We present a low-power CMOS charge preamplifier, suitable for use with silicon detectors having a medium value of capacitance. Noise considerations and a long decay time of the output signal command the use of unusually large devices such as an input transistor having W=10000 μm and a 7-MΩ feedback resistor. Both of these devices were integrated inside the chip. We present and compare theoretical predictions together with the results of post-layout simulation and the measurements obtained
Published in:
Nuclear Science, IEEE Transactions on
(Volume:44
,
Issue:
1
)
Date of Publication: Feb 1997