First Measurements on the Timespot1 ASIC: a Fast-Timing, High-Rate Pixel-Matrix Front-End

TL;DR

This paper reports the initial performance measurements of the Timespot1 ASIC, a high-speed, high-rate pixel detector front-end designed for precise time measurements in high-energy physics, demonstrating promising timing resolution and configurable power consumption.

Contribution

It introduces the Timespot1 ASIC with a 32x32 pixel matrix, showcasing its first characterization for high-precision timing in space-time tracking applications.

Findings

Achieved a time resolution of 30 ps or better

Supported event rates up to 3 MHz per channel

Power consumption adjustable between 1.2W/cm² and 2.6W/cm²

Abstract

This work presents the first measurements performed on the Timespot1 ASIC. As the second prototype developed for the TimeSPOT project, the ASIC features a 32x32 channels hybrid-pixel matrix. Targeted to space-time tracking applications in High Energy Physics experiments, the system aims to achieve a time resolution of 30 ps or better at a maximum event rate of 3 MHz per channel with a Data Driven interface. Power consumption can be programmed to range between $1.2W/cm^{2}$ and $2.6W/cm^{2}$. The presented results include a description of the ASIC operation and a first characterization of its performance in terms of time resolution.