Title :
A 1V micropower FGMOS log-domain filter
Author :
Fernández, Rubén ; López-Martin, Antonio J. ; De la Cruz, Carlos A. ; Carlosena, A.
Author_Institution :
Dept. of Electr. & Electron. Eng., Univ. Publica de Navarra, Pamplona, Spain
Abstract :
A first-order CMOS log-domain filter is presented. The internal voltage swing compression due to its companding nature, together with the use of floating-gate MOS transistors and its class AB differential topology, allows the filter to operate at 1V while maintaining at the same time a large input range. Moreover, operation in weak inversion leads to very low power consumption. Simulation results demonstrate the proposed technique, which can be readily extended to higher-order filters.
Keywords :
CMOS analogue integrated circuits; active filters; compandors; current-mode circuits; low-power electronics; 1 V; CMOS; FGMOS log-domain filter; class AB differential topology; companding nature; first-order filter; floating-gate MOS transistors; higher-order filters; input range; internal voltage swing compression; power consumption; weak inversion; Circuit topology; Dynamic range; Electrodes; Electronic mail; Energy consumption; Low voltage; MOSFETs; Nonlinear filters; Parasitic capacitance; Threshold voltage;
Conference_Titel :
Electronics, Circuits and Systems, 2002. 9th International Conference on
Print_ISBN :
0-7803-7596-3
DOI :
10.1109/ICECS.2002.1045413
