基于130nm CMOS低压级联编码浮动逆变放大器的sub - 1v 90db - sndr功率/BW可扩展DTDSM

IF 5.2 1区工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Circuits and Systems I: Regular Papers Pub Date : 2025-01-28 DOI:10.1109/TCSI.2025.3531666

Xinjie Wu;Yuyan Liu;Zhangming Zhu;Xiaopeng Yu;Nick Nianxiong Tan;Zhong Tang

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引用次数: 0

摘要

本文提出了一种用于物联网应用的功率和带宽（BW）可扩展性的sub-1V delta-sigma调制器（DSM）。它是建立在一个全动态和低压浮动逆变放大器（LVFIA）。为了扩展LVFIA的功率和BW可扩展性，其相对独立于电源的偏置电流由DSM的采样频率$f_{s}$自动控制。动态技术，如自动归零和斩波应用，以实现低噪声。在130nm CMOS中制造的sub-1V DSM显示出近乎一致的SNDR （~90dB）和线性可扩展的功率和BW (2.5nW/Hz)，缩放范围为$ $ × 30$ $f_{s}$。实现了Walden FoM和Schreier FoM分别为51.3fJ/ convstep和175.7dB。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A Sub-1 V 90 dB-SNDR Power/BW Scalable DTDSM Using Low-Voltage Cascoded Floating Inverter Amplifiers in 130 nm CMOS

This paper presents a sub-1V delta-sigma modulator (DSM) with power and bandwidth (BW) scalability for IoT applications. It is built around a fully dynamic and low-voltage floating inverter amplifier (LVFIA). To extend the power and BW scalability of the LVFIA, its relatively supply-independent bias current is auto-controlled by DSM’s sampling frequency

$f_{s}$

. Dynamic techniques such as auto-zeroing and chopping are applied to achieve low noise. Fabricated in a 130nm CMOS, the proposed sub-1V DSM shows a near-consistent SNDR (~90dB) and linearly scalable power and BW (2.5nW/Hz) over a

$\times 30$

scaling range of

$f_{s}$

. It achieves Walden FoM and Schreier FoM of 51.3fJ/conv-step and 175.7dB, respectively.

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来源期刊

IEEE Transactions on Circuits and Systems I: Regular Papers 工程技术-工程：电子与电气

CiteScore

9.80

自引率

11.80%

发文量

441

审稿时长

2 months

期刊介绍： TCAS I publishes regular papers in the field specified by the theory, analysis, design, and practical implementations of circuits, and the application of circuit techniques to systems and to signal processing. Included is the whole spectrum from basic scientific theory to industrial applications. The field of interest covered includes: - Circuits: Analog, Digital and Mixed Signal Circuits and Systems - Nonlinear Circuits and Systems, Integrated Sensors, MEMS and Systems on Chip, Nanoscale Circuits and Systems, Optoelectronic - Circuits and Systems, Power Electronics and Systems - Software for Analog-and-Logic Circuits and Systems - Control aspects of Circuits and Systems.