Title :
Analog logic techniques steer around the noise
Author :
Allstot, David J. ; Kiaei, Sayfe ; Zele, Rajesh H.
Author_Institution :
Dept. of Electr. & Comput. Eng., Carnegie Mellon Univ., Pittsburgh, PA, USA
Abstract :
CMOS folded source-coupled logic (FSCL) and current-steering logic (CSL), developed to complement conventional CMOS static logic in high-precision mixed-signal applications, are examined. The key feature of FSCL and CSL is the reduction in power-supply noise-current spikes by two orders of magnitude or more compared to conventional CMOS logic. Hence, FSCL and CSL are attractive for the high-speed logic sections of CMOS mixed-mode integrated circuits, while conventional logic is appropriate for the low-speed digital subsections.<>
Keywords :
CMOS integrated circuits; integrated logic circuits; mixed analogue-digital integrated circuits; CMOS mixed-mode integrated circuits; current-steering logic; folded source-coupled logic; high-speed logic sections; mixed-signal applications; Analog circuits; CMOS digital integrated circuits; CMOS logic circuits; CMOS technology; Circuit noise; Inverters; Logic devices; Power supplies; Semiconductor device noise; Switching circuits;
Journal_Title :
Circuits and Devices Magazine, IEEE
