Nanopower CMOS Relaxation Oscillators With Sub-100  $\hbox{ppm}/^{\circ}\hbox{C}$ Temperature Coefficient
A Submicrowatt 1.1-MHz CMOS Relaxation Oscillator With Temperature Compensation
A 63,000 Q-factor relaxation oscillator with switched-capacitor integrated error feedback
A precision relaxation oscillator with a self-clocked offset-cancellation scheme for implantable biomedical SoCs
A 280nW, 100kHz, 1-cycle start-up time, on-chip CMOS relaxation oscillator employing a feedforward period control scheme
An On-Chip CMOS Relaxation Oscillator With Voltage Averaging Feedback