TEXAS INSTRUMENTS INA137 Technical data

®

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

INA137

INA2137

INA137

INA2137

INA137

INA2137

AUDIO DIFFERENTIAL LINE RECEIVERS

±6dB (G = 1/2 or 2)

FEATURES

● SINGLE AND DUAL VERSIONS

● LOW DISTORTION: 0.0005% at f = 1kHz

● HIGH SLEW RATE: 14V/

● FAST SETTLING TIME: 3

● WIDE SUPPLY RANGE:

● 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

µs

µs to 0.01%

±4V to ±18V

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

V+

7

–In

2

6kΩ12kΩ

5

Sense

DESCRIPTION

6

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

+In

12kΩ 6kΩ

3

INA137

4

V–

swing and high output drive capability allow use in a
wide variety of demanding applications. The dual ver­sion features completely independent circuitry for low­est 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.

Output

1

Ref

SBOS072

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]

©1997 Burr-Brown Corporation PDS-1391B Printed in U.S.A. July, 1997

SPECIFICATIONS: VS = ±18V

At TA = +25°C, VS = ±18V, RL = 2kΩ, G = 1/2, and Ref Pin connected to Ground, unless otherwise noted.

INA137PA, UA

INA2137PA, UA

PARAMETER CONDITIONS MIN TYP MAX UNITS
AUDIO PERFORMANCE

Total Harmonic Distortion + Noise, f = 1kHz V
Noise Floor, RTO
Headroom, RTO

(1)

(1)

FREQUENCY RESPONSE

Small-Signal Bandwidth 4.0 MHz
Slew Rate 14 V/µs
Settling Time: 0.1% 10V Step, C

0.01% 10V Step, C
Overload Recovery Time 50% Overdrive 3 µs
Channel Separation (dual), f = 1kHz 123 dB

OUTPUT NOISE VOLTAGE

(2)

f = 20Hz to 20kHz 3.5 µVrms
f = 1kHz 26 nV/√HZ

OFFSET VOLTAGE

(3)

Input Offset Voltage V

vs Temperature Specified Temperature Range ±2 µV/°C
vs Power Supply V

INPUT

Common-Mode Voltage Range: Positive

Negative
Differential Voltage Range See Typical Curve
Common-Mode Rejection V
Impedance

(4)

Differential 24 kΩ
Common-Mode 18 kΩ

GAIN

Initial 0.5 V/V
Error V

vs Temperature ±1 ±10 ppm/°C
Nonlinearity V

OUTPUT

Voltage Output, Positive (V+)–2 (V+)–1.8 V

Negative (V–)+2 (V–)+1.6 V
Current Limit, Continuous to Common ±60 mA
Capacitive Load (Stable Operation) 500 pF

POWER SUPPLY

Rated Voltage ±18 V
Voltage Range ±4 ±18 V
Quiescent Current (per Amplifier) I

TEMPERATURE RANGE

Specification Range –40 85 °C
Operation Range –55 125 °C
Storage Range –55 125 °C
Thermal Resistance,

8-Pin DIP 100 °C/W
SO-8 Surface-Mount 150 °C/W
14-Pin DIP 80 °C/W
SO-14 Surface-Mount 100 °C/W

θ

JA

RTO = Referred to Output.
NOTES: (1) dBu = 20log (Vrms/0.7746). (2) Includes effects of amplifier’s input current noise and thermal noise contribution of resistor network.

(3) Includes effects of amplifier’s input bias and offset currents. (4) Internal resistors are ratio matched but have ±25% absolute value.

= 10Vrms 0.0005 %

IN

20kHz BW –106 dBu

THD+N < 1% +23 dBu

= 100pF 2 µs

L

= 100pF 3 µs

L

RTO

= 0V ±100 ± 1000 µV

CM

= ±4V to ±18V ±5 ±60 µV/V

S

VO = 0V 3(V+)–7.5 3(V+)–6 V
VO = 0V 3(V–)+7.5 3(V–)+3 V

= ±46.5V, RS = 0Ω 74 90 dB

CM

= –10V to 10V ±0.01 ±0.1 %

O

= –10V to 10V 0.0001 %

O

= 0 ±2.4 ±2.9 mA

O

The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes
no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change
without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant
any BURR-BROWN product for use in life support devices and/or systems.

®

INA137, INA2137

2

PIN CONFIGURATIONS

Top View 8-Pin DIP/SO-8 Top View 14-Pin DIP/SO-14

1

Ref

2

–In

3

+In

4

V–

NC = No Connection

ABSOLUTE MAXIMUM RATINGS

Supply Voltage, V+ to V– .................................................................... 40V

Input Voltage Range .......................................................................... ±80V

Output Short-Circuit (to ground)

Operating Temperature ................................................. –55°C to +125°C

Storage Temperature ..................................................... –55°C to +125°C

Junction Temperature....................................................................+150°C

Lead Temperature (soldering, 10s)...............................................+300°C

NOTE: (1) Stresses above these ratings may cause permanent damage.
(2) One channel per package.

