Title :
Exact design of all-MOS log filters
Author :
Redondo, Xavier ; Serra-Graells, Francisco
Author_Institution :
Inst. de Microelectron. de Barcelona, Spain
Abstract :
This paper presents a circuit technique to implement log-domain filters in only-MOS technologies. The approach is based on analytical design combined with advanced MOSFET models in subthreshold, so almost exact equations are presented. This work includes all-MOS circuit proposals to implement each part of the new design approach. All these required blocks are built to truly operate at very low-voltage supplies (1V). Also, circuit examples are given for a digital 0.35μm CMOS technology.
Keywords :
CMOS integrated circuits; MOS integrated circuits; active filters; low-power electronics; 0.35 microns; 1 V; MOSFET models; all-MOS circuit; all-MOS log filters; analytical design; digital CMOS technology; exact equations; log-domain filters; low-voltage supplies; only-MOS technologies; CMOS technology; Compressors; Equations; Filters; Integrated circuit modeling; Integrated circuit technology; MOSFET circuits; Proposals; Semiconductor device modeling; Voltage;
Conference_Titel :
Circuits and Systems, 2004. ISCAS '04. Proceedings of the 2004 International Symposium on
Print_ISBN :
0-7803-8251-X
DOI :
10.1109/ISCAS.2004.1328122
