A novel low voltage low power oscillator as a capacitive sensor interface for portable applications

by: Giuseppe Ferri, Pierpaolo De Laurentiis

Sensors and Actuators A: Physical, Vol. 76, No. 1-3. (30 August 1999), pp. 437-441.

View FullText article

DOI, ScienceDirect

Reviews [Write a review of this article]

There are no reviews of this article

Find related articles from these CiteULike users

summerxia

Find related articles with these CiteULike tags

capacitive, low-power, low-voltage, oscillator, sensor

Abstract

A novel CMOS oscillator has been developed to be used in integrated capacitive sensor interfaces. The proposed topology has been designed in order to operate at a reduced supply voltage (the minimum being 1.2 V) with low power consumption. A 1.4-V design with an overall power consumption of only 23 [mu]W is presented. A five decades capacitive range (10 fF-100 pF), to which corresponds a frequency span of about 300 Hz-3 MHz, has been considered. The circuit shows low noise, low sensitivity to supply voltage variations and good output linearity. These characteristics have been verified to be fully satisfactory if compared to corresponding performance of two other typical solutions presented in literature.

@article{citeulike:423791, abstract = {A novel CMOS oscillator has been developed to be used in integrated capacitive sensor interfaces. The proposed topology has been designed in order to operate at a reduced supply voltage (the minimum being 1.2 V) with low power consumption. A 1.4-V design with an overall power consumption of only 23 [mu]W is presented. A five decades capacitive range (10 fF-100 pF), to which corresponds a frequency span of about 300 Hz-3 MHz, has been considered. The circuit shows low noise, low sensitivity to supply voltage variations and good output linearity. These characteristics have been verified to be fully satisfactory if compared to corresponding performance of two other typical solutions presented in literature.}, author = {Ferri, Giuseppe and De Laurentiis, Pierpaolo }, citeulike-article-id = {423791}, doi = {10.1016/S0924-4247(98)00368-9}, journal = {Sensors and Actuators A: Physical}, keywords = {capacitive, low-power, low-voltage, oscillator, sensor}, month = {August}, number = {1-3}, pages = {437--441}, posted-at = {2005-12-06 23:39:55}, priority = {2}, title = {A novel low voltage low power oscillator as a capacitive sensor interface for portable applications}, url = {http://dx.doi.org/10.1016/S0924-4247(98)00368-9}, volume = {76}, year = {1999} }

RIS record

TY - JOUR ID - citeulike:423791 L3 - citeulike-article-id:423791 TI - A novel low voltage low power oscillator as a capacitive sensor interface for portable applications JF - Sensors and Actuators A: Physical VL - 76 IS - 1-3 SP - 437 EP - 441 N2 - A novel CMOS oscillator has been developed to be used in integrated capacitive sensor interfaces. The proposed topology has been designed in order to operate at a reduced supply voltage (the minimum being 1.2 V) with low power consumption. A 1.4-V design with an overall power consumption of only 23 [mu]W is presented. A five decades capacitive range (10 fF-100 pF), to which corresponds a frequency span of about 300 Hz-3 MHz, has been considered. The circuit shows low noise, low sensitivity to supply voltage variations and good output linearity. These characteristics have been verified to be fully satisfactory if compared to corresponding performance of two other typical solutions presented in literature. KW - capacitive KW - low-power KW - low-voltage KW - oscillator KW - sensor AU - Ferri, Giuseppe AU - De Laurentiis, Pierpaolo PY - 1999/08/30/ UR - http://dx.doi.org/10.1016/S0924-4247(98)00368-9 ER -

RIS BibTeX