Speaker
Description
The IGNITE project develops technical solutions for the next generation of trackers at colliders. It plans to implement an integrated module, comprising sensor, electronics, and fast readout, aimed at fast 4D-tracking. System pixels are required to have pitch around 50 µm and time resolution below 30 ps on the full chain (from sensor to time to digital conversion).
In the present paper we present recent measurement results concerning the performance of a prototype ASIC (Ignite64), which features a pixel matrix of 64x64 pixels, having 55 µm pitch.
The ASIC explores circuital solutions for Analog Front End and Time-to-Digital Converter circuits and is dedicated to the characterization of fast timing silicon sensors. Performed measurements show that the AFE and TDC have time resolution below 20 ps rms, with very small performance dispersion across the full pixel matrix and satisfying the given system requirements.
The structures integrated into the Ignite64 prototype have been validated for integration in a larger area ASIC, named the Ignite-ER, featuring a 320x256 pixel matrix, 45 µm pitch. We will also present design criteria and expected performance of the Ignite-ER ASIC, to be submitted in the coming months.