FEATURES

q LOW DISTORTION: 0.0003% at 1kHz

q LOW NOISE: 10nV/

√Hz

q HIGH SLEW RATE: 25V/

µs

q WIDE GAIN-BANDWIDTH: 20MHz

q UNITY-GAIN STABLE

q WIDE SUPPLY RANGE: V

q DRIVES 600

Ω LOAD

q DUAL VERSION AVAILABLE (OPA2604)

FET-Input, Low Distortion

OPERATIONAL AMPLIFIER

APPLICATIONS

q PROFESSIONAL AUDIO EQUIPMENT

q PCM DAC I/V CONVERTERS

q SPECTRAL ANALYSIS EQUIPMENT

q ACTIVE FILTERS

q TRANSDUCER AMPLIFIERS

q DATA ACQUISITION

OPA604

DESCRIPTION

The OPA604 is a FET-input operational amplifier designed

for enhanced AC performance. Very low distortion, low noise

and wide bandwidth provide superior performance in high

quality audio and other applications requiring excellent dy-

namic performance.

New circuit techniques and special laser trimming of dynamic

circuit performance yield very low harmonic distortion. The

result is an op amp with exceptional sound quality. The low-

noise FET input of the OPA604 provides wide dynamic

range, even with high source impedance. Offset voltage is

laser-trimmed to minimize the need for interstage coupling

capacitors.

The OPA604 is available in 8-pin plastic mini-DIP and SO-8

surface-mount packages, specified for the –25

°C to +85°C

temperature range.

Distortion

Rejection

(3)

(+)

(2)

(–)

(7)

V+

(6)

(4)

V–

Output

NOTE: (1) Patents Granted: #5053718, 5019789

(5)

(1)

OPA6

04

OPA6

04

SBOS019A – JANUARY 1992 – SEPTEMBER 2003

www.ti.com

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

Copyright © 1992-2003, Texas Instruments Incorporated

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.