Signal-Dependent Analog-To-Digital Converter Based on MINIMAX Sampling
Signal-Dependent Analog-To-Digital Converter Based on MINIMAX Sampling
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基于 MINIMAX 采样的信号相关模数转换器
DOI：
10.1109/isocc.2012.6407054
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
and T. Onoye
中科院分区：
文献类型：
--
作者：
I. Homjakovs;M. Hashimoto;T. Hirose;and T. Onoye
本文提出了一种信号相关模数转换器（ADC）的物理实现，称为MINIMAX ADC。每当模拟信号达到其本地最大值或最小值时，该ADC都会捕获一个样本。在该ADC中，采样自然地适应输入信号频率，从而实现高数据压缩率和功耗降低。采用180nm CMOS工艺实现了一个8位MINIMAX模数转换器。测试结果表明，MINIMAX模数转换器在有效信号较少的情况下功耗较低，与传统的同步模数转换器相比功耗降低了20%。
This paper presents a physical implementation of a signal-dependent analog-to-digital converter (ADC), called MINIMAX ADC. This ADC captures a sample every time an analog signal reaches its local maximum or minimum value. In this ADC, sampling naturally adapts to input signal frequency, which enables high data compression rate and power reduction to be achieved. A 8-bit MINIMAX ADC was implemented in 180nm CMOS technology. Measurement results show that the proposed MINIMAX ADC consumes lower power for less active signals, and the power reduction from conventional synchronous ADC is up to 20%.