4-Side Scalable Silicon Photomultiplier Array Contents
Contents
1. Figure 5 Schematic of the method used to combine the differential signals to a single output on the PixOut board ARRAYSB4 EVB PREAMP 16 CHANNEL PREAMPLIFICATION BOARD The ArraySB4 EVB PreAmp board has several functions It independently preamplifies signals from each of the 16 pixels of the ArraySB 4 giving a differential output for each channel It also contains a regulator which is programmed to output the optimal bias voltage for the array Customers may wish to connect the preamplifier to their own system or to use the ArraySB4 EVB PixOut evaluation board The output signals from the preamplifier are available on a 50 way FFC 0 5mm pitch connector The differential nature of the signals ensures low crosstalk allowing this compact connection system to be used The user s own electronics should then have a similar FFC connector and may contain circuitry such as analogue to digital converters and digital signal processing ArraySB 4 Scalable UV Sensitive Silicon Photomultiplier Array S e gt S L USER MANUAL sense light The key features of the ArraySB4 EVB PreAmp electronics are as follows e 16 channel differential preamplifier design based on the AD8132 e Required power supply 3 3V default range from 2 7V to 5V absolute maximum e Differential preamplification output for each pixel with common mode voltage at ground for low crosstalk e Compact preamplification differential output via 50 way FFC flat flexible cable or 802. 3 3V default 400mA maxi mum l ASS ONE V pa to Y g l i AAA IAEA PELE RONN T2 V J1 J FH125 585 8 55H _ aY Figure 12 FFC output connector J1 schematic for the PreAmp board Power Supply Options There are several options for supplying power to the ArraySB 4 and PreAmp board e Supply through the DF17 series board to board connector J4 The connector allows the PreAmp board to plug directly onto SensL s PixOut evaluation board which provides regulated power to this connector e Supply through the 50 way FFC cable from connector J1 The connector allows the PreAmp board to plug into SensL s PixOut evaluation board or customers own circuitry which provides regulated power via the FFC cable e Supply through the Sherlock connector J15 See Table 5 below for connection details ArraySB 4 Scalable UV Sensitive Silicon Photomultiplier Array S e Q S L USER MANUAL sense light Table 5 Power supply connection for the Sherlock connector J15 Supply to Bias Regulator 34V to 40V or direct to the ArraySB 4 see recommended Vop for the particular ArraySB 4 VBIAS_EXT 4 Jumper selection J14 determines how this power is routed to the array see below Sherlock pin 1 position indicated on Figure 6 Jumpers also allow additional options for the power supply as shown in Figure 13 SPMArray4 A0 Pre amplification PCB VBIAS_IN l E J1 FFC Connector J4 Board to Jumper Board Conn
3. R29 R31 R41 R43 R45 R47 R57 R59 R61 and R63 as indicated in Figure 17 This connects the Pout signals to the SMA outputs instead of the Nout ouputs e Note 1 both Nout and Pout jumpers must not be soldered to the board at the same time as their voltages will sum effectively giving zero output e Note 2 solder rework tools are required to change the jumper positions ArraySB 4 Scalable UV Sensitive Silicon Photomultiplier Array S e gt S L USER MANUAL R1 R3 R5 AZ Wha i AA i NP HA ui genna a R OR 0805 1 8H R OR 080S 17 H R R 0885 1 8W R ER 0805 1 8 200 Big or i ry ur gt sa PUN MW gt P gt gt R17 R19 R21 R23 hie a n ASDA NARA x AMMA AN me x AAA A aha gt n R R 0805 1 80 R BR 88905 1 8W R 8R 8885 1 8W R OR 8806 1 h e p _ R33 R35 R37 R33 A gp ee ge Pr Soe a geo aos reget i pn u pee R GR 6805 1 80I R GR 6805 1 80 R GR 0885 1 80 R_ER _0805 1 8 NY R49 R51 R53 R55 A fl A VhA a VA VV AA VI NM R 8R 9805 1 8L R OR 0805 1 8U R OR 0805 1 8U R 2R 0305 1 8 YA CoA 3 Sr 23 IL La YI spmarray_v4_eval_revip PSA a aldo y 134 p49 EJ haa t n se 2 j GN LH DI wee caca Figure 16 Positions of the jumpers for default configuration on ArraySB4 EVB PixOut PCB sense light ArraySB 4 Scalable UV Sensitive Silicon Photomultiplier Array S e o S L sense light USER MANUAL g la 17 he ET ui ini ea DAA
