Title :
A Micropower Sixth Order Switched Capacitor Leapfrog Lowpass Filter
Author :
Pinier, H. ; Krummenacher, F. ; Valencic, V.
Author_Institution :
Swiss Fed. Inst. of Technol., Lausanne, Switzerland
Abstract :
Based on strays-insensitive switched capacitor biquad building blocks realizing the bilinear z-transform, a 6th order leapfrog filter has been integrated in low voltage CMOS Si-gate technology. As it simulates a passive LC ladder filter, the leapfrog configuration features the same low sensitivity properties thereof. For 16 KHz operation, the power dissipation is 25 μW with ± 1,5 V supplies. Chip area is 2,7 mm2.
Keywords :
CMOS integrated circuits; Z transforms; bilinear systems; elemental semiconductors; ladder filters; low-pass filters; low-power electronics; passive filters; silicon; switched capacitor filters; Si; bilinear z-transform; frequency 16 kHz; low voltage CMOS technology; micropower sixth order switched capacitor leapfrog lowpass filter; passive LC ladder filter; power 25 muW; power dissipation; strays-insensitive switched capacitor biquad building block; voltage -1.5 V; voltage 1.5 V; Active filters; Band pass filters; CMOS technology; Capacitors; Equations; Frequency; Low voltage; Passive filters; Power dissipation; Transfer functions;
Conference_Titel :
Solid-State Circuits Conference, 1982. ESSCIRC '82. Eighth European
Conference_Location :
Brussels