(2)

............................................................

(1)

NC

8

V+

7

Output

6

Sense

5

Continuous

PACKAGE/ORDERING INFORMATION

PACKAGE SPECIFICATION
DRAWING TEMPERATURE

PRODUCT PACKAGE NUMBER
Single

INA137PA 8-Pin DIP 006 –40°C to +85°C
INA137UA SO-8 Surface-Mount 182 –40°C to +85°C

Dual

INA2137PA 14-Pin DIP 010 –40°C to +85°C
INA2137UA SO-14 Surface-Mount 235 –40°C to +85°C

NOTE: (1) For detailed drawing and dimension table, please see end of data
sheet, or Appendix C of Burr-Brown IC Data Book.

(1)

RANGE

1

NC

2

–In A

3

+In A

4

V–

5

+In B

6

–In B

7

NC

NC = No Connection

A

B

14

13

12

11

10

9

8

Ref A

Out A

Sense A

V+

Sense B

Out B

Ref B

ELECTROSTATIC
DISCHARGE SENSITIVITY

This integrated circuit can be damaged by ESD. Burr-Brown
recommends that all integrated circuits be handled with ap­propriate precautions. Failure to observe proper handling and
installation procedures can cause damage.

ESD damage can range from subtle performance degradation
to complete device failure. Precision integrated circuits may
be more susceptible to damage because very small parametric
changes could cause the device not to meet its published
specifications.

®

3

INA137, INA2137

TYPICAL PERFORMANCE CURVES

At TA = +25°C, VS = ±18V, and G = 1/2, unless otherwise noted.

TOTAL HARMONIC DISTORTION+NOISE

0.1

0.010

0.001

THD+Noise (%)

0.0001
20 100 1k 10k 20k

HEADROOM - TOTAL HARMONIC DISTORTION+NOISE

1

f = 1kHz

0.1
RTO

0.010

THD+Noise (%)

0.001

0.0001
0 5 10 15 20 25 30

vs FREQUENCY

Frequency (Hz)

vs OUTPUT AMPLITUDE

RL = 600Ω

Output Amplitude (dBu)

VO = 5Vrms

RL = 100kΩ

RL = 2kΩ

RL = 600Ω

RL = 2kΩ,

100kΩ

DIM INTERMODULATION DISTORTION

5

BW = 100kHz

1

0.1

DIM (%)

0.010

0.001
–10 –5 0 5 10 15 20 25

0.001

0.0001

0.00001

Amplitude (% of Fundamental)

0.000001
20 100 1k 10k 20k

RTO

HARMONIC DISTORTION PRODUCTS

VO = 1Vrms

vs OUTPUT AMPLITUDE

RL = 2kΩ, 600Ω

Output Amplitude (dBu)

vs FREQUENCY

RL = 2kΩ

RL = 600Ω

2nd Harmonic

3rd Harmonic

RL = 2kΩ

RL = 600Ω

( Noise Limited)

Frequency (Hz)

OUTPUT VOLTAGE NOISE SPECTRAL DENSITY

10k

1k

100

Voltage Noise (nV/√Hz)

10

1 10 100 1k 10k 100k 1M

®

vs FREQUENCY

Frequency (Hz)

INA137, INA2137

100

Noise Voltage (µVrms)

4

OUTPUT NOISE VOLTAGE

vs NOISE BANDWIDTH

10

1

0.1
1 10 100 1k 10k 100k

Frequency (Hz)

TYPICAL PERFORMANCE CURVES (CONT)

COMMON-MODE REJECTION vs FREQUENCY

Frequency (Hz)

Common-Mode Rejection (dB)

1k 10k 100k 1M

100

80

60

40

RTO

At TA = +25°C, VS = ±18V, and G = 1/2, unless otherwise noted.

10

0

–10

Voltage Gain (dB)

–20

–30

1k 10k 100k 1M 10M

120

100

POWER SUPPLY REJECTION vs FREQUENCY

80

60

GAIN vs FREQUENCY

Frequency (Hz)

–PSR

RTO

130

120

110

CHANNEL SEPARATION vs FREQUENCY

RL = 100kΩ

RL = 2kΩ

40

20

Power Supply Rejection (dB)

0

100 1k 10k 100k 1M

40

30

20

10

Output Voltage (Vp-p)

0

100 1k 10k 100k 1M 10M

+PSR

Frequency (Hz)

MAXIMUM OUTPUT VOLTAGE vs FREQUENCY

Frequency (Hz)

100

Channel Separation (dB)

Dual Devices

90

20 100 1k 10k 20k

Frequency (Hz)

INPUT COMMON-MODE VOLTAGE

80
60
40
20

0
–20
–40

Common-Mode Voltage (V)

V

–60
–80

= 0V

REF

= 2kΩ

R

L

–20 –15 –10 –5 0 5 10 15 20

vs OUTPUT VOLTAGE

Output Voltage (V)

G = 1/2

= ±18V

V

S

®

5

INA137, INA2137