A Delay-Compensated RC Oscillator With Constant Ramp Peak-Voltage Achieving 23 ppm/°C Temperature Coefficient from -40 to 100 °C 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 a delay-compensated RC relaxation oscillator for enhanced frequency stability. The proposed architecture employs a peak-sampling circuit to detect the charging-capacitor peak voltage. A feedback loop composed of an error amplifier and compensation resistors adaptively raises the capacitor DC baseline to compensate for comparator-delay-induced frequency error, while phase-alternating …