SALT, a dedicated readout chip for high precision tracking silicon strip detectors at the LHCb Upgrade
SALT, a dedicated readout chip for high precision tracking silicon strip detectors at the LHCb Upgrade
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DOI：
10.1088/1748-0221/11/02/c02028
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发表时间：
2016-02-01
影响因子：
1.3
通讯作者：
Szumlak, T.
中科院分区：
文献类型：
--
作者：
Bugiel, Sz.;Dasgupta, R.;Szumlak, T.
上游跟踪器 (UT) 硅条探测器是现代化 LHCb 实验跟踪器系统的核心部分之一，将使用名为 SALT 的新型 128 通道读出 ASIC。它将从 UT 传感器提取模拟信号并将其数字化，执行数字信号处理并传输串行输出数据。 SALT 采用 CMOS 130 nm 工艺设计，采用新颖的架构，每个通道均包含模拟前端和快速 (40 MSps) 超低功耗 (< 0.5mW) 6 位 ADC。设计、制造和测试了模拟前端、6位SAR ADC、PLL和DLL等重要功能块的原型ASIC。还设计并制造了包含所有重要功能的 8 通道版本 SALT 芯片原型。介绍了 SALT 的架构和设计以及选定的初步测试结果。
The Upstream Tracker (UT) silicon strip detector, one of the central parts of the tracker system of the modernised LHCb experiment, will use a new128-channel readout ASIC called SALT. It will extract and digitise analogue signals from the UT sensors, perform digital signal processing and transmit a serial output data. The SALT is being designed in CMOS 130 nm process and uses a novel architecture comprising of analog front-end and fast (40 MSps) ultra-low power (< 0.5mW) 6-bit ADC in each channel. The prototype ASICs of important functional blocks, like analogue front-end, 6-bit SAR ADC, PLL, and DLL, were designed, fabricated and tested. A prototype of an 8-channel version of the SALT chip, comprising all important functionalities was also designed and fabricated. The architecture and design of the SALT, together with the selected preliminary tests results, are presented.