Noise Analysis of Auto-Reset Switched Capacitor Circuits

Thermal noise is one of the most important limiting factors on the performance of switched-capacitor (sc) circuits. auto-reset switched capacitor (ar-sc) structure imposes an extra serial switch to the integrating capacitor which seems increase the thermal noise power in comparison with traditional sc circuits. reported improvements of ar-sc would be considered in company with noise analysis. noise analysis of the ar-sc-integrator and a second order ar-sc-bpf (band pass filter) are presented and compared to the corresponding conventional sc circuits. analytical results are validated by matlab and hspice