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

fYear

2000

fDate

2000

Firstpage

99

Lastpage

104

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Integrated Circuits and Systems Design, 2000. Proceedings. 13th Symposium on

Conference_Location

Manaus

Print_ISBN

0-7695-0843-X

Type

conf

DOI

10.1109/SBCCI.2000.876015

Filename

876015