Preliminary LumiCAL FEE SpecificationPresented by Alexander SolinNC PHEPsolin@hep.byFCAL collaboration meeting, February 12-13, 2006,Krakow (INP PAS), Poland

February 12-13, 2006, Krakow A.Solin

ContentsPreliminary LumiCAL FEE SpecificationASICs for FCAL detectors prototypes (main parameters measurement setup, bench and beam tests)

February 12-13, 2006, Krakow A.Solin

Preliminary LumiCAL FEE Specification

February 12-13, 2006, Krakow A.Solin

Estimation of the pad Si-sensor capacitancies

February 12-13, 2006, Krakow A.Solin

295pF/1413 sq. mm

42pF/201 sq. mm

15 deg

15 deg

80 mm

280 mm

280 mm

80 mm

10 pads

22 pads

B

B

98pF/471 sq. mm

137pF/655 sq. mm

Cmax/Cmin=295pF/42pF=7

Rough segmentation parts

Fine segmentation part

Estimation of the strip Si-sensor capacitancies

February 12-13, 2006, Krakow A.Solin

30 deg

80 mm

280 mm

3 deg

80 mm

280 mm

64 concentric strips

120 radial strips

B

B

28pF/133 sq.mm

395pF/1885 sq. mm

For the bonded concentric strips: Cmin=168 pF, Cmax=571 pF

95pF/455 sq.mm

Cmax/Cmin=395pF/28pF=14

The large difference of capacitance is problem for a preamplifier noise optimization.

Estimation of the maximum Si-sensor charge collection(1-1000)MIP channel signal rangefrom B.Pawliks talk

February 12-13, 2006, Krakow A.Solin

1

Cfb=3.2pF

2V

CSP

1000MIP

LumiCal Si-sensor parameters

February 12-13, 2006, Krakow A.Solin

LumiCAL ASIC requirements

February 12-13, 2006, Krakow A.Solin

ASIC technologiesNext four pictures can help to estimate noises of frond end electronics. Calculations are done for Bi-JFET technology (see picture).

Same calculations can be done for other technologies. Preamplifier noises will be similar to the presented calculations.

February 12-13, 2006, Krakow A.Solin

Capacitance of Si-sensor vs its area 572pF28pF

February 12-13, 2006, Krakow A.Solin

ENC vs preamplifier power consumption 8000e

February 12-13, 2006, Krakow A.Solin

ENC vs shaping time8000e

February 12-13, 2006, Krakow A.Solin

ENC vs Si-sensor Capacitance572pF

February 12-13, 2006, Krakow A.Solin

ASICs for FCAL detectors prototypes(main parameters measurement setup, bench and beam tests)

February 12-13, 2006, Krakow A.Solin

Tetrode-BT, Tetrode-JFET ASICs1996 year, CMS ECAL

Two designs CSP were made in Minsk NC PHEP with slightly different circuits for amplifying of signals from Hamamtsu R2149 vacuum phototetrode:TETRODE-BT with bipolar input transistor;TETRODE-JFET with p-JFET input transistor.

February 12-13, 2006, Krakow A.Solin

Design requirements to Tetrode CSPsHamamtsu R2149 parameters:

CSP requirements:

