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1 Storage Unit 4/9/2014

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Page 1: Storage Unit - University of Chicagoedg.uchicago.edu/~bogdan/PSEC5/Pres_4_9_14/StorageUnit.pdf · 0.0 -.25 us-2.026 50.0 9:AOO.30461us-1S17034 100.0 time (us) 150.0 0.0 200.0 Page

1

Storage Unit

4/9/2014

Page 2: Storage Unit - University of Chicagoedg.uchicago.edu/~bogdan/PSEC5/Pres_4_9_14/StorageUnit.pdf · 0.0 -.25 us-2.026 50.0 9:AOO.30461us-1S17034 100.0 time (us) 150.0 0.0 200.0 Page

Storage Unit

Page 3: Storage Unit - University of Chicagoedg.uchicago.edu/~bogdan/PSEC5/Pres_4_9_14/StorageUnit.pdf · 0.0 -.25 us-2.026 50.0 9:AOO.30461us-1S17034 100.0 time (us) 150.0 0.0 200.0 Page

Storage Unit – Charge: 0V to 1V

Vout

Sample

Reset

Vin

Page 4: Storage Unit - University of Chicagoedg.uchicago.edu/~bogdan/PSEC5/Pres_4_9_14/StorageUnit.pdf · 0.0 -.25 us-2.026 50.0 9:AOO.30461us-1S17034 100.0 time (us) 150.0 0.0 200.0 Page

Storage Unit – Discharge in time

“Cap”: 2.8u x 2.8u

Page 5: Storage Unit - University of Chicagoedg.uchicago.edu/~bogdan/PSEC5/Pres_4_9_14/StorageUnit.pdf · 0.0 -.25 us-2.026 50.0 9:AOO.30461us-1S17034 100.0 time (us) 150.0 0.0 200.0 Page

Discharge in time – Changed Sw size

“Cap”: 2.8u x 2.8u

Page 6: Storage Unit - University of Chicagoedg.uchicago.edu/~bogdan/PSEC5/Pres_4_9_14/StorageUnit.pdf · 0.0 -.25 us-2.026 50.0 9:AOO.30461us-1S17034 100.0 time (us) 150.0 0.0 200.0 Page

Discharge in time – Changed Sw size, “Cap” size

“Cap”: 6u x 6u

Page 7: Storage Unit - University of Chicagoedg.uchicago.edu/~bogdan/PSEC5/Pres_4_9_14/StorageUnit.pdf · 0.0 -.25 us-2.026 50.0 9:AOO.30461us-1S17034 100.0 time (us) 150.0 0.0 200.0 Page

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

Page 9: Storage Unit - University of Chicagoedg.uchicago.edu/~bogdan/PSEC5/Pres_4_9_14/StorageUnit.pdf · 0.0 -.25 us-2.026 50.0 9:AOO.30461us-1S17034 100.0 time (us) 150.0 0.0 200.0 Page

Can we still charge it in 10ns?

“Cap”: 6u x 6u

Page 10: Storage Unit - University of Chicagoedg.uchicago.edu/~bogdan/PSEC5/Pres_4_9_14/StorageUnit.pdf · 0.0 -.25 us-2.026 50.0 9:AOO.30461us-1S17034 100.0 time (us) 150.0 0.0 200.0 Page

Can we still charge it in 10ns?

“Cap”: 8u x 8u

Page 11: Storage Unit - University of Chicagoedg.uchicago.edu/~bogdan/PSEC5/Pres_4_9_14/StorageUnit.pdf · 0.0 -.25 us-2.026 50.0 9:AOO.30461us-1S17034 100.0 time (us) 150.0 0.0 200.0 Page

To Do:

- What is the acceptable discharge time;

- Best Switch and “Cap” size for application;

- Include new Storage Cell into PSEC5 Core schematic.