ASIC PMm2 08/02/2008
BLOC DIAGRAM OF PMm2 ASIC 08/02/2008 Selma CONFORTI. conforti@lal.in2p3.fr
Selma CONFORTI. conforti@lal.in2p3.fr PREAMPLIFIER Vi Input signal Variable Cin 2.5p;5p;10p ADJUSTABLE VALUES FOR ALL INPUTS 10ns Number of pe:1/3pe to 300 pe 1 pe = 160 fC 1/3 pe = 53 fC 300 pe = 48pC Q= i dt, if dt=10ns then i:5uA to 5mA If Ri=50 ohm then Vi= 250uV to 250mV Variable Cf 1pF;0.5p; 0.25p;0.125p;…. 7fF ADJUSTABLE VALUES FOR EVERY INPUTS 08/02/2008 Selma CONFORTI. conforti@lal.in2p3.fr
Preamplifier output waveforms Cf. from 1p to 2p Gain from 1 to 2.5 Vin=20mV Cin set (2.5p) 08/02/2008 Selma CONFORTI. conforti@lal.in2p3.fr
Selma CONFORTI. conforti@lal.in2p3.fr Creal Cobt 1 1,023 1,5 1,53 1,75 1,78 1,875 1,9 1,937 1,973 1,968 2 1,9836 2,019 1,9914 2,031 08/02/2008 Selma CONFORTI. conforti@lal.in2p3.fr
Selma CONFORTI. conforti@lal.in2p3.fr Vout 1/Vout CF 244,4 0,00409165 1 163,5 0,00611621 1,5 140,3 0,00712758 1,75 131 0,00763359 1,875 126,7 0,00789266 1,937 124,7 0,00801925 1,968 123,8 0,00807754 1,9836 123,1 0,00812348 1,9914 08/02/2008 Selma CONFORTI. conforti@lal.in2p3.fr
Selma CONFORTI. conforti@lal.in2p3.fr Preamplifier output waveforms Variable Cf By steps of 7fF;15fF; 32fF;… Vin=20mV Cin set (2.5p) Delta (Vout)/Vout minimum About 0.008 08/02/2008 Selma CONFORTI. conforti@lal.in2p3.fr
Preamplifier output waveforms Variable Cin 2.5p;5p;10p Vin=20mV Cf set (1p) 08/02/2008 Selma CONFORTI. conforti@lal.in2p3.fr
Selma CONFORTI. conforti@lal.in2p3.fr Output Linearity Output waveforms For differents Vin From 1mV to 250mV INPUT RANGE 1/3pe-300pe 50fC-50pC 250uV-250mV Good Output Linearity G=5 Until 250mV (50pC) 300pe 08/02/2008 Selma CONFORTI. conforti@lal.in2p3.fr
Selma CONFORTI. conforti@lal.in2p3.fr Output waveforms For differents Vin from 1mV to 250mV 2.5 Vout(V) Output Linearity G maximum=10 Until 160mV (32pC) 200pe 20pe 300pe 200pe 08/02/2008 Selma CONFORTI. conforti@lal.in2p3.fr
Selma CONFORTI. conforti@lal.in2p3.fr Variable Cin 1.25p;2.5p;5p 08/02/2008 Selma CONFORTI. conforti@lal.in2p3.fr
Selma CONFORTI. conforti@lal.in2p3.fr Cin=2.5p;Cf=1p ADJUSTABLE W/L 08/02/2008 Selma CONFORTI. conforti@lal.in2p3.fr