INA166
INA
166
www.ti.com
Low-Noise, Low-Distortion, G = 2000
INSTRUMENTATION AMPLIFIER
FEATURES
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LOW NOISE: 1.3nV/
√
Hz at 1kHz
LOW THD+N: 0.09% at 1kHz
WIDE BANDWIDTH: 450kHz
WIDE SUPPLY RANGE:
±
4.5V to
±
18V
HIGH CMR: > 100dB
GAIN SET WITH EXTERNAL RESISTOR
SO-14 SURFACE-MOUNT PACKAGE
APPLICATIONS
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MOVING-COIL TRANSDUCER AMPLIFIERS
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DIFFERENTIAL RECEIVERS
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BRIDGE TRANSDUCER AMPLIFIERS
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MICROPHONE AND HYDROPHONE
PREAMPS
DESCRIPTION
The INA166 is a very low-noise, low-distortion, mon-
olithic instrumentation amplifier. Its current-feedback
circuitry achieves very wide bandwidth and excellent
dynamic response over a wide range of gain. It is ideal
for low-level signals such as microphones or hydro-
phones. Many industrial, instrumentation, and medical
applications also benefit from its low noise and wide
bandwidth.
Unique distortion cancellation circuitry reduces dis-
tortion to extremely low levels, even in high gain.
The INA166 provides near-theoretical noise perfor-
mance for 200Ω source impedance. Its differential
input, low noise, and low distortion provide superior
performance as a low-level signal amplifier.
The INA166 is available in a space-saving SO-14
surface-mount package, specified for operation over
the –40°C to +85°C temperature range.
V
O
1
1
INA166
–
V
IN
4
3
A1
3kΩ
6kΩ
60kΩ
Sense
8
30.3Ω
3kΩ
12
5
A2
A3
9
V
O
G = 2000
6kΩ
60kΩ
Ref
10
V
IN
+
14
V
O
2
11
V+
6
V–
Copyright © 2000, Texas Instruments Incorporated
SBOS178
Printed in U.S.A. December, 2000
TI [ TEXAS INSTRUMENTS ]
