1.2-V fully differential OTA-C lowpass filter based on bulk-driven MOS transistors

2011 20th European Conference on Circuit Theory and Design (ECCTD) Pub Date : 2011-10-13 DOI:10.1109/ECCTD.2011.6043311

J. M. Carrillo, M. A. Domínguez, J. F. Duque-Carrillo, G. Torelli

引用次数: 8

Abstract

An OTA-C filter implementation suited to low-voltage operation is presented. An operational transconductance amplifier (OTA) based on a bulk-driven input stage with enhanced DC gain and bandwidth was designed and included in a 1.2-V tunable fully differential second-order OTA-C lowpass filter. Experimental results, obtained in standard 0.35-µm CMOS technology, showed a dynamic range around 70 dB with a total power consumption of 382 µW for a filter cutoff frequency of 3 MHz.

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基于体驱动MOS晶体管的1.2 v全差分OTA-C低通滤波器

提出了一种适用于低压工作的OTA-C滤波器实现方案。设计了一种基于块驱动输入级的运算跨导放大器(OTA)，该放大器具有增强的直流增益和带宽，并将其包含在1.2 v可调谐全差分二阶OTA- c低通滤波器中。在标准0.35µm CMOS技术下获得的实验结果显示，在滤波器截止频率为3 MHz的情况下，动态范围约为70 dB，总功耗为382µW。

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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来源期刊

2011 20th European Conference on Circuit Theory and Design (ECCTD)

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