J. Phys. IV France
Volume 12, Numéro 3, May 2002
Page(s) 203 - 206

J. Phys. IV France
12 (2002) Pr3-203
DOI: 10.1051/jp420020067

A 4.2 K readout channel in a standard 0.7  $\mu$m CMOS process for a photoconductor array camera

Y. Creten, O. Charlier, P. Merken, J. Putzeys and C. Van Hoof

Imec MCP-DET, Kapeldreef 75, 3001 Heverlee, Belgium

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.

© EDP Sciences 2002