This article explores the significant performance enhancements that MEMS technology enables in accurate real-time clock applications, writes Paul Nunn, senior business manager, Maxim Integrated.
MEMS (microelectromechanical systems) technology has been implemented in accurate real-time clocks (RTCs), making them extremely rugged, highly accurate both over time and temperature, and significantly smaller than clocks built using standard cylindrical crystal technology.
With 47 times less area and 182 times less volume than that of a 32.768kHz tuning-fork cylindrical crystal, the MEMs resonator technology provides a significant advantage in size and packaging options for RTCs today.
This size differential allows for smaller packaging options, provides significantly enhanced ruggedness in high-vibration and shock environments, and demonstrates little to no aging (< ±1ppm total) over the life of the device.
