An 8.5 MHz 42 ppm/°C Relaxation Oscillator With Charge-Pump Delay Cancellation and Digital Chopping Demodulation https://sscs.ieee.org/wp-content/themes/movedo/images/empty/thumbnail.jpg 150 150 https://secure.gravatar.com/avatar/8fcdccb598784519a6037b6f80b02dee03caa773fc8d223c13bfce179d70f915?s=96&d=mm&r=g
Abstract:
This letter presents an RC oscillator featuring a mixed-signal compensation loop that simultaneously mitigates comparator offset, loop delay, switch on-resistance, and temperature dependency. The oscillator employs an auxiliary comparator, a charge pump, and a differential difference amplifier (DDA)-based main comparator to suppress ramping voltage overshoots caused by device and …