Burr-Brown, Texas Instruments, INA103 pdf datasheet download

Low Noise, Low Distortion
INSTRUMENTATION AMPLIFIER

FEATURES
l LOW NOISE: 1nV/ÖHz
l LOW THD+N: 0.0009% at 1kHz, G = 100
l HIGH GBW: 100MHz at G = 1000
l WIDE SUPPLY RANGE: ±9V to ±25V
l HIGH CMRR: >100dB
l BUILT-IN GAIN SETTING RESISTORS:
G = 1, 100
l UPGRADES AD625

APPLICATIONS

l HIGH QUALITY MICROPHONE PREAMPS
(REPLACES TRANSFORMERS)
l MOVING-COIL PREAMPLIFIERS
l DIFFERENTIAL RECEIVERS
l AMPLIFICATION OF SIGNALS FROM:
Strain Gages (Weigh Scale Applications)
Thermocouples
Bridge Transducers

DESCRIPTION

The INA103 is a very low noise, low distortion monolithic
instrumentation amplifier. Its current-feedback
circuitry achieves very wide bandwidth and excellent
dynamic response. It is ideal for low-level audio
signals such as balanced low-impedance microphones.
The INA103 provides near-theoretical limit noise performance
for 200W source impedances. Many industrial
applications also benefit from its low noise and
wide bandwidth.
Unique distortion cancellation circuitry reduces distortion
to extremely low levels, even in high gain. Its
balanced input, low noise and low distortion provide
superior performance compared to transformer-coupled
microphone amplifiers used in professional audio
equipment.
The INA103’s wide supply voltage (±9 to ±25V) and
high output current drive allow its use in high-level
audio stages as well. A copper lead frame in the plastic
DIP assures excellent thermal performance.

The INA103 is available in 16-pin plastic DIP and
SOL-16 surface-mount packages. Commercial and Industrial
temperature range models are available.

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