4. way board to board connector e Power input via the FFC 4 way Sherlock connector or board to board connector e Read back monitor of programmed bias voltage on FFC and board to board connector e Negative Input bias supply 34V to 40V 50mA maximum supply which is stepped down and regulated on the PreAmp board to bias the pixels e Power supply select jumpers Jumper to bypass preamplifier bias regulator and to apply direct bias to the ArraySB 4 from e g a bench supply See test sheet for recommended bias voltage Jumper allows the regulator to be supplied from the either the board to board connector FPC connector or the Sherlock connector e Board to board 80 way 0 5mm pitch connector for plugging into the ArraySB4 EVB PixOut evaluation board which allows access to each signal via SMA individually or the sum of all 16 pixel signals to simulate a large area sensor _ O o O e casas RRA n EPA o O Os o oO o gt 7 Jx gt ee af defi ae ae e ee 0 CR ae KA GEES hr pis ok w ST o 136 JA SE aaa TIZIANA api ben kojom 1 0 i e dl 1 o o I i de o gt o EQ 6 S SS ess pS His HS NS BI E E E kink imi i E 00 n 174 o I 1474 TOP SIDE VIEW DIMENSIONS IN MM SHERLOCK CONNECTOR J15 PN 1 CENTRE OF HEADER J9 pma PIN 1 HEADER J4 mz PIN 18 PIN 1 OF SPMARRAYS 42 2 j PIN 4 HEADER J18 47 4 I CENTRE OF J3 PAD een 15 N oro 3 ante Bacio ows in Fe Pm se CENTRE or Ji
5. ArraySB 4 Scalable UV Sensitive Silicon Photomultiplier Array S e Q S L USER MANUAL Lo sense light 4 Side Scalable Silicon Photomultiplier Array SensL s B Series silicon uses a P on N process to give outstanding PDE with sensitivity that extends into the UV The ArraySB 4 incorporates this technology into a 16 pixel Silicon Photomultipler ArraySB It is based upon a 4x4 arrangement of 8mm SIPM pixels which are mounted in a low profile ceramic package The ArraySB 4 permits close packing on all four sides allowing for a detection area that can be as large or small as required by the specific application It is the first commercially available sensor of its kind and will be of particular interest to developers of imaging systems for PET gamma cameras nuclear hazard and threat detection and fluorescence measurements This User Manual summarizes the technical information relating to the ArraySB 4 sensor and its supporting electronics and describes their performance and use Contents ArraySB 4 e OA o ennan nnmnnn nenna nenn n nnmnnn nnen 2 GORDO nn So 2 Unpacking the Systemmana Preparation tor USE uestasaa ista 2 Handling and Use ConsideratioNS ii 3 CIES A NSS SU SOL ani 3 Anayo B 4 OCC INC AION PI qq A E SE sees a a a N E 4 PETR DEFAN EO AMOS eie eosin a mnt E ia EEN 5 SPC rain 6 EHE cai 6 PAV b ECC ONS adire 7 ArraySB4 EVB PixOut Evaluation board for ArraySB 4 Pixel SUMMEC OUtputs Y ArraySB4 EV
6. B 4 for pixellated or summed signal output with power supply e Array Opt PGA20P optional 20 pin straight terminal SMT socket Note Unpack the contents carefully and identify each of the components Normal ESD aware handling protocols should be observed ArraySB 4 Scalable UV Sensitive Silicon Photomultiplier Array S e o S L USER MANUAL sense light kane j 1 z ef s LI wey gt e a i Baraan pera EA he rd e JE mt 7 Figure 1 The complete Array4 product range showing sensor Preamp board and the PixOut board HANDLING AND USE CONSIDERATIONS e The module is not intended for outdoor use e l a preamp board is provided with a given sensor it is not recommended that the user separate them The preamp board will have had its bias setting precisely optimized based on that sensor s breakdown Therefore if the preamp board is used with other sensors optimum performance cannot be guaranteed e The sensor and electronics should be kept away from liquids which if spilled on them could cause failure e Apply only the correct supply voltages and observe correct polarity Operational voltage is NEGATIVE relative to the ground rail For example if an operating voltage of 27V is required then the voltage applied to V a should be 27V e Do not expose the sensor to extended periods of ambient light with biased applied To do so may cause failure of the device through excessive current draw e For optica
