A Capacitively-Coupled Autozeroed and Chopped Operational Amplifier

This thesis describes the design and simulation of a capacitively-coupled autozeroed and chopped operational amplifier in the TSMC high-voltage BCD 0.18 μm 5 V technology. It uses chopping and autozeroing to achieve high precision (10 μV offset and 50 nV/√Hz noise density) and a capacitively-coupled input stage to safely handle beyond-the-rails...

Chopper PWM-Based Class-D Amplifier

Class-D amplifiers are widely used in audio applications that require a high power efficiency. A high PSRR is beneficial when the power supply contains significant audio band content. Due to mismatches present in the feedback, these can dominate the PSRR of the class-D amplifier, provided the amplifier has sufficient loop gain. No literature has...