Noise Analysis of Switched-Current Circuits

被引：0
|
作者：
Ivan H. H. Jørgensen
Gudmundur Bogason
机构：
[1] OTICON A/S,
来源：
Analog Integrated Circuits and Signal Processing | 1999年 / 18卷
关键词：
switched current; noise; measurement technique; sigma-delta modulator; current mode;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The understanding of noise in analog sampled data systems is vital for the design of high resolution circuitry in the discrete time domain. In this paper a general description of sampled and held noise is presened. The noise calculations are verified by measurements on an analog delay line implemented using switched-current (SI) technique. The SI delay line is based on a new topology current copier (CCOP). For the verification of the theory a new measurement technique is used. This technique enables one to measure the power spectral density of sampled and held noise which is below the continuous time noise floor.
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页码：69 / 77
页数：8
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