Datasheet
®
INA155
©1999 Burr-Brown Corporation PDS-1529B Printed in U.S.A. February, 2000
FEATURES
● RAIL-TO-RAIL OUTPUT SWING: Within 10mV
● LOW OFFSET VOLTAGE: ±200µV
● LOW OFFSET DRIFT: ±5µV/°C
● INTERNAL FIXED GAIN = 10V/V OR 50V/V
● SPECIFIED TEMPERATURE RANGE:
–55°C to +125°C
● LOW INPUT BIAS CURRENT: 0.2pA
● WIDE BANDWIDTH: 550kHz in G = 10
● HIGH SLEW RATE: 6.5V/µs
● LOW COST
● 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
● INDUSTRIAL SENSOR AMPLIFIERS
Bridge, RTD, Thermocouple, Flow, Position
● MEDICAL EQUIPMENT
ECG, EEG, EMG Amplifiers
● DRIVING A/D CONVERTERS
● PCMCIA CARDS
● AUDIO PROCESSING
● COMMUNICATIONS
● TEST EQUIPMENT
●
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.
22.2kΩ
200kΩ
V
IN
–
V
IN
+
Ref
R
G
INA155
V
O
22.2kΩ
5kΩ5kΩ
200kΩ
R
G
V+
V–
1
5
2
3
8
7
4
6
A1
A2
G = 10 pins open
G = 50 pins connected
V
O
= (V
IN
– V
IN
) • G + V
REF
+–
SBOS114