Title :
Mismatch of MOSFET small signal parameters under analog operation
Author :
Thewes, Roland ; Linnenbank, Carsten ; Kollmer, Ute ; Burges, Stefan ; Schaper, Ulrich ; Brederlow, Ralf ; Weber, Werner
Author_Institution :
Corp. Res., Infineon Technol., Munich, Germany
Abstract :
The matching behavior of drain current I/sub D/ and small signal parameters transconductance g/sub m/ and differential output conductance g/sub DS/ of MOSFETs is investigated under typical analog operating conditions. Whereas for the normalized standard deviations of I/sub D/ and g/sub m/ the well known proportionality to (W/spl times/L/sub eff/)/sup -1/2/ is obtained, the normalized standard deviation of g/sub DS/ clearly deviates from this width and length dependence. For this parameter, a proportionality to W/sup -1/2/ is found.
Keywords :
MOS analogue integrated circuits; MOSFET; MOSFET small signal parameters; analog operation mismatch; differential output conductance; drain current; transconductance; Automotive engineering; CMOS process; Circuit synthesis; Current measurement; Geometry; MOS devices; MOSFET circuits; Measurement standards; Threshold voltage; Transconductance;
Journal_Title :
Electron Device Letters, IEEE
