storage unit - university of chicagoedg.uchicago.edu/~bogdan/psec5/pres_4_9_14/storageunit.pdf ·...
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Storage Unit
4/9/2014
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Storage Unit
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Storage Unit – Charge: 0V to 1V
Vout
Sample
Reset
Vin
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Storage Unit – Discharge in time
“Cap”: 2.8u x 2.8u
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Discharge in time – Changed Sw size
“Cap”: 2.8u x 2.8u
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Discharge in time – Changed Sw size, “Cap” size
“Cap”: 6u x 6u
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Discharge in time – Changed Sw size, larger“Cap”
“TransCap”: 8u x 8u; C~2pF; I = 2nA.
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Discharge in time – PSEC4 sampling cell
PSEC4: Real Cap: 10u x 10u; C=14fF; I = 314pA
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Can we still charge it in 10ns?
“Cap”: 6u x 6u
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Can we still charge it in 10ns?
“Cap”: 8u x 8u
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To Do:
- What is the acceptable discharge time;
- Best Switch and “Cap” size for application;
- Include new Storage Cell into PSEC5 Core schematic.