| Autor: |
Smale, Nigel, Bauer, C, Knöpfle, K T, Schwingenheuer, B, Trunk, U, Fallot-Burghardt, W |
| Jazyk: |
angličtina |
| Rok vydání: |
2007 |
| Předmět: |
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| Popis: |
This paper describes the F-CSA104 architecture and its measurement results. The F-CSA104 is for γ spectroscopy with Ge detectors. It is a low noise, fully integrated, four channel XFAB 0.6μm CMOS technology ASIC, that has been developed for the GERDA experiment. Each channel contains a charge sensitive preamplifier (CSA) followed by a 11.7MHz differential line driver. It has been particularly designed to operate in liquid argon (T = 87K/-186°C) and to have a measuring sensitivity of 660e- with an ENC of 110e-, after offline filtering with 10μs shaping, when connected to a 30pF load. Special techniques are used to improve the SNR such as a large input PMOS FET, an integrated 500MΩ CSA feedback resistor and a noise degeneration drain resistor. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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