| Autor: |
Carniti, Paolo, De Matteis, Marcello, Giachero, Andrea, Gotti, Claudio, Maino, Matteo, Pessina, Gianluigi |
| Rok vydání: |
2012 |
| Předmět: |
|
| Zdroj: |
JINST 7 (2012) P11026 |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1088/1748-0221/7/11/P11026 |
| Popis: |
The CLARO-CMOS is an application specific integrated circuit (ASIC) designed for fast photon counting with pixellated photodetectors such as multi-anode photomultiplier tubes (Ma-PMT), micro-channel plates (MCP), and silicon photomultipliers (SiPM). The first prototype has four channels, each with a charge sensitive amplifier with settable gain and a discriminator with settable threshold, providing fast hit information for each channel independently. The design was realized in a long-established, stable and inexpensive 0.35 um CMOS technology, and provides outstanding performance in terms of speed and power dissipation. The prototype consumes less than 1 mW per channel at low rate, and less than 2 mW at an event rate of 10 MHz per channel. The recovery time after each pulse is less than 25 ns for input signals within a factor of 10 above threshold. Input referred RMS noise is about 7.7 ke^- (1.2 fC) with an input capacitance of 3.3 pF. Thanks to the low noise and high speed, a timing resolution down to 10 ps RMS was measured for typical photomultiplier signals of a few million electrons, corresponding to the single photon response for these detectors. |
| Databáze: |
arXiv |
| Externí odkaz: |
|
