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

Volume

1

fYear

2003

fDate

25-28 May 2003

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on

Print_ISBN

0-7803-7761-3

Type

conf

DOI

10.1109/ISCAS.2003.1205516

Filename

1205516