Minimization of Parasitic Effects on the Design of an Accurate 2-MHz RC Oscillator for Low Voltage and Low Power Applications

Author

Choi, Jung Hyun

Author_Institution

Freescale Semicond. of Brazil, Brazil Semicond. Technol. Center, Jaguariuna

fYear

2005

fDate

4-7 Sept. 2005

Firstpage

219

Lastpage

223

Abstract

An accurate design of a 2MHz oscillator for low voltage and low power applications is presented, demonstrating that the parasitic effects are determinant on the performance of high frequency RC oscillators. This RC circuit can operate in a power supply range of 1.8V to 3.2V with total current consumption of 14muA. The trimming is implemented by weighted-capacitors approach allowing better power saving and trimming linearity over 1.6 to 2.4MHz with a centered frequency of 2MHz. Simulation results are for 0.28mum BiCMOS technology. The final die size is 240mum times 130mum

Keywords

BiCMOS integrated circuits; RC circuits; integrated circuit design; low-power electronics; oscillators; 0.28 micron; 1.8 to 3.2 V; 130 micron; 14 muA; 2 MHz; 240 micron; BiCMOS technology; RC circuit; RC oscillator; circuit simulation; high frequency oscillator; low power application; low voltage application; parasitic effect minimization; trimming linearity; weighted capacitors approach; CMOS technology; Circuit simulation; Clocks; Costs; Frequency; Integrated circuit technology; Low voltage; Minimization; Oscillators; Robustness; 2MHz RC Circuit; Design; Minimization; Oscillator; Parasitic Effects; Performance;

fLanguage

English

Publisher

ieee

Conference_Titel

Integrated Circuits and Systems Design, 18th Symposium on

Conference_Location

Florianopolis

Print_ISBN

1-59593-174-0

Type

conf

DOI

10.1109/SBCCI.2005.4286860

Filename

4286860