Title :
Kink-free SOI analog circuit design with floating-body/NFD MOSFETs
Author :
Chang, Duckhyun ; Fossum, Jerry G. ; Reynolds, Scott K. ; Pelella, Mario M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Florida Univ., Gainesville, FL, USA
Abstract :
A novel design approach to ensure general kink-free operation of floating-body/nonfully depleted (NFD) SOI analog circuits is described. The approach involves optimization of the bias and aspect ratios of all transistors that determine gain and current in a circuit such that they operate only in their kink-free voltage windows. The approach is demonstrated via a simulation-based design of the current cells of a 10-b floating-body/NFD DAC that shows good linearity and resolution at dc and frequencies up to 1 GHz. In contrast, the floating-body/NFD DAC without proper optimization shows poor and prohibitive performance.
Keywords :
CMOS analogue integrated circuits; MOSFET; SPICE; circuit analysis computing; circuit optimisation; digital-analogue conversion; integrated circuit design; silicon-on-insulator; 1 Hz to 1 GHz; CMOS technology; SOISPICE simulation; aspect ratio optimization; bias optimization; current cells; floating-body/NFD DAC; floating-body/NFD MOSFETs; floating-body/nonfully depleted SOI analog circuits; kink-free SOI analog circuit design; kink-free voltage windows; linearity; resolution; simulation-based design; Analog circuits; CMOS technology; Circuit simulation; Design optimization; Frequency; Linearity; MOSFET circuits; Solid modeling; Voltage;
Journal_Title :
Electron Device Letters, IEEE
