一种宽电源电压带隙基准源的设计_英文_.pdf

第 29 卷 　第 8 期 半 　导 　体 　学 　报 Vol . 29 　No . 8 2008 年 8 月 J O U RN AL O F S EM I CON D U C TO RS Aug . ,2008 Design of a Bandgap Reference with a Wide Supply Voltage Range Sun Yueming , Zhao Men glian , and Wu Xiaobo ( I ns t it ute of VL S I D es i g n , Z hej i ang Uni vers ity , H angz hou 　3 10027 , Chi na) Abstract : A n onc hip v olt age r ef er e nce wit h a w i de supp ly volt age r a nge is r e quir e d by som e ap p licat i ons , esp ecially t h at of p ow er m a n agem e nt ( PM ) c ont r oller chip s ap p lie d t o t elec om mu nicat i on , aut om ot ive , ligh t ing e quip m e nt , et c . , w h e n high p ow er sup p ly volt age is nee de d . A cc or din gly , a new b an dgap r ef er ence w it h a wi de supp ly volt age r a nge is p r op ose d . D ue t o t h e i mp r ove d st r uct ur e ,it f eat ur es a high p ow er sup p ly r ej ect i on r at i o ( PS R R ) a n d high t e mp er at ur e st abilit y . I n a ddit i on , a n auxiliar y micr op ow er r ef er e nce is int r oduce d t o sup p or t t h e sleep m ode of t h e PM c hip a n d r e duce its st a n dby p ow er c onsu mp t i on . Th e auxiliar y r ef er e nce p r ovi des bias cur r e nts in n or m al m ode a n d a 128V r ef er ence v olt age in sleep m ode t o r ep lace t h e m ain r ef er ence a n d save p ow er . Si mulat i on r esults sh ow t h at t h e r ef er e