Low-power priority Address-Encoder and Reset-Decoder data-driven readout for Monolithic Active Pixel Sensors for tracker system-猫眼课题宝

DOI：

10.1016/j.nima.2015.02.063

发表时间：

2015-06

期刊：

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment

影响因子：

1.4

通讯作者：

中科院分区：

物理与天体物理3区

文献类型：

作者：

P. Yang;G. Aglieri;C. Cavicchioli;P. Chalmet;N. Chanlek;A. Collu;C. Gao;H. Hillemanns;A. Junique;M. Kofarago;M. Keil;T. Kugathasan;D. Kim;Jung-Soo Kim;A. Lattuca;C. A. M. Tobon;D. Marras;M. Mager;P. Martinengo;G. Mazza;H. Mugnier;L. Musa;C. Puggioni;J. Rousset;F. Reidt;P. Riedler;W. Snoeys;S. Siddhanta;G. Usai;J. V. Hoorne;J. Yi

高能粒子物理中使用的有源像素传感器需要低功耗以减少探测器材料预算，低集成时间以减少堆积的可能性，以及快速读出以提高探测器数据能力。为了满足这些要求，一种新的地址编码器和复位解码器（AERD）的异步电路的快速读出的像素矩阵已被开发。AERD数据驱动读出架构基于仲裁树操作地址编码和复位解码，并且允许我们仅读出命中像素。与传统的单片有源像素传感器（MAPS）的卷帘快门读出结构相比，AERD具有读出时间短、功耗低等优点，尤其适用于低命中率的情况。在芯片外围用与时钟同步的信号控制读出，允许矩阵中良好的数字和模拟信号分离，并降低功耗。AERD电路已在TowerJazz 180 nm CMOS成像传感器（CIS）工艺中实现，像素中具有完全互补的CMOS逻辑。它工作在10 MHz，矩阵高度为15 mm。读出一个像素所消耗的能量约为72 pJ。还讨论了将读出速度提高到40 MHz的方案。配备AERD的传感器芯片已经生产和表征。测试结果，包括电子束测量。

Active Pixel Sensors used in High Energy Particle Physics require low power consumption to reduce the detector material budget, low integration time to reduce the possibilities of pile-up and fast readout to improve the detector data capability. To satisfy these requirements, a novel Address-Encoder and Reset-Decoder (AERD) asynchronous circuit for a fast readout of a pixel matrix has been developed. The AERD data-driven readout architecture operates the address encoding and reset decoding based on an arbitration tree, and allows us to readout only the hit pixels. Compared to the traditional readout structure of the rolling shutter scheme in Monolithic Active Pixel Sensors (MAPS), AERD can achieve a low readout time and a low power consumption especially for low hit occupancies. The readout is controlled at the chip periphery with a signal synchronous with the clock, allows a good digital and analogue signal separation in the matrix and a reduction of the power consumption. The AERD circuit has been implemented in the TowerJazz 180 nm CMOS Imaging Sensor (CIS) process with full complementary CMOS logic in the pixel. It works at 10 MHz with a matrix height of 15 mm. The energy consumed to read out one pixel is around 72 pJ. A scheme to boost the readout speed to 40 MHz is also discussed. The sensor chip equipped with AERD has been produced and characterised. Test results including electrical beam measurement are presented.

Low-power priority Address-Encoder and Reset-Decoder data-driven readout for Monolithic Active Pixel Sensors for tracker system

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