7. B PreAmp 16 Channel Preamplification board errn rrtt rnnr rn erre rrn urrunen erru rrre rrur rre rene rd Setting Up the ArraySB 4 amp Electronics BoardS iiiii 15 eo AA AP nn AA 16 MS o a A A e A 16 e e PO o E e PO 0 E E 17 gan E EVE PRA OOPS PUE O O REE ERE E RE E E A 18 APPS 19 setting signal Output Polar on the Aray oB4 EVB PIKOUT is iis 19 ArraySB 4 Scalable UV Sensitive Silicon Photomultiplier Array S e Q S L USER MANUAL sense light ArraySB 4 Product Overview SensL s Position Sensitive Multi Anode Silicon Photomultiplier Array ArraySB 4 is a large area sensor based on silicon photomultiplier technology The 16 pixel ArraySB 4 is mounted onto a low profile ceramic package which allows 4 side tiling to allow ArraySB 4 to be scaled for larger area detection systems A non magnetic sensitive package has been developed using Ni free processing and materials with low magnetic susceptibility A 20 pin grid array PGA footprint is employed for electrical I O to a printed circuit board or to a standard test socket connector The pixel array is over molded with epoxy to completely encapsulate the pixels bond wires and substrate bond pads The pixel bias and readout configuration has been designed for both differential and single channel readout electronics The performance and specification characteristics of each pixel are the same as SensL s MicroSB 30035 products the B Series d
8. C Cable Output Interface A 50 way 0 5mm pitch FH12 series FFC connector is used to interface the PreAmp board to the PixOut evaluation board or the customer s own electronics Figure 12 shows the schematic of the FFC connector on the PreAmp board Customers designing their own electronics to connect to the preamplifier FFC output should note that connections may need to be mirrored compared to the above schematic http www hirose co jp cataloge_hp e58605370 padf Hirose part number FH12S 50S 0 5SH 55 DigiKey Part Number HFA150CT ND Table 4 FFC output connector pin descriptions Pin Number Description 3 Inverting differential outputs for channel 1 4 Non inverting differential outputs for channel 1 Inverting differential outputs for channel 2 Non inverting differential outputs for channel 2 Inverting differential outputs for channel 3 Non inverting differential outputs for channel 3 Inverting differential outputs for channel 4 Non inverting differential outputs for channel 4 Inverting differential outputs for channel 5 Non inverting differential outputs for channel 5 Inverting differential outputs for channel 6 Non inverting differential outputs for channel 6 21 Inverting differential outputs for channel 7 22 Non inverting differential outputs for channel 7 24 Inverting differential outputs for channel 8 25 Non inverting differential outputs for channel 8 27 Inverting differential outputs for channel 9 28 Non inverting differentia
9. HL spmarray_v4_eval_rev1p0 SensL 2009 RKA 4 a o y er A Ml A j 0 4 fi 44 Bs EX pt 9 gt 2 veins PSTN IRS WAM n f Figure 17 Alternative jumper positions for negative output pulses are highlighted www sensl com sales sensl com S gt l S E 353 21 240 7110 International 1 650 641 3278 North America sense light All specifications are subject to change without notice
10. L sense light ARRAYSB4 EVB PIXOUT 0000 0000 0000 000020 aooo 0000 0000 0000 D 0 gd 00 UU O mu 123 7 118 8 ArraySB 4 Scalable UV Sensitive Silicon Photomultiplier Array S e o S L USER MANUAL sense light Appendix A SETTING SIGNAL OUTPUT POLARITY ON THE ARRAYSB4 EVB PIXOUT The ArraySB4 EVB PreAmp 16 channel preamplifier board for the ArraySB 4 is based on the AD8132 preamp and a single channel of the board is shown in Figure 14 The amplifier has two output signals per channel e Nout this produces a positive going output pulse Pout this produces a negative going output pulse Figure 14 Single preamplification channel of the ArraySB4 EVB PreAmp Both the Nout and Pout signals are connected to the ArraySB4 EVB PixOut evaluation PCB By default the 16 output SMAs are connected to the Nout outputs of each channel to give positive output pulses This is achieved by inserting zero ohm 0805 package size jumpers in the R1 R3 R5 R7 R17 R19 R21 R23 R33 R35 R37 R39 R49 R51 R53 and R55 positions of the ArraySB4 EVB PixOut board The default configuration circuit of resistors is shown in Figure 15 The positions of the jumpers for the default configuration on the ArraySB4 EVB PixOut board are highlighted in Figure 16 If negative output pulses are required then the jumpers must be moved from the default positions to positions R9 R11 R13 R15 R25 R27
