RIA: High-Speed, High-Resolution, Analog-to-Digital Conversion in CMOS Technologies

虽然传统的视频速率应用不需要更多 分辨率超过10位，新的应用，如宽动态， 距离成像系统需要至少12位分辨率。 的 这些应用程序的要求超出了 目前，使用CMOS的最先进的模数转换器 技术. 这一领域的进展可以大大减少 这些应用的信号处理成本， 使用数字信号处理技术。 的目标 这些项目是： 1. 来创造一种技术， 模数转换接口的局限性 转换率的相关损失，且不使用微调 或校准，以及， 2. 通过制造原型来展示这些技术。 1的焦点。将进行流水线模拟数字转换 用于高分辨率、视频速率的CMOS技术接口 应用. 电路技术，可以克服实际的 将研究线性限度。 由于这些技术可能 降低最大转换率，并行组合， 数字信号处理技术，有潜力， 将探讨如何克服这种减少。

While traditional video-rate applications have required no more than 10-bit resolution, new applications such as wide-dynamic- range imaging systems require at least 12-bit resolution. The requirements for such applications exceed the capabilities of present, state-of-the-art analog-to-digital converters using CMOS technologies. Progress in this area could dramatically reduce the cost of signal processing for these applications by allowing the use of digital signal processing techniques. The objectives of this project are: 1. to create techniques that can overcome the practical linearity limitations of analog-to-digital conversion interfaces without an associated loss in conversion rate and without the use of trimming or calibration, and, 2. to demonstrate these techniques by fabricating prototypes. The focus of 1. will be on pipelined, analog-to-digital conversion interfaces in CMOS technologies for high-resolution, video-rate applications. Circuit techniques that can overcome the practical linearity limitations will be studied. Since these techniques may reduce the maximum conversion rate, combinations of parallelism and digital-signal-processing techniques that have the potential to overcome such a reduction will be explored.