Title :
1.5-V square-root domain first-order filter with multiple operating points
Author :
De La Cruz-Blas, C.A. ; López-Martín, A. ; Carlosena, A. ; Hernandez, L. ; Sarmiento, A.
Author_Institution :
Dept. of Electr. & Electron. Eng., Public Univ. of Navarra, Pamplona
Abstract :
A 1.5-V square-root domain (SRD) first-order filter possessing multiple operating points is presented. The basic building blocks of the filter are based on MOS translinear loops and dynamic level shifter techniques, allowing low voltage operation and an extended dynamic range. However the dynamic level shifters introduce positive feedback inducing three operating points to the filter through a negative differential resistance. A detailed analysis of such performance employing a bi-port analysis is offered. Simulation and measurement results are provided in order to demonstrate the analysis and circuits proposed
Keywords :
MOSFET circuits; circuit feedback; filters; negative resistance circuits; network analysis; two-port networks; 1.5 V; MOS translinear loops; bi-port analysis; dynamic level shifter; extended dynamic range; low voltage operation; multiple operating points; negative differential resistance; positive feedback; square root domain filter; Circuit simulation; Differential equations; Dynamic range; Electrical resistance measurement; Extraterrestrial measurements; Low voltage; MOSFETs; Optical filters; Performance analysis; Prototypes;
Conference_Titel :
Circuits and Systems, 2006. ISCAS 2006. Proceedings. 2006 IEEE International Symposium on
Conference_Location :
Island of Kos
Print_ISBN :
0-7803-9389-9
DOI :
10.1109/ISCAS.2006.1693002
