Title :
A low voltage second order biquad using pseudo floating-gate transistors
Author :
Naess, Oivind ; Olsen, Espen A. ; Berg, Yngvar ; Lande, Tor Sverre
Author_Institution :
Dept. of Inf., Oslo Univ., Norway
Abstract :
We present a low-voltage/low power second order filter. The filter consists of 6 pseudo floating-gate transistors operated in weak inversion. The filter is suitable for any kind of application requiring low frequency ranges, such as biomedical products. An electronic cochlea consisting of replicas of the filter is presented. The filter operates at a supply voltage below 1 V, consumes power down to 5 nW, and has a harmonic distortion suppression of -60 dB.
Keywords :
audio signal processing; biomedical electronics; biquadratic filters; circuit simulation; harmonic distortion; low-power electronics; medical signal processing; network synthesis; 1 V; 5 nW; biomedical products; electronic cochlea; harmonic distortion suppression; low frequency range filter; low power biquadratic filter; low voltage filter; pseudo floating-gate transistors; second order biquad filter; transistor weak inversion operation; Circuit synthesis; Coupling circuits; Frequency; Harmonic distortion; Low voltage; MOSFETs; Power filters; Power harmonic filters; Resistors; Threshold 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.2003.1205516
