®

OPA640

1

FEATURES

q UNITY-GAIN BANDWIDTH: 1.3GHz

q UNITY-GAIN STABLE

q LOW NOISE: 2.9nV/

√Hz

q LOW HARMONICS: –75dBc at 10MHz

q HIGH COMMON MODE REJECTION: 85dB

q HIGH SLEW RATE: 350V/

µs

OPA640

Wideband Voltage Feedback

OPERATIONAL AMPLIFIER

DESCRIPTION

The OPA640 is an extremely wideband operational

amplifier featuring low noise, high common-mode

rejection and high spurious free dynamic range.

The OPA640 is internally compensated for unity-gain

stability. This amplifier has a fully symmetrical differ-

ential input due to its “classical” operational amplifier

circuit architecture. This allows the OPA640 to be used

in all op amp applications requiring high speed and

precision.

Low noise, wide bandwidth, and high linearity make

this amplifier suitable for a variety of RF and video

applications.

®

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

OPA640

OPA640

APPLICATIONS

q COMMUNICATIONS

q MEDICAL IMAGING

q TEST EQUIPMENT

q CCD IMAGING

q ADC/DAC GAIN AMPLIFIER

q HIGH-RESOLUTION VIDEO

q LOW NOISE PREAMPLIFIER

q DIFFERENTIAL AMPLIFIER

q ACTIVE FILTERS

Current

Mirror

Output

Stage

C

C

3

2

Non-Inverting

Input

Inverting

Input

7, 8

+V

S

4, 5

–V

S

6

V

OUT

PDS-1179D

Printed in U.S.A. March, 1998

SBOS023