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Burr-Brown Corporation - Low Noise/ Low Distortion INSTRUMENTATION AMPLIFIER

Numéro de référence INA103KU
Description Low Noise/ Low Distortion INSTRUMENTATION AMPLIFIER
Fabricant Burr-Brown Corporation 
Logo Burr-Brown Corporation 





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INA103KU fiche technique
®
INA103
INA103
INA103
Low Noise, Low Distortion
INSTRUMENTATION AMPLIFIER
FEATURES
q LOW NOISE: 1nV/Hz
q LOW THD+N: 0.0009% at 1kHz, G = 100
q HIGH GBW: 100MHz at G = 1000
q WIDE SUPPLY RANGE: ±9V to ±25V
q HIGH CMRR: >100dB
q BUILT-IN GAIN SETTING RESISTORS:
G = 1, 100
q UPGRADES AD625
APPLICATIONS
q HIGH QUALITY MICROPHONE PREAMPS
(REPLACES TRANSFORMERS)
q MOVING-COIL PREAMPLIFIERS
q DIFFERENTIAL RECEIVERS
q AMPLIFICATION OF SIGNALS FROM:
Strain Gages (Weigh Scale Applications)
Thermocouples
Bridge Transducers
DESCRIPTION
The INA103 is a very low noise, low distortion mono-
lithic 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 per-
formance for 200source impedances. Many indus-
trial 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. 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 In-
dustrial temperature range models are available.
Offset Offset
–Gain Drive Null Null
12 3 4
–Input 16
–Gain Sense 15
–RG 13
G = 100 14
+RG 6
+Gain Sense 2
+Input 1
+
A1
3k
60.6
3k
A2
+
6k
6k
6k
11 Sense
A3 10 Output
+
6k
7 Ref
5
+Gain Drive
9
V+
8
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/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
©1990 Burr-Brown Corporation
PDS-11016H
INA103Printed in U.S.A. March, 1998
®

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