This paper presents a rad-hard ASIC that implements a set of instrumentation channels that are highly configurable in terms of resolution, conversion rate, and input voltage range, providing a flexible solution for space applications requiring the digital acquisition of slow input signals with medium-to-high resolutions up to 16 bits. The differential input voltage range can be extended up to 4 Vpp. The instrumentation channels combine a programmable-gain, high input impedance instrumentation amplifier and dual-slope analog-to-digital converters with radiation hardening by design (RHBD) techniques in a standard 0.35 μm CMOS technology. Experimental results demonstrate the performance of the ASIC against radiation effects up to 318 krad of TID, absence of latch-up up to at least 81.8 MeV·cm2/mg, SEUs LETth of 22.5 MeV·cm2/mg and proper operation over an extended operating temperature range.
A rad-hard multichannel front-end readout ASIC for space applications
2014-05-01
1855460 byte
Conference paper
Electronic Resource
English
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