©1997 Burr-Brown Corporation

PDS-1391B

Printed in U.S.A. July, 1997

DESCRIPTION

The INA137 and INA2137 are differential line receivers

consisting of high performance op amps with on-chip

precision resistors. They are fully specified for high

performance audio applications and have excellent ac

specifications, including low distortion (0.0005% at

1kHz) and high slew rate (14V/

µs), assuring good

dynamic response. In addition, wide output voltage

swing and high output drive capability allow use in a

wide variety of demanding applications. The dual ver-

sion features completely independent circuitry for low-

est crosstalk and freedom from interaction, even when

overdriven or overloaded.

The INA137 and INA2137 on-chip resistors are laser

trimmed

for

accurate

gain

and

optimum

common-mode rejection. Furthermore, excellent TCR

tracking of the resistors maintains gain accuracy and

common-mode rejection over temperature. Operation

is guaranteed from

±4V to ±18V (8V to 36V total

supply).

The INA137 is available in 8-pin DIP and SO-8

surface-mount packages. The INA2137 comes in

14-pin DIP and SO-14 surface-mount packages. Both

are specified for operation over the extended industrial

temperature range, –40

°C to +85°C.

®

FEATURES

q SINGLE AND DUAL VERSIONS

q LOW DISTORTION: 0.0005% at f = 1kHz

q HIGH SLEW RATE: 14V/

µs

q FAST SETTLING TIME: 3

µs to 0.01%

q WIDE SUPPLY RANGE:

±4V to ±18V

q LOW QUIESCENT CURRENT: 2.9mA max

q HIGH CMRR: 90dB

q FIXED GAIN =

±6dB

q PACKAGES—SINGLE: 8-PIN DIP, SO-8

DUAL: 14-PIN DIP, SO-14

APPLICATIONS

q AUDIO DIFFERENTIAL LINE RECEIVER

q G = 1/2 OR G = 2 AMPLIFIER

q INSTRUMENTATION BUILDING BLOCK

q CURRENT SHUNT MONITOR

q VOLTAGE-CONTROLLED CURRENT

SOURCE

q GROUND LOOP ELIMINATOR

INA137

INA2137

AUDIO DIFFERENTIAL LINE RECEIVERS

±6dB (G = 1/2 or 2)

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

INA137

INA137

INA2137

INA2137

Sense A

INA2137

Out A

V+

Ref A

–In A

+In A

12

13

14

2

11

V–

4

3

12k

Ω

6k

Ω

12k

Ω

6k

Ω

12k

Ω

6k

Ω

12k

Ω

6k

Ω

B

A

Sense B

Out B

Ref B

–In B

+In B

10

9

8

6

5

Sense

INA137

Output

V+

Ref

–In

+In

5

6

1

2

7

V–

4

3

12k

Ω

6k

Ω

6k

Ω

12k

Ω

SBOS072