A Σ-Δ Modulator Based on an Inverter-based Integrator with Dynamic Current Switch

Autor:	Chunhua Zhang, Mingchao Jian, Meng Yuan, Chunbing Guo
Rok vydání:	2023
Předmět:	History Computer Science Applications Education
Zdroj:	Journal of Physics: Conference Series. 2477:012086
ISSN:	1742-6596 1742-6588
DOI:	10.1088/1742-6596/2477/1/012086
Popis:	This paper presents a low-power high-resolution 3rd-order 1-bit Σ-Δ modulator based on an inverter-based integrator with a dynamic current switch. To reduce the power consumption of the modulator circuit, a dynamic current switch branch is added to form a low-power inverter-based integrator. A 3rd-order 1-bit Σ-Δ modulator is designed in a TSMC 65 nm CMOS technology to verify the effectiveness of the proposed integrator circuit. The prototype Σ-Δ modulator achieves 102.4 dB SNDR, 16.71 Bit ENOB in a 2 KHz signal BW at an Over Sampling Ratio (OSR) of 160, while consuming only 29.5-μW. And the FOMSNDR is 180.7 dB.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1674c4aebc121cd75ba9c7db01c10911 https://doi.org/10.1088/1742-6596/2477/1/012086 Zobrazit plný text záznamu