Szczegóły publikacji
Opis bibliograficzny
Single photon counting readout IC with $44 e^−$ rms ENC and $5.5 e^−$ rms offset spread with charge sensitive amplifier active feedback discharge / Rafał KŁECZEK, Piotr KMON, Piotr MAJ, Robert SZCZYGIEŁ, Mirosław ŻOŁĄDŹ, Paweł GRYBOŚ // IEEE Transactions on Circuits and Systems. I, Regular Papers ; ISSN 1549-8328. — 2023 — vol. 70 no. 5, s. 1882–1892. — Bibliogr. s. 1891–1892, Abstr. — Publikacja dostępna online od: 2023-02-08
Autorzy (6)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 146563 |
|---|---|
| Data dodania do BaDAP | 2023-05-09 |
| Tekst źródłowy | URL |
| DOI | 10.1109/TCSI.2023.3241738 |
| Rok publikacji | 2023 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | IEEE Transactions on Circuits and Systems, I, Regular Papers |
Abstract
The paper presents the design and measurements of a low noise integrated circuit in a CMOS 130 nm for the readout of a hybrid pixel detector operating in a single photon counting mode. A core of IC contains a matrix of 128 256 square shaped pixels of 75 m pitch. Each readout pixel consists of a charge sensitive amplifier (CSA), a shaper, two discriminators, and two 14-bit counters. We present the novel CSA feedback circuitry with an effective resistance of 0.6 G and sets of switches, which allows low noise operation and fast return to the CSA output baseline at the same time providing the possibility of operation with a higher flux of input pulses. The measured equivalent noise charge of IC (bump-bonded to silicon sensor) is only 44 e rms at 15 C, the offset spread is 5.5 e rms and the energy resolution is FWHM 380 eV @ 8keV, which is currently the best result in single photon counting pixel detectors. The hybrid pixel detector can register up to 107 million photons/mm per second, while the power consumption per single pixel is about 42 W. IEEE
