Title :
A high-accuracy CMOS on-chip RC oscillator
Author :
Wang, Bo ; Ko, Myeong-Lyong ; Yan, Qi
Author_Institution :
Design Team, Samsung Semicond. China R&D (SSCR), China
Abstract :
In this paper, a high-accuracy CMOS on-chip RC oscillator (OSC) for MCU application is presented. The oscillator can provide a 16 MHz output frequency with the total accuracy in ±1% in all process corner at 1.8 v and 55°C condition, ±2% in all process, supply voltage and temperature condition after 7bit digital trimming. This design features low sensitivity to power supply from 1.8 v to 6.0 v and temperature range from -45°C to 85°C. The on-chip oscillator was fabricated in a 130 nm standard digital CMOS process. The final die size is 78 um×132 um.Experimental result shows that all performance satisfies the specification.
Keywords :
CMOS integrated circuits; oscillators; power electronics; CMOS on-chip RC oscillator; MCU application; digital trimming; power supply; temperature -45 degC to 85 degC; voltage 1.8 V to 6.0 V; Accuracy; Clocks; Oscillators; Power supplies; System-on-a-chip; Temperature distribution; Transistors;
Conference_Titel :
Solid-State and Integrated Circuit Technology (ICSICT), 2010 10th IEEE International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-5797-7
DOI :
10.1109/ICSICT.2010.5667700
