An Organic VCO-Based ADC for Quasi-Static Signals Achieving 1LSB INL at 6b Resolution

📋 论文概要

该论文提出了一种基于有机薄膜晶体管（OTFT）的VCO型模数转换器（ADC），专为化学和温度传感器等准静态信号设计。通过采用VCO架构和数字校准技术，在6位分辨率下实现了1LSB的积分非线性（INL），为柔性有机电子系统中的传感器接口提供了低功耗、低成本解决方案。

💡 主要创新点

• 首次在有机TFT工艺中实现VCO型ADC，利用频率调制将模拟信号转换为数字码，避免了传统有机ADC中复杂的比较器设计。
• 通过数字后处理校准技术，在有机器件固有失配和漂移下仍能达到1LSB的INL，显著提升了有机ADC的线性度。

🏷 关键词

📄 原文摘要

read out using RFID protocols, are an important future application of large-area organic electronics. The first steps towards flexible organic electronics were code generators for RFID tags [1]. To realize flexible smart sensors it is also essential to develop analog sensor interfaces and ADCs, which will enable the integration of sensors, data processing and RF communication (Fig. 6.6.1) on the same plastic foil [2]. This paper focuses on the design of an organic ADC for quasi-static signals, like the ones provided by chemical and temperature sensors. Only a few ADCs made with organic TFTs (OTFTs) have been reported [3,4] so far. Their linearity is limited by the poor matching typical of organic technologies

👥 作者与机构

Daniele Raiteri1, Pieter van Lieshout2, Arthur van Roermund1, Eugenio Cantatore1

Eindhoven University of Technology, Eindhoven, The Netherlands, Polymer Vision, Eindhoven, The Netherlands 1 2 Smart sensors embedded in packaging films for food or pharmaceuticals, and