Instrumentation Amplifier National Semiconductor Linear Brief Mar

The Datasheet Archive - 100 Million Datasheets from 7500 Manufacturers.

Instrumentation Amplifier National Semiconductor Linear Brief Mar

Datasheet Thumbnail

Top Searches for this datasheet

Instrumentation Amplifier
Instrumentation Amplifier
National Semiconductor Linear Brief March 1969
differential input single-ended output instrumentation amplifier most versatile signal processing amplifiers available used precision amplification differential signals while rejecting large values common mode noise using integrated circuits high level performance obtained minimum cost
Figure shows basic instrumentation amplifier which provides volt output input while rejecting greater than common mode noise obtain good input characteristics voltage followers buffer input signal LM102 specifically designed voltage follower usage input impedance with input currents This high input impedance provides benefits allows instrumentation amplifier used with high source resistances still have error allows source resistances unbalanced over 000X with degradation common mode rejection followers drive balanced differential amplifier shown Figure which provides gain rejects common mode voltage gain ratio With values shown gain differential signals Figure shows instrumentation amplifier where gain linearly adjustable from with single resistor LM101A connected fast inverter used attenuator feedback loop using active attenuator
very impedance always presented feedback resistors common mode rejection unaffected gain changes LM101A used shown greater bandwidth than LM107 used feedback network without instability gain linearly dependent equal obtain good common mode rejection ratios necessary that ratio match ratio example resistors circuit shown Figure total mismatch common mode rejection would times closed loop gain circuit shown Figure would have constant common mode rejection independent gain either circuit possible trim resistors obtain common mode rejection ratios excess optimum performance several items should considered during construction used zeroing output should high resolution mechanically stable potentiometer avoid zero shift from occurring with mechanical disturbances Since there several operating close proximity power supplies should bypassed with disc capacitors insure stability resistors should same type have same temperature coefficient applications differential instrumentation amplifier differential voltage measurements bridge outputs strain gauge outputs level voltage measurement
8501
FIGURE Differential-Input Instrumentation Amplifier
LB-1
C1995 National Semiconductor Corporation
8501
RRD-B30M115 Printed
Instrumentation Amplifier
GAIN ADJUST 10b4
8501
FIGURE Variable Gain Differential-Input Instrumentation Amplifier
LIFE SUPPORT POLICY NATIONAL'S PRODUCTS AUTHORIZED CRITICAL COMPONENTS LIFE SUPPORT DEVICES SYSTEMS WITHOUT EXPRESS WRITTEN APPROVAL PRESIDENT NATIONAL SEMICONDUCTOR CORPORATION used herein Life support devices systems devices systems which intended surgical implant into body support sustain life whose failure perform when properly used accordance with instructions provided labeling reasonably expected result significant injury user
National Semiconductor Corporation 1111 West Bardin Road Arlington 76017 1(800) 272-9959 1(800) 737-7018
critical component component life support device system whose failure perform reasonably expected cause failure life support device system affect safety effectiveness
LB-1
National Semiconductor Europe (a49) 0-180-530 Email cnjwge tevm2 Deutsch (a49) 0-180-530 English (a49) 0-180-532 Fran (a49) 0-180-532 Italiano (a49) 0-180-534
National Semiconductor Hong Kong 13th Floor Straight Block Ocean Centre Canton Tsimshatsui Kowloon Hong Kong (852) 2737-1600 (852) 2736-9960
National Semiconductor Japan 81-043-299-2309 81-043-299-2408
National does assume responsibility circuitry described circuit patent licenses implied National reserves right time without notice change said circuitry specifications

Other recent searches