FEATURES

q SUPERIOR SOUND QUALITY

q ULTRA LOW DISTORTION: 0.00008%

q LOW NOISE: 8nV/

√Hz

q TRUE FET-INPUT: I

q HIGH SPEED:

SLEW RATE: 20V/

µs

BANDWIDTH: 8MHz

q HIGH OPEN-LOOP GAIN: 120dB (600

Ω)

q WIDE SUPPLY RANGE:

q SINGLE, DUAL, AND QUAD VERSIONS

High Performance

AUDIO OPERATIONAL AMPLIFIERS

TM

DESCRIPTION

The OPA134 series are ultra-low distortion, low noise

operational amplifiers fully specified for audio appli-

cations. A true FET input stage was incorporated to

provide superior sound quality and speed for excep-

tional audio performance. This in combination with

high output drive capability and excellent dc perfor-

mance allows use in a wide variety of demanding

applications. In addition, the OPA134’s wide output

swing, to within 1V of the rails, allows increased

headroom making it ideal for use in any audio circuit.

OPA134 op amps are easy to use and free from phase

inversion and overload problems often found in com-

mon FET-input op amps. They can be operated from

±2.5V to ±18V power supplies. Input cascode cir-

cuitry provides excellent common-mode rejection and

maintains low input bias current over its wide input

voltage range, minimizing distortion. OPA134 series

op amps are unity-gain stable and provide excellent

dynamic behavior over a wide range of load condi-

tions, including high load capacitance. The dual and

quad versions feature completely independent cir-

cuitry for lowest crosstalk and freedom from interac-

tion, even when overdriven or overloaded.

Single and dual versions are available in 8-pin DIP

and SO-8 surface-mount packages in standard con-

figurations. The quad is available in 14-pin DIP and

SO-14 surface mount packages. All are specified for

–40

°C to +85°C operation. A SPICE macromodel is

available for design analysis.

APPLICATIONS

q PROFESSIONAL AUDIO AND MUSIC

q LINE DRIVERS

q LINE RECEIVERS

q MULTIMEDIA AUDIO

q ACTIVE FILTERS

q PREAMPLIFIERS

q INTEGRATORS

q CROSSOVER NETWORKS

© 1996 Burr-Brown Corporation

PDS-1339C

Printed in U.S.A. December, 1997

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

1

2

3

4

8

7

6

5

V+

Out B

–In B

+In B

Out A

–In A

+In A

V–

OPA2134

8-Pin DIP, SO-8

A

B

1

2

3

4

5

6

7

14

13

12

11

10

9

8

Out D

–In D

+In D

V–

+In C

–In C

Out C

Out A

–In A

+In A

V+

+In B

–In B

Out B

OPA4134

14-Pin DIP

SO-14

AD

BC

1

2

3

4

8

7

6

5

Offset Trim

V+

Output

NC

Offset Trim

–In

+In

V–

OPA134

8-Pin DIP, SO-8

®

OPA134

OPA2134

OPA4134

OPA134

OPA2134

OPA4134

OPA4134

OPA134

OPA2134

SBOS058