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DC amplifiers are mostly used for very low level applications because they offer very less dc drift and high common mode rejection capabilities.(a) True(b) FalseI got this question in my homework.My question is based upon Preamplifiers topic in chapter Recording System of Biomedical Instrumentation

Answer»

Right answer is (b) False

For EXPLANATION: DC amplifiers are not PRACTICAL for very LOW level applications because of dc drift and poor common-mode rejection capabilities. They are usually employed as pen drive amplifiers in direct writing recorders. They are used for medium gain applications down to about 1 mV SIGNAL levels for full scale.



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