This paper presents a new approach on one of the difficult domains between the boundaries of electronics and physics which is demanded in high-resolution applications such as DACs and ADCs. In the proposed differential architecture, a novel combination of two strings of resistors is employed to improve all possible random and gradient errors in a single resistor string. A proper design and construction of a resistor string structure leads to an effective improvement in the linearity behavior of resistor string digital to analog and analog to digital converters. The proposed differential structure is simulated in 0.18 µm CMOS technology as a proof of concept. Moreover, the statistical investigation of the new structure is carried out by using the MATLAB. HSPICE results as well as statistical investigations show the accuracy improvement of the resistor string for about two bits in comparison with a single conventional resistor string. Therefore, more precise reference voltages required in high accuracy applications can be provided by the presented technique.

中文翻译：

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基于新设计技术提高电阻串精度

本文针对 DAC 和 ADC 等高分辨率应用所需的电子学和物理学边界之间的一个困难领域提出了一种新方法。在提议的差分架构中，采用了两串电阻器的新颖组合来改善单个电阻器串中所有可能的随机和梯度误差。电阻串结构的正确设计和构造可有效改善电阻串数模和模数转换器的线性行为。提议的差分结构在 0.18 µm CMOS 技术中进行了模拟，作为概念验证。此外，新结构的统计调查是通过使用MATLAB进行的。HSPICE 结果以及统计调查表明，与单个传统电阻串相比，电阻串的精度提高了大约两位。因此，所提出的技术可以提供高精度应用中所需的更精确的参考电压。