A time-to-digital converter based on a digitally controlled oscillator

Cadeddu, S.; Aloisio, A.; Ameli, F.; Bifulco, Paolo; Bocci, V.; Casu, L.; Giordano, R.; Izzo, V.; Lai, A.; Loi, A.; Mastroianni, S.

doi:10.1109/rtc.2016.7543099

Cited by 5 publications

(4 citation statements)

References 28 publications

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“…Table 2 summarizes the main characteristics of the three TDC architectures. The advantage with respect to the 130 nm design is mainly in size (90 µm × 130 µm vs. 23 µm × 22 µm) and max resolution (750 ps vs 190 ps LSB), as we can see from reference [7]. For power consumption the comparison between the two technologies shows a slightly advantage for the 130 nm technology, as we can expect from the fact the leakage is larger in 28 nm technology as well as the switching power, caused by the higher adopted frequency.…”

Section: Tdcsmentioning

confidence: 94%

“…Architecture (a), shown in Fig. 4a, is based on a design realized in 130 nm technology for the LHCb muon detector upgrade [7]. The phase measurement is activated by the incoming signal that switches on the Digitally Controlled Oscillator (DCO).…”

Section: Tdcsmentioning

confidence: 99%

“…When the rise-edge master clock arrives, the fast counter (and the DCO) is stopped, the measurement is completed. To reduce the systematic error inherent to a digital delay chain, the same dithering system described in [7] has also been implemented in this scheme.…”

Section: Tdcsmentioning

confidence: 99%

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The first ASIC prototype of a 28 nm time-space front-end electronics for real-time tracking

Piccolo¹,

Rivetti²,

Cadeddu³

et al. 2020

Proceedings of Topical Workshop on Electronics for Particle Physics — PoS(TWEPP2019)

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A front-end ASIC for 4D tracking is presented. The prototype includes the block necessary to build a pixel front-end chain for timing measurement, as independent circuits. The architecture includes a charge-sensitive amplifier, a discriminator with programmable threshold, and a timeto-digital converter. The blocks were designed with target specifications in mind including: an area occupation of 55 µm × 55 µm, a power consumption tens of micro ampere per channel and timing a resolution of at least 100 ps. The prototype has been designed and integrated in 28 nm CMOS technology. The presented design is part of the TimeSpOT project which aims to reach a high-resolution particle tracking both in space and in time, in order to provide front-end circuitry suitable for next generation colliders.

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Section: Tdcsmentioning

confidence: 94%

Section: Tdcsmentioning

confidence: 99%

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The first ASIC prototype of a 28 nm time-space front-end electronics for real-time tracking

Piccolo¹,

Rivetti²,

Cadeddu³

et al. 2020

Proceedings of Topical Workshop on Electronics for Particle Physics — PoS(TWEPP2019)

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“…Moreover, at high rate, the TDC digitisation speed might not be enough to keep up with the particle rate, and more than one TDC is needed for each pixel. Therefore, the particle rate has a direct impact on the minimum dimension of the pixels [4]. In the 130 nm technological node a TDC needs approximately ∼ 100×100 µm 2 , that scales to ∼ 50×50 µm 2 in the 65 nm node, and hopefully, to ∼ 25×25 µm 2 in the 28 nm one.…”

Section: Electronics Challenge For 4d Trackingmentioning

confidence: 99%

Fast Timing Detectors towards a 4-Dimensional Tracking

Sola¹,

Arcidiacono²,

Cartiglia³

et al. 2019

Proceedings of the 39th International Conference on High Energy Physics — PoS(ICHEP2018)

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In this contribution we review the growing interest in implementing large-area fast-timing detectors with a time resolution of 30 -35 ps, based on Low-Gain Avalanche Detectors. Precise time information added to tracking brings benefits to the performance of the detectors by reducing the background and sharpening the resolution; it improves tracking performances and simplifies tracking combinatorics. Large-scale high-precision timing detectors have to face formidable challenges in almost every aspect: sensors performance, segmentation and radiation tolerance, very low-power and low-noise electronics, cooling, low material budget, and large data volumes. We will report on the current status and new development of such detectors for high energy physics, in view of their possible use in the experiment upgrades at the High Luminosity LHC and beyond.

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