© 1994 Burr-Brown Corporation

PDS-1267B

Printed in U.S.A. July, 1995

FEATURES

q LOW POWER: 50mW/channel

q UNITY GAIN STABLE BANDWIDTH:

360MHz

q FAST SETTLING TIME: 20ns to 0.01%

q LOW INPUT BIAS CURRENT: 5

q DIFFERENTIAL GAIN/PHASE ERROR:

0.01%/0.025

°

q 14-PIN DIP and SO-14 SURFACE MOUNT

PACKAGES AVAILABLE

DESCRIPTION

The OPA4650 is a quad, low power, wideband voltage

feedback operational amplifier. It features a high band-

width of 360MHz as well as a 12-bit settling time of

only 20ns. The low input bias current allows its use in

high speed integrator applications, while the wide

bandwidth and true differential input stage make it

suitable for use in a variety of active filter applica-

tions. Its low distortion gives exceptional performance

for telecommunications, medical imaging and video

applications.

The OPA4650 is internally compensated for unity-

gain stability. This amplifier has a fully symmetrical

differential input due to its “classical” operational

amplifier circuit architecture. Its unusual combination

of speed, accuracy and low power make it an outstand-

ing choice for many portable, multi-channel and other

high speed applications, where power is at a premium.

The OPA4650 is also available in single (OPA650)

and dual (OPA2650) configurations.

Wideband, Low Power, Quad Voltage Feedback

OPERATIONAL AMPLIFIER

®

OPA4650

Current

Mirror

Output

Stage

C

C

Inverting

Input

Non-Inverting

Input

+V

S

Output

–V

S

Simplified Schematic

1 of 4 Channels

APPLICATIONS

q HIGH RESOLUTION VIDEO

q MONITOR PREAMPLIFIER

q CCD IMAGING AMPLIFIER

q ULTRASOUND SIGNAL PROCESSING

q ADC/DAC BUFFER AMPLIFIER

q ACTIVE FILTERS

q HIGH SPEED INTEGRATORS

q DIFFERENTIAL AMPLIFIER

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

OPA4650

OPA4650

DEMO BOARD

AVAILABLE

SBOS044