1. Low-Power SAR ADCs: Basic Techniques and Trends
- Author
-
Pieter Harpe
- Subjects
Analog-to-digital converter (ADC) ,low power ,noise shaping ,successive approximation ,switched-capacitor circuit ,Electric apparatus and materials. Electric circuits. Electric networks ,TK452-454.4 - Abstract
With the advent of small, battery-powered devices, power efficiency has become of paramount importance. For analog-to-digital converters (ADCs), the successive approximation register (SAR) architecture plays a prominent role thanks to its ability to combine power efficiency with a simple architecture, a broad application scope, and technology portability. In this review article, the basic design challenges for low-power SAR ADCs are summarized and several design techniques are illustrated. Furthermore, the limitations of SAR ADCs are outlined and hybrid architecture trends, such as noise-shaping SAR ADCs and pipelined SAR ADCs, are briefly introduced and clarified with examples.
- Published
- 2022
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