Presentation
Digital Inside Analog: Continuous-Time Pipelined ADCs for Wideband Analog-to-Digital Conversion
DescriptionThis talk explores the concept of "Digital Inside Analog" through the lens of the continuous-time pipelined analog-to-digital converter (ADC). This sophisticated architecture is an example where digital signal processing works intimately within the analog signal path to achieve orders-of-magnitude improvement in performance for the same power dissipation. Unlike traditional discrete-time pipelines, the continuous-time approach eliminates power-hungry front-end sample-and-hold amplifiers while providing inherent anti-aliasing filtering. We delve into the unique challenges of this architecture, and how analog imperfections are mitigated using "digital-inside" calibration. By leveraging digital assistance, the continuous-time pipeline achieves a lower power disspation, higher linearity and lower noise than a traditional signal chain that consists of an antialias filter followed by an ADC. Measurements from prototype lowpass and bandpass CTP ICs will be given.
Event Type
Engineering Special Session
TimeTuesday, July 282:00pm - 2:30pm PDT
LocationSeaside Ballroom B