一種基於前饋補償技術的高性能CMOS運算放大器[簡]

sjhor

A High Performance CMOS Operational Amplifier Implemented with
Feedforward Compensation Technology
" `. U2 N/ }  P! R3 i( m- [# \2 HFUYong-chao ,YANGYin-tang , ZHUZhang-ming , ZHULei
(Microelectronics Institute ,XidianUniversity,Xi’an 710071 , China)
# t6 B( u$ X+ R' |( W: qAbstract : A high performance CMOS folded - cascoded operational amplifier with high open loop gain and low input
offset voltage is presented on the basis of the analysis and summary of traditional folded-cascoded circuits .The design is
implemented in a standard 0.35μmCMOSmixed-signal process and simulatedwithHspice .The simulated results of the
4 X% @% P5 C/ b1 B" foperational amplifier provide the DCopen loop gain with 95 dBand input offset voltagewith 0.023 mV,otherwisewith a
3 U6 p3 Z$ G( c6 o2 pF load capacity the phasemargin is 45.5°
  e, ^" u& ~$ n7 Y

1 [  E. V2 |3 z# M/ ^摘要:基于��CMOS 折�共源共��算放大器的分析和��,�用前���技�,��了一种高性能CMOS 折�
* Q9 w" {$ p+ ^( |共源共��算放大器,不�保�了高��增益,而且�大大�小了�放的�入失���。��采用TSMC 0.35 μm
混合信�CMOS 工���,采用Hspice �行仿真,仿真�果表明�放的直流��增益�95 dB ,�入失����
0.023 mV,���容�2 pF �的相位裕度�45.5°。
. Q4 R+ m9 I' \, k5 X
4 X; Q- O1 X( A9 @看看中國人的發展唷!  她們的進步空間很大唷! sales price 3RDB

遊客，如果您要查看本帖隱藏內容請回復

" G4 _* m7 e1 A2 ?# U4 H
[ 本帖最後由 sjhor 於 2007-5-15 09:00 PM 編輯 ]