®
INA155
INA155
INA155
For most current data sheet and other product
information, visit www.burr-brown.com
Single-Supply, Rail-to-Rail Output, CMOS
INSTRUMENTATION AMPLIFIER
APPLICATIONS
FEATURES
● INDUSTRIAL SENSOR AMPLIFIERS
● RAIL-TO-RAIL OUTPUT SWING: Within 10mV
Bridge, RTD, Thermocouple, Flow, Position
● LOW OFFSET VOLTAGE: ±200µV
● MEDICAL EQUIPMENT
ECG, EEG, EMG Amplifiers
● DRIVING A/D CONVERTERS
● PCMCIA CARDS
● LOW OFFSET DRIFT: ±5µV/°C
● INTERNAL FIXED GAIN = 10V/V OR 50V/V
● SPECIFIED TEMPERATURE RANGE:
–55°C to +125°C
● AUDIO PROCESSING
● COMMUNICATIONS
● TEST EQUIPMENT
● LOW INPUT BIAS CURRENT: 0.2pA
● WIDE BANDWIDTH: 550kHz in G = 10
● HIGH SLEW RATE: 6.5V/µs
● LOW COST
●
LOW COST AUTOMOTIVE INSTRUMENTATION
● SO-8 AND TINY MSOP-8 PACKAGES
DESCRIPTION
The INA155 is a low-cost CMOS instrumentation
amplifier with rail-to-rail output swing optimized for
low voltage, single-supply operation.
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.
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.
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.
G = 10 pins open
G = 50 pins connected
V+
RG
RG
1
8
7
INA155
5kΩ
5kΩ
200kΩ
22.2kΩ
22.2kΩ
200kΩ
5
Ref
VO = (VI+N – VIN–) • G + VREF
A1
2
3
–
VIN
6
A2
VO
+
VIN
4
V–
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
•
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FAX: (520) 889-1510 Immediate Product Info: (800) 548-6132
•
©1999 Burr-Brown Corporation
PDS-1529B
Printed in U.S.A. February, 2000
SBOS114