Title :
A generator of trapezoidal association of transistors (TAT): improving analog circuits in a pre-diffused transistor array
Author :
Aita, André Luiz ; Bampi, Sergio ; Choi, Jung Hyun
Author_Institution :
Dept. of Electron. & Comput., Fed.. Univ. of Santa Maria, Brazil
Abstract :
This paper presents the Trapezoidal Association of Transistors Generator (TATGen) tool, targeted to mixed analog-digital design on the PROCIMS Sea-of-Transistors (SoT) array (1996), in 1.0 μm CMOS digital technology (single poly, 2 metal layers). The focus is mainly in the generator, its characteristics, functionality and related details. The TATGen, based on (1994), runs an algorithm specially designed for this purpose in order to build an equivalent composite transistor, which provides good performance of analog circuits on the digital pre-diffused structure. Some analog circuits designed and fabricated in both methodology (SoT and full-custom) are presented for fair comparisons. Layouts obtained with TATGen are briefly shown, and limitations of TATs are also discussed
Keywords :
CMOS digital integrated circuits; SPICE; circuit CAD; integrated circuit layout; mixed analogue-digital integrated circuits; 1 mum; 1.0 μm CMOS digital technology; PROCIMS; Sea-of-Transistors array; SoT array; TATGen tool; analog circuits; full-custom design; mixed analog-digital design; pre-diffused transistor array; transistors; trapezoidal association; trapezoidal association of transistors generator; Analog circuits; Analog integrated circuits; Analog-digital conversion; Analog-digital integrated circuits; CMOS analog integrated circuits; CMOS digital integrated circuits; CMOS technology; Costs; Integrated circuit technology; SPICE;
Conference_Titel :
Integrated Circuits and Systems Design, 2000. Proceedings. 13th Symposium on
Conference_Location :
Manaus
Print_ISBN :
0-7695-0843-X
DOI :
10.1109/SBCCI.2000.876015
