计量IC的模拟输入的外部过滤器

摘要：本应用笔记检查方法，以减少不良副作用，如串扰和不准确的， Teridian公司的Maxim产品组合™电能计量IC 。在简要回顾ADC输入，本文讨论的计量IC ，以及使用铁氧体磁珠，以减少RF敏感度不同的电容器和电阻的影响。

Maxim > Design Support > Technical Documents > Application Notes > Energy Measurement & Metering > APP 5292
Keywords: metering IC, analog input, filter, component selection, LPF, ferrites, capacitors, inverter, solar, inter-harmonics,
noise rejection, lowpass filter, RF noise
Jun 04, 2012
APPLICATION NOTE 5292

External Filters for the Analog Inputs of Metering
ICs
By:JP Junker
Jun 04, 2012

Abstract:This application note examines ways to reduce adverse side effects, such as crosstalk and inaccuracies, in the
Maxim portfolio of Teridian energy metering ICs. After briefly reviewing the ADC inputs, this article discusses the effect
of different capacitors and resistors on metering