11. PAD ROW PIN 4 ni Figure 6 Top and bottom views of the preamplification board ArraySB 4 Scalable UV Sensitive Silicon Photomultiplier Array S e o S L USER MANUAL sense light Differential Preamplification The 16 channel PreAmp board uses fast charge sensitive integrating differential output preamplifiers The preamplifiers are implemented using Analog Device s AD8132 chips Differential signals allow the use of a compact FFC cable reducing channel to channel crosstalk and sensitivity to ground potential variations across the system compared with a single ended amplification system I tal 4H U1 U AD8132ARM C2 1BBnF Ci 4 7pF IND 1K 470 k Ci 472 GND 2 a ia gt gt GND Figure 7 Single channel preamplification schematic The preamplifier for each of the 16 channels is configured in transimpedance mode as shown in Figure 7 The gain is defined by R1 while C1 and R4 provide stability ringing suppression of the transient response Resistors R2 and R3 provide matching of the low output impedance of the preamplifier to the transmission line impedance thus providing reflection free operation Snapshots of the signals observed on the output of the preamplifier are shown in Figure 8 to Figure 11 The signal shape rise and fall time is primarily defined by the internal SIPM RC type time constant At current gain settings defined by R1 and C1 feedback elements the preamplifier outp
12. a2ro oral Pax Effecive Area 184x184 me Number of Mierocels 4774 Pera Detailed Specifications of Pixel Anax 420nm VBr 2 5V and 21 C Typical per pixel VBr 2 5V and 21 C ros See B Series Datasheet Table 2 ArraySB 4 Module Specifications Part Number Parameter Units Comments ArraySB 4 30035 CER Pixel to Pixel Spacing Deadspace See Schematics for layout ceramic Cole TOSS Oeramio Base so m ppo Electrical VOS Cu Pin Grid Array PON __ SeeSchomatios Ceramic Package Height 1 Includes ceramic base thickness Al203 frame which surrounds tiled array Standard pin spacing sockets see www e tec co uk Part No PSC 520 E1 18 95 I Epoxy Thickness Thickness coated over the surface of the die Epoxy Refractive Index toole Measured at 589nm Transmission Epoxy Encapsulate Epotek 301 2 1000 0 0 5 u 27 8 ArraySB 4 Scalable UV Sensitive Silicon Photomultiplier Array S e gt S L USER MANUAL sense light PIXEL MAP amp PIN LOCATIONS 15 81 ArraySB 4 Scalable UV Sensitive Silicon Photomultiplier Array S e Q S L USER MANUAL sense light Figure 3 Bottom pin side and side views of the ArraySB 4 sensor package showing pin layout and naming SENSOR CONNECTIONS Table 3 details the ArraySB 4 package connections which should be used in conjunction with the pin locations shown in Figure 3 and pixel layout shown in Figure 2 The bias needs to be applied to 4 i
13. atasheet can be found on the website The device is sensitive to visible light in the range of 300nm to 800nm and suited to applications requiring direct light detection or for radiation detection via scintillators The ArraySB 4 package is designed in such a way that multiple arrays can be tiled together This allows NxM arrays to be seamlessly assembled into a larger area detection plane Whether the application requires a 1D array for spectrometry or a 2D array for large area detection with position sensitivity the ArraySB 4 is a novel sensor solution and the ideal replacement for MCPs Multi Anode PMTs APDs and existing discrete SIPM products e 16 4 x 4 elements of 8mm pixels e High pixel to pixel output uniformity uniformity ratio lt 1 1 5 e Low external package deadspace allowing for NxM configurations e High gain 10 pixel e Low bias voltage operation lt 30V e Compact footprint interface electronics with form factor matched to ArraySB 4 width for tilling e Multi channel differential preamplification and convenient power supply Pixellated or Summed output via interface electronics Getting Started UNPACKING THE SYSTEM AND PREPARATION FOR USE Contents of the Package e ArraySB 4 Sensor Module 4X4 element array of 83mm SiPMs type MicroSB 30035 mounted in 20 pin ceramic package e ArraySB4 EVB PreAmp optional 16 channel preamplifier board for ArraySB 4 e ArraySB4 EVB PixOut optional Evaluation board for ArrayS
14. ector SPMArray4 J15 Sherlock VBIAS_EXT Figure 13 Schematic for bias supply configuration options Jumper J10 has the following options e Short pins 1 amp 2 to feed the Bias Regulator input VBIAS_REG_IN with VBIAS_IN from board to board connector J4 or FFC connector J1 DEFAULT SETTINGS Note this option should always be used when supplying power from the PixOut evaluation board e Short pins 2 amp 8 to feed the Bias Regulator input VBIAS_REG_IN with VBIAS_EXT from Sherlock connector J15 Jumper J14 allows the following options e Short pins 1 amp 2 to supply the ArraySB 4 bias voltage VBIAS_SEL from the Bias Regulator output VBIAS_REG_OUT DEFAULT SETTINGS e Short pins 2 amp 3 to supply the ArraySB 4 bias voltage VBIAS_SEL directly from VBIAS_EXT on the Sherlock connector J15 bypassing the preamplifiers Bias Regulator circuit ArraySB 4 Scalable UV Sensitive Silicon Photomultiplier Array S e Q S L USER MANUAL sense light Setting Up the ArraySB 4 amp Electronics Boards The fastest way to evaluate the ArraySB 4 and PreAmp board is through the use of the PixOut evaluation and power supply board The system setup is shown in Figure 1 The PreAmp board plugs directly onto the PixOut board using an 80 way DF17 series board to board connection system The 80 way connector supplies power for the step down bias regulator and the amplifier chips on the PreAmp board The output signals are routed to SMA coaxial connect
