Electrical engineering

Bandwidth (computing)

Capacitor

Noise shaping

Computer architecture

Engineering

Voltage

Artificial intelligence

Electronic engineering

Computer science

Synthetic aperture radar

Boosting (machine learning)

Successive approximation ADC

Telecommunications

IEEE Open Journal of the Solid-State Circuits Society

The Noise-Shaping (NS) SAR is an attractive new ADC architecture that emerged in the last decade. It combines the advantages of the SAR and the DSM architectures. NS SAR shows excellent potential for high efficiency and low cost, and is highly suited to process scaling. This paper gives an overview of the history of NS-SAR, reviews the fundamentals challenges, and summarizes the latest developments, including advanced loop filtering techniques, DAC mismatch mitigation, kT/C mitigation, and bandwidth boosting. A comprehensive comparison of the state-of-the-art NS-SAR ADCs is provided, and conclusions are derived.

An Overview of Noise-Shaping SAR ADC: From Fundamentals to the Frontier