Design Methodology for Controlled-Q Resonators in OTA-based Filters

This paper presents a design methodology for high quality factor resonators based on operational transconductance amplifier (OTA) employed in active filters. The quality factor of a resonator, as its main specification, is translated to the requirements of the OTA. Moreover, the effects of the OTA’s finite output resistance and internal poles are investigated. The results provide a useful chart and a simple methodology to design a resonator with a desired quality factor. The design methodology has been validated by fabricating a resonator with 8 MHz resonance frequency and a quality factor of around 10 using UMC 180-nm CMOS technology.


Published in:
Proceedings of the 2015 IEEE Radio Frequency Integrated Circuits Symposium, 371-374
Presented at:
Radio Frequency Integrated Circuits Symposium (RFIC), 2015 IEEE, Phoenix, AZ, USA, May 17-19, 2015
Year:
2015
Publisher:
IEEE
ISBN:
978-1-4799-7641-6
Keywords:
Laboratories:




 Record created 2015-06-08, last modified 2018-03-17

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