Title :
A micropower log domain FGMOS filter
Author :
Rodríguez-Villegas, Esther O. ; Rueda, Adoración ; Yúfera, Alberto
Author_Institution :
Instituto de Microelectron. de Sevilla (IMSE-CNM), Seville Univ., Spain
Abstract :
In this paper, a CMOS implementation of a low voltage micropower logarithmic biquad based on floating gate MOS transistors (FGMOS) is presented. The translinear principle applied to the floating gate MOS transistor leads to an easy implementation of the state-space equations without using the source terminal in the loop. The voltage supply can be reduced and also there is no need of separate wells. The technique is proven in this low/band pass filter working at 1 V with a maximum power consumption of 2 μW. The filter parameters can be adjusted in more than two decades, being the upper frequency around 150 kHz.
Keywords :
CMOS analogue integrated circuits; biquadratic filters; low-power electronics; state-space methods; 1 V; 150 kHz; 2 muW; CMOS implementation; filter parameters; floating gate MOS transistors; low voltage micropower logarithmic biquad; micropower log domain FGMOS filter; state-space equations; translinear principle; Band pass filters; Batteries; Capacitance; Circuits; Energy consumption; Equations; Frequency; Limiting; Low voltage; MOSFETs;
Conference_Titel :
Circuits and Systems, 2002. ISCAS 2002. IEEE International Symposium on
Print_ISBN :
0-7803-7448-7
DOI :
10.1109/ISCAS.2002.1010224
