TY  - JOUR
AU  - Schwab, B.
AU  - Zink, A.
AU  - Varner, Gary
AU  - Depaoli, D.
AU  - Hinton, J.
AU  - Liu, G.
AU  - Okumura, A.
AU  - Ross, D.
AU  - Schäfer, J.
AU  - Schoorlemmer, H.
AU  - Tajima, H.
AU  - Vandenbroucke, J.
AU  - White, Richard
AU  - Watson, Jason John
AU  - Zorn, Justus
AU  - Funk, Stefan
TI  - CTC and CT5TEA: An advanced multi-channel digitizer and trigger ASIC for imaging atmospheric Cherenkov telescopes
JO  - Nuclear instruments & methods in physics research / Section A
VL  - 1069
IS  - arXiv:2409.06435
SN  - 0168-9002
CY  - Amsterdam
PB  - North-Holland Publ. Co.
M1  - PUBDB-2024-06379
M1  - arXiv:2409.06435
M1  - arXiv:2409.06435
SP  - 169841
PY  - 2024
N1  - 18 pages, 26 figures, 1 table
AB  - We have developed a new set of Application-Specific Integrated Circuits (ASICs) of the TARGET family (CTC and CT5TEA), designed for the readout of signals from photosensors in cameras of Imaging Atmospheric Cherenkov Telescopes (IACTs) for ground-based gamma-ray astronomy. We present the performance and design details. Both ASICs feature 16 channels, with CTC being a Switched-Capacitor Array (SCA) sampler at 0.5 to 1GSa/s with a 16,384 sample deep storage buffer, including the functionality to digitize full waveforms at arbitrary times. CT5TEA is its companion trigger ASIC (though may be used on its own), which provides trigger information for the analog sum of four (and 16) adjacent channels. Since sampling and triggering takes place in two separate ASICs, the noise due to interference from the SCA is suppressed, and allows a minimal trigger threshold of ≤ 2.5 mV (0.74photo electrons (p.e.)) with a trigger noise of ≤ 0.5 mV (0.15p.e.). For CTC, a maximal input voltage range from −0.5V up to 1.7V is achieved with an effective bit range of > 11.6bits and a baseline noise of 0.7 mV. The cross-talk improved to ≤ 1
KW  - 0000 (autogen)
KW  - 1111 (autogen)
KW  - Data acquisition circuits (autogen)
KW  - Trigger concepts and systems (hardware and software) (autogen)
KW  - Gamma telescopes (autogen)
KW  - Imaging air Cherenkov telescope (autogen)
KW  - Camera electronics (autogen)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:001318607100001
DO  - DOI:10.1016/j.nima.2024.169841
UR  - https://bib-pubdb1.desy.de/record/616219
ER  -