Title :
Design of low-voltage low-power SC filters for high-frequency applications
Author :
Aloisi, W. ; Giustolisi, G. ; Palumbo, G.
Author_Institution :
Catania Univ., Italy
Abstract :
In this communication an approach for designing low-voltage and low-power SC filters for high-frequency applications is presented. It is based on the use of single-ended double-sampling integrator cells based on low-voltage operational transconductance amplifiers which take advantage of a dynamic biasing and a clock booster. Following the proposed approach, a 6-MHz low-pass elliptic SC filter was designed in a 0.35-μm CMOS process. The filter exhibits a 1.5-dB in-band ripple and a stopband attenuation of -35 dB while powered with 1.5-V power supply. The die size is 0.29 mm2 while dissipating only 11 mW.
Keywords :
CMOS analogue integrated circuits; elliptic filters; integrating circuits; low-pass filters; low-power electronics; radiofrequency filters; switched capacitor filters; 0.35 micron; 1.5 V; 11 mW; 6 MHz; CMOS process; HF applications; OTA; clock booster; double sampling integrator cells; dynamic biasing; elliptic SC filter; high-frequency applications; low-pass SC filter; low-power SC filters; low-voltage SC filters; operational transconductance amplifiers; single-ended integrator cells; Capacitors; Clocks; Differential amplifiers; Filters; Power supplies; Rail to rail amplifiers; Signal processing; Switches; Transconductance; Voltage;
Conference_Titel :
Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on
Print_ISBN :
0-7803-7761-3
DOI :
10.1109/ISCAS.2003.1205636
