®

INA155

PDS-1529A

Printed in U.S.A. October, 1999

FEATURES

q RAIL-TO-RAIL OUTPUT SWING: Within 10mV

q LOW OFFSET VOLTAGE:

q LOW OFFSET DRIFT:

q INTERNAL FIXED GAIN = 10V/V OR 50V/V

q SPECIFIED TEMPERATURE RANGE:

–55

q LOW INPUT BIAS CURRENT: 0.2pA

q WIDE BANDWIDTH: 550kHz in G = 10

q HIGH SLEW RATE: 6.5V/

q LOW COST

q SO-8 AND TINY MSOP-8 PACKAGES

Single-Supply, Rail-to-Rail Output, CMOS

INSTRUMENTATION AMPLIFIER

DESCRIPTION

The INA155 is a low-cost CMOS instrumentation

amplifier with rail-to-rail output swing optimized for

low voltage, single-supply operation.

Wide bandwidth (550kHz in G = 10) and high slew

rate (6.5V/

µs) make the INA155 suitable for driving

sampling A/D converters as well as general purpose

and audio applications. Fast settling time allows use

with higher speed sensors and transducers and rapid

scanning data acquisition systems.

APPLICATIONS

q INDUSTRIAL SENSOR AMPLIFIERS

Bridge, RTD, Thermocouple, Flow, Position

q MEDICAL EQUIPMENT

ECG, EEG, EMG Amplifiers

q DRIVING A/D CONVERTERS

q PCMCIA CARDS

q AUDIO PROCESSING

q COMMUNICATIONS

q TEST EQUIPMENT

q LOW COST AUTOMOTIVE INSTRUMENTATION

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/ • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132

INA155

INA155

For most current data sheet and other product

information, visit www.burr-brown.com

Gain can be set to 10V/V or 50V/V by pin strapping.

Gains between these two values can be obtained with

the addition of a single resistor. The INA155 is fully

specified over the supply range of +2.7 to +5.5V.

The INA155 is available in MSOP-8 and SO-8 sur-

face-mount packages. Both are specified for operation

over the temperature range –55

°C to 125°C.

22.2k

Ω

200k

Ω

V

IN

–

V

IN

+

Ref

R

G

INA155

V

O

22.2k

Ω

5k

Ω

5k

Ω

200k

Ω

R

G

V+

V–

1

5

2

3

8

7

4

6

A1

A2

G = 10 pins open

G = 50 pins connected

V

+–