to

suit mechanical and power dissipation requirements.

Types include 8-pin DIP, SO-8 surface-mount, 5-lead

TO-220, and a 5-lead DDPAK surface-mount plastic

power package.

250mA HIGH-SPEED BUFFER

BUF634

BUF634

BUF634

BUF634

G = 1

G = 1

V–

V

O

V+

V

IN

BW

123 4 5

5-Lead

TO-220

V–

V

O

V+

V

IN

BW

123 4 5

NOTE: Tabs are connected

to V– supply.

5-Lead DDPAK

Surface Mount

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/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132

SBOS030