February 12-13, 2006, Krakow A.Solin

CSP based on Tetrode JFETENC=320e+18e/pF, Tp=800ns

February 12-13, 2006, Krakow A.Solin

Wykres2

489.6891712957

326.3275571756

322.145457262

319.8688109209

ENC

Vsupply, V

ENC, e

ENC vs Vsupplies at Cd=0Tetrode JFET based CSP

ENC at Vsupplies=(6-9)V and 0pF

Cd=0

VccENCGainVsVn_stdVn_ICVn_cableQin, fCfC, eClCrTpTmeasure

6489.689171295725.7325.732.122.01595238040.65616250874

7326.327557175627.9527.951.61.45933683570.65616250838

8322.14545726228.128.11.591.44836597590.65616250804122682835

9319.868810920928.328.31.591.44836597590.65616250827

Cd=0

VccENCGainVsVn_stdVn_ICVn_cableQin, fCfC, eCrClTpTmeasure

0318.294210585928.4456.881.591.44836597590.65626250804122682804

11.222558.290952909328.16556.332.62.51588235020.65626250122698820

22.58691.909713481927.8355.663.153.08093557220.65626250122710832

47.881157.576105016627.03554.075.055.00721119990.65626250122741863

82.291806.650397594326.0252.047.557.52144693530.65626250122775897

ENC at Vsupplies=(6-9)V and 0pF

Gain

Vsupply, V

ENC, e

Gain vs Vsupplies at Cd=0

ENC

Vsupply, V

ENC, e

ENC vs Vsupplies at Cd=0Tetrode JFET based CSP

ENC

Cd, pF

ENC, e

ENC vs Cd at Vsupplies=+/-8VTetrode JFET based CSP

Wykres3

318.2942105859

558.2909529093

691.9097134819

1157.5761050166

1806.6503975943

ENC

Cd, pF

ENC, e

ENC vs Cd at Vsupplies=+/-8VTetrode JFET based CSP

ENC at Vsupplies=(6-9)V and 0pF

Cd=0

VccENCGainVsVn_stdVn_ICVn_cableQin, fCfC, eClCrTpTmeasure

6489.689171295725.7325.732.122.01595238040.65616250874

7326.327557175627.9527.951.61.45933683570.65616250838

8322.14545726228.128.11.591.44836597590.65616250804122682835

9319.868810920928.328.31.591.44836597590.65616250827

Cd=0

VccENCGainVsVn_stdVn_ICVn_cableQin, fCfC, eCrClTpTmeasure

0318.294210585928.4456.881.591.44836597590.65626250804122682804

11.222558.290952909328.16556.332.62.51588235020.65626250122698820

22.58691.909713481927.8355.663.153.08093557220.65626250122710832

47.881157.576105016627.03554.075.055.00721119990.65626250122741863

82.291806.650397594326.0252.047.557.52144693530.65626250122775897

ENC at Vsupplies=(6-9)V and 0pF

0

0

0

0

Gain

Vsupply, V

ENC, e

Gain vs Vsupplies at Cd=0

0

0

0

0

ENC

Vsupply, V

ENC, e

ENC vs Vsupplies at Cd=0Tetrode JFET based CSP

0

0

0

0

0

ENC

Cd, pF

ENC, e

ENC vs Cd at Vsupplies=+/-8VTetrode JFET based CSP

AS01PDA, AS01T ASICs2002 year, TESLA THCAL

Next AS01PDA ASIC were designed and manufactured in Minsk NC PHEP for amplifying of signals from photodetectors.The AS01PDA ASIC is a development of the Tetrode BT design line. It additionally contains a shaper and shaper gain control stage.

February 12-13, 2006, Krakow A.Solin

AS01PDA main parameters

February 12-13, 2006, Krakow A.Solin

AS01PDA block diagram

February 12-13, 2006, Krakow A.Solin

Box sizes with text.Hit to start anew line of text.

Preamplifier- Shaper- 50 Ohm Driver

Reference level (Vref)

Gain control(Gain_ctrl)

Signal input (In)

Ct 0.2pF

Test input (In_t)

Positive output (Op)

Negativeoutput(On)

Bias block

AS01PDA testsOctober, 2002 Output signals were digitalized with theTDS3032 scope.

February 12-13, 2006, Krakow A.Solin

AS01PDA noise curvesFebruary, 2006 Noise is measured with the Infiniium 54830B scope.

February 12-13, 2006, Krakow A.Solin

Wykres1

1270.6571341.511445.7471523.6441547.797

1277.2061366.4211468.3321527.2971550.699

1404.081451.1161524.0261587.7111612.332

1723.3331744.3981811.4871844.0821879.057

2068.2422097.6352120.3352130.5222152.839

4100.6024059.523940.5883899.0283884.099

5V

6V

7V

8V

9V

Trend line

Cd, pF

ENC, e

ENC vs Cd and Vcc

ENC = 14,123e/pF + 1000e

6V

CdENCGainVsVn_stdVn_ICVn_cableVn_oscQin, fCfC, e

01169.75304643553.074930.7490.7020.57549978280.4020.334106250

3.5671170.01940097733.074230.7420.7020.57549978280.4020.334106250

6.2261173.94958534233.070430.7040.7030.57671916910.4020.334106250

11.2221201.53360785283.069430.6940.7140.5900779610.4020.334106250

22.581275.59410736783.044130.4410.740.62128576360.4020.334106250

47.881481.84534450583.014430.1440.820.7146999370.4020.334106250

82.291872.76703766072.946129.4610.970.88277743510.4020.334106250

104.622286.46596016362.904329.0431.1361.06249329410.4020.334106250

212.23806.70999729842.627426.2741.651.60027997550.4020.334106250

346.90.4020.334106250

728.30.4020.334106250

1028.70.4020.334106250

0.4020.334106250

6V

0

0

0

0

0

0

0

0

0

ENC

Cd, pF

ENC, e

ENC vs Cd at Vcc=+6V

6V_diff

0

0

0

0

0

0

0

0

0

Gain

Gain

5V_int

CdENCGainVsVn_stdVn_ICVn_cableVn_oscQin, fCfC, e

01385.67106997278.67986.792.011.92419827460.5810.456106250

3.5671416.7133712578.67386.732.051.9659448110.5810.456106250

6.2261419.45853394298.6786.72.0531.96907287830.5810.456106250

11.2221448.91760465668.6686.62.092.0076202330.5810.456106250

22.581544.04289445258.63186.312.212.13226147550.5810.456106250

47.881769.83465652658.56585.652.4942.42538141330.5810.456106250

82.292177.89037341368.41784.172.992.93300852370.5810.456106250

104.622454.5173430648.31383.133.3163.26470442770.5810.456106250

212.23982.17892414597.6976.94.9344.89967294830.5810.456106250

346.90.5810.456106250

728.30.5810.456106250

1028.70.5810.456106250

0.5810.456106250

5V_int

0

0

0

0

0

0

0

0

0

ENC

Cd, pF

ENC, e

ENC vs Cd at Vcc=+6V

5V_diff_no signal

CdENC_5VENC_7VGainVsVn_stdVn_ICVn_cableVn_oscQin, fCfC, e

01050.2905771671118.1266.1861.81.191.03852732270.5810.456106250

6.2261052.50458357251143.1986.16761.671.191.03852732270.5810.456106250

11.2221065.31143666721160.4266.1661.61.21.0499709520.5810.456106250

22.581162.87040333811259.3486.1361.31.281.14054329160.5810.456106250

47.881363.32091414651387.2245.9459.41.421.29570019680.5810.456106250