A 41 ps ASIC time-to-digital converter for physics experiments
A 41 ps ASIC time-to-digital converter for physics experiments
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DOI：
10.1016/j.nima.2011.08.031
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发表时间：
2011-12-11
影响因子：
1.4
通讯作者：
Strollo, Antonio G. M.
中科院分区：
文献类型：
--
作者：
Russo, Stefano;Petra, Nicola;Strollo, Antonio G. M.
提出了一种用于物理实验的时间数字转换器。提出的TDC是基于一个同步计数器和一个异步精细计数器。测量的精细部分是使用诺拉逆变器获得的，它提供了更高的分辨率。采用180 nm CMOS工艺制作了原型IC。实验结果表明，该TDC具有41 Ps的分辨率，微分非线性为0.35LSB，积分非线性为0.77LSB，单次精度可忽略不计。整个动态范围等于18 μ s。拟议的TDC设计使用闪存架构，减少死区时间。本文报道的数据表明，我们的设计非常适合现在和未来的粒子物理实验。(C)2011 Elsevier B.V.保留所有权利。
We present a novel Time-to-Digital (TDC) converter for physics experiments. Proposed TDC is based on a synchronous counter and an asynchronous fine interpolator. The fine part of the measurement is obtained using NORA inverters that provide improved resolution. A prototype IC was fabricated in 180 nm CMOS technology. Experimental measurements show that proposed TDC features 41 Ps resolution associated with 0.35LSB differential non-linearity, 0.77LSB integral non-linearity and a negligible single shot precision. The whole dynamic range is equal to 18 mu s. The proposed TDC is designed using a flash architecture that reduces dead time. Data reported in the paper show that our design is well suited for present and future particle physics experiments. (C) 2011 Elsevier B.V. All rights reserved.