All-Standard-Cell-Based Analog-to-Digital Architectures Well-Suited for Internet of Things Applications

• Type: Article in International Scientific Journal
• Date: 2022

Authors

Correia, A (Author) Other; Vítor Grade Tavares (Author) FEUP; Barquinha, P (Author) Other; Goes, J (Author) Other

Journal

Title: Journal of Low Power Electronics and Applications

Vol. 8

Final page: 64

ISSN: 2079-9268

Publisher: MDPI

Indexing

ISI Web of Knowledge - 0 Citations

Other information

Authenticus ID: P-00X-QKX

DOI: 10.3390/jlpea12040064

Abstract (EN): In this paper, the most suited analog-to-digital (A/D) converters (ADCs) for Internet of Things (IoT) applications are compared in terms of complexity, dynamic performance, and energy efficiency. Among them, an innovative hybrid topology, a digital-delta (& UDelta;) modulator (& UDelta;M) ADC employing noise shaping (NS), is proposed. To implement the active building blocks, several standard-cell-based synthesizable comparators and amplifiers are examined and compared in terms of their key performance parameters. The simulation results of a fully synthesizable Digital-& UDelta;M with NS using passive and standard-cell-based circuitry show a peak of 72.5 dB in the signal-to-noise and distortion ratio (SNDR) for a 113 kHz input signal and 1 MHz bandwidth (BW). The estimated FoMWalden is close to 16.2 fJ/conv.-step.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 13