15. ed to bright light conditions The sensor is designed measure in low light conditions and exposure to bright light may lead to issues with the package overheating 5 Apply power either directly to the ArraySB 4 using bench supplies on the Sherlock Connector J15 or through the FFC cable via the customer interface electronics Note it is recommended to apply the 3 3V supply before the sensor bias supply and switch off the bias supply first when powering down 6 The ArraySB 4 is now ready to use ArraySB 4 Scalable UV Sensitive Silicon Photomultiplier Array S e gt S L USER MANUAL sense light Schematics ARRAYSB 4 SENSOR 15 31 ou _ Do 14 31 10 _ 15 31 lo i 10 16 a N E P14 P16 P18 P20 SSS KOKOKOKOKO ave N P13 PIS P17 P19 i 5 o o E NIS ZS de om N L a 2 67 01 I 3 37 one I O l vari B 15 81 fi uk 090 070 00 1 ArraySB 4 Scalable UV Sensitive Silicon Photomultiplier Array S e gt S L USER MANUAL sense light ARRAYSB4 EVB PREAMP DNDOOOOOOOOOOOOOOOOOOOOOO0O0O0000000 DOO0O0O0O0O0O0O00C0O00O0O0O00O0CcO00cO00O00c000000O 00 00 00 00 OO 00 00 00 00 00 00 00 OO OO OO OO 0 o o 15 3 O DO a 0 2 ArraySB 4 Scalable UV Sensitive Silicon Photomultiplier Array S e gt S L USER MANUA
16. ixOut board by inserting the jack connector 6 The ArraySB 4 is now ready to use In the case where the customer wishes to design their own back end electronics to connect to the preamplifier power should be provided to either the FFC cable or the Sherlock Connector J15 to run the preamplifier module and the bias regulator The use of impedance matched differential signal receivers is recommended especially if using cables of length in excess of one meter between the preamplifier and the user interface electronics Alternatively the customer may wish to supply power from external regulated bench supplies This gives the advantage of being able to directly control the bias to adjust the gain and the preamplifier supply to adjust the dynamic range of the sensor array The procedure for set up in this case is as follows 1 Connect the ArraySB 4 to the socket on the PreAmp board Take normal ESD precautions when handling the sensors and electronics and use rubber gloves when inserting the array Apply pressure firmly and equally over the surface of the ArraySB 4 when inserting into the socket taking care not to put extra force on any particular pin as the pins are formed from soft copper material 2 Connect the 50 way FFC cable between the PreAmp board and the user s interface electronics 3 Decide on the method of power supply and arrange the jumpers on the PreAmp board as described in the previous section 4 Ensure the ArraySB 4 is not expos
17. l coupling bonding directly to the clear epoxy surface is not recommended Optical surfaces should be held in place mechanically and optical coupling optimised using refractive index matching gel e These devices are ESD sensitive The following precautions are recommended A e Ensure that personal grounding environmental controls and work surfaces are compliant with recommendations in JESD625 e Ensure that all personnel handling these devices are trained according to the recommendations in JESD625 e Devices must be placed in an ESD approved carrier during transport through an uncontrolled area TECHNICAL ISSUES AND SUPPORT In the event of defects in material or workmanship or a failure to meet specifications promptly notify your local sales agent They can advise whether it will be necessary to contact SensL directly To contact SensL directly email supportOsensl com or call the phone numbers at the end of this document Supporting documentation including datasheets and technical notes can be found on the website www sensl com ArraySB 4 Scalable UV Sensitive Silicon Photomultiplier Array S e gt S L USER MANUAL sense light ArraySB 4 Specifications Table 1 ArraySB 4 Sensor Specifications Part Number 7 Parameter Units Test