Author:

Keywords:

Science & Technology, Physical Sciences, Physics, Multidisciplinary, Physics, 01 Mathematical Sciences, 02 Physical Sciences, Applied Physics, Fluids & Plasmas, 49 Mathematical sciences, 51 Physical sciences

Abstract:

The cryogenic design of a cold CMOS readout channel to be used in the Photoconductor Array Camera and Spectrometer (PACS) aboard the Herschel Space Observatory (HSO, formerly called FIRST) [1], is presented. Robust architectures and optimized sizing reduce the effect of cryogenic anomalities on the circuit. Simulation results and tests, both at room temperature and 4 K show a non-linearity <2%, a hysteresis of <5mV and noise <100nV/Hz(1/2) @ 30Hz.