Datasheet

©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
● SINGLE AND DUAL VERSIONS
● LOW DISTORTION: 0.0005% at f = 1kHz
● HIGH SLEW RATE: 14V/
µs
● FAST SETTLING TIME: 3
µs to 0.01%
● WIDE SUPPLY RANGE:
±4V to ±18V
● LOW QUIESCENT CURRENT: 2.9mA max
● HIGH CMRR: 90dB
● FIXED GAIN =
±6dB
● PACKAGES—SINGLE: 8-PIN DIP, SO-8
DUAL: 14-PIN DIP, SO-14
APPLICATIONS
● AUDIO DIFFERENTIAL LINE RECEIVER
● G = 1/2 OR G = 2 AMPLIFIER
● INSTRUMENTATION BUILDING BLOCK
● CURRENT SHUNT MONITOR
● VOLTAGE-CONTROLLED CURRENT
SOURCE
● 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: [phone] • Twx: 910-952-1111
Internet: http://www.burr-brown.com/ • FAXLine: [phone] (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: [phone] • Immediate Product Info: [phone]
INA137
INA137
INA2137
INA2137
Sense A
INA2137
Out A
V+
Ref A
–In A
+In A
12
13
14
2
11
V–
4
3
12kΩ 6kΩ
12kΩ 6kΩ
12kΩ 6kΩ
12kΩ 6kΩ
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
12kΩ 6kΩ
6kΩ12kΩ
SBOS072