一种增益可编程、截止频率可调的低频LPF

2021 IEEE International Midwest Symposium on Circuits and Systems (MWSCAS) Pub Date : 2021-08-09 DOI:10.1109/MWSCAS47672.2021.9531864

E. I. Barros, O. J. Cinco-Izquierdo, M. T. Sanz

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引用次数: 0

摘要

提出了一种截止频率可调、增益可编程的一阶低通滤波器。所提出的电路是基于一个超源跟随式变换器，具有电流转向第二阶段。该电路采用标准的0.18 μ m CMOS工艺，功耗为2.99 μ W，电源为1.8V。该滤波器显示从560hz到22khz的可调频率，具有6到20db的可编程增益。

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A Low-Frequency LPF with Programmable Gain and Tunable Cut-off Frequency

This paper presents a first-order low-pass filter with tunable cut-off frequency and programmable gain. The proposed circuit is based on a super-source follower transconductor, with a current steering second stage. The circuit was designed in a standard 0.18µm CMOS process with a power consumption of 2.99µW for a power supply of 1.8V . The filter shows a tunable frequency from 560 Hz to 22 kHz, with programmable gain from 6 to 20 dB.

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来源期刊

2021 IEEE International Midwest Symposium on Circuits and Systems (MWSCAS)

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