INA155UG4 Datasheet, PDF (1/16 Pages) Texas Instruments – Single-Supply, Rail-to-Rail Output, CMOS INSTRUMENTATION AMPLIFIER

SBOS114
®
INA155
INA155
INA155
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Single-Supply, Rail-to-Rail Output, CMOS
INSTRUMENTATION AMPLIFIER
FEATURES
q RAIL-TO-RAIL OUTPUT SWING: Within 10mV
q LOW OFFSET VOLTAGE: ±200µV
q LOW OFFSET DRIFT: ±5µV/°C
q INTERNAL FIXED GAIN = 10V/V OR 50V/V
q SPECIFIED TEMPERATURE RANGE:
–55°C to +125°C
q LOW INPUT BIAS CURRENT: 0.2pA
q WIDE BANDWIDTH: 550kHz in G = 10
q HIGH SLEW RATE: 6.5V/µs
q LOW COST
q SO-8 AND TINY MSOP-8 PACKAGES
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
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.
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.
G = 10 pins open
R_G
G = 50 pins connected
1
5 ^200kΩ
Ref
5kΩ
22.2kΩ
22.2kΩ
V_I^–_N ²
A1
V_I⁺_N ³
R_G
V+
8
7
INA155
5kΩ
200kΩ
V_O = (V_I+N – V_IN– ) • G + V_REF
6
A2
V_O
4
V–
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©1999 Burr-Brown Corporation
PDS-1529B
Printed in U.S.A. February, 2000