Y. Hu et al., A VERY-LOW POWER-CONSUMPTION, LOW-NOISE ANALOG READOUT CHIP FOR CAPACITIVE DETECTORS WITH A POWER-SUPPLY OF 3.3 V, Analog integrated circuits and signal processing, 17(3), 1998, pp. 249-260
An analog frontend block of a VLSI readout chip, dedicated to high spa
tial resolution X or beta ray imaging, using capacitive silicon detect
ors, is described. In the present prototype, an ENC noise of 343 elect
rons at 0 pF with a noise slope of 28 electrons/pF has been obtained f
or a peaking time of 10 mu s, a 37 mV/fC conversion gain, a 3.5 V powe
r supply and a 150 mu W/channel power consumption.