用于环境光传感器的连续时间低通Sigma-Delta ADC

W. Lai
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引用次数: 1

摘要

本文提出了一种连续时间低通sigma-delta模拟数字转换器(ADC),用于环境光传感器应用,具有积分器链和加权电容前馈求和(CICFF)拓扑结构,这是一种低功耗实现的理想设计。前馈信号的求和由加权电容和神经网络(NN)实现,避免了CT低通ΣΔ调制器开关的尝试和错误,不需要任何额外的有源元件,可用于菲涅耳设计的宽前视角环境光传感器。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Continuous-Time Low-Pass Sigma-Delta ADC for Ambient Light Sensor Applications
This article presents a continuous-time lowpass sigma-delta analog to digital converter (ADC) for ambient light sensor applications with a chain of integrators and with weighted capacitive feedforward summation (CICFF) topology which is a desirable design for implementation in low consumption. The summation of feedforward signals is implemented by weighted capacitors with neural network (NN) to avoid try and error of switching for CT lowpass ΣΔ modulator, without the necessity of any additional active components which can be used Fresnel design for wide front of view angle ambient light sensor.
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