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Analysis and Research of CMOS Chopper Stabilized Amplifiers
. a2 [# N1 H- d& U" q& W( kYANGYin-tang ,HEBin ,ZHU Zhang-ming, W% p, z" V: |0 c8 \
(Microelectronics Institute ,Xidian University ,Xi’an 7 1 00 7 1 ,China)
1 U5 z- V. P6 S2 i) wAbstract :This paper introduces the differences of several offset canceling techniques .Thenmodulation
6 E3 D% V: ? w# ~+ xprincipal of chopper stabilized amplifiers and the effects on their gains of the chopper frequency and the
9 P) X0 Y o9 Z8 H- _: ^phase shift are detailed .The values ofmodulated noise and offset are analyzed and implementation of) _1 ~/ C2 Z8 x1 x$ L. d
the chopper modulators given .Several techniques to reduce the residual offset are proposed .At last ,
+ S/ _, O8 W o6 I- K q; Gsome latest research findings and some new products utilizing chopper stabilization technique are given
+ H: ^( e) H+ R% x.Also some of the flaws and advantages of chopper stabilization technique and application fields of8 d5 q6 j0 T" J% R" T7 t# h
chopper stabilized amplifiers are stated .
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7 E3 M+ c; k, l回覆後 可以下載PDF附件 權限10 & 2RDB
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1 t7 u: l) |% N- C[ 本帖最後由 sjhor 於 2007-5-19 05:11 PM 編輯 ] |
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