The characteristics of differential stages has been investigated. It has been found that common-mode signals induce even-order harmonics, and that this nonlinearity is dependent upon the differential stage's constant current generator. This may affect the overall characteristics of a feedback amplifier and its compensation requirements. It is also shown that the usual feedback model no longer accurately describes the amplifier's performance.
Author:
Sandstrøm, Terje
Affiliation:
University of Oslo, Oslo, Norway
AES Convention:
68 (March 1981)
Paper Number:
1742
Publication Date:
March 1, 1981
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