Title :
A 1-V, 6-nW programmable 4th-order bandpass filter for biomedical applications
Author :
Sundarasaradula, Yuwadee ; Thanachayanont, Apinunt
Author_Institution :
Fac. of Eng., King Mongkut´s Inst. of Technol. Ladkrabang, Bangkok, Thailand
Abstract :
This paper presents the design and realization of a programmable 4th-order bandpass filter for biomedical applications in a standard 0.18 μm CMOS technology. The center frequency is adjustable from 80 Hz to 7 KHz, using a 6-bit digital-to-analog-converter (DAC). At a center frequency of 1 KHz and quality factor of 4, the simulated dynamic range is 53.6 dB for 1% total harmonic distortion (THD) and the simulated total input-referred noise, integrated from 875 Hz to 1.125 KHz, is 177 μV. The filter consumes only 6 nW from a 1-V single power supply voltage.
Keywords :
CMOS integrated circuits; active filters; band-pass filters; programmable filters; CMOS technology; biomedical applications; digital-analog converter; frequency 80 Hz to 7 kHz; power 6 nW; programmable fourth order band-pass filter; size 0.18 mum; voltage 1 V; Band-pass filters; CMOS integrated circuits; Capacitors; Generators; Noise; Power harmonic filters; Q-factor; bandpass filter; biomedical applications; low-power; subthreshold operation;
Conference_Titel :
New Circuits and Systems Conference (NEWCAS), 2015 IEEE 13th International
Conference_Location :
Grenoble
DOI :
10.1109/NEWCAS.2015.7182039
