Document Type
Conference Item
Publication Date
12-1-2014
Abstract
MEMS resonator based oscillators, however, are now a technical reality which are extremely cost-effective, very small in size in comparison with quartz crystal based oscillators and can be fabricated in the conventional CMOS process, monolithically. In this work a new sustaining amplifier is designed for a 17.22 MHz MEMS resonator which has an unloaded quality factor of 1000. A total transimpedance open loop gain of 122 dB-Ω has been achieved over the bandwidth of interest to drive this resonator for a sustained oscillation. Total DC power consumption of this sustaining amplifier is 6.3mW from a 1.8v DC source in 0.18μm CMOS process.
Keywords
Electrostatic resonator, MEMS, TIA, 0.18μm CMOS, Sustaining amplifier.
Divisions
fac_eng
Event Title
Proceedings of the 3rd International Conference on Computer Engineering & Mathematical Sciences (ICCEMS 2014)
Event Location
Langkawi, Malaysia
Event Dates
04-05 Dec 2014
Event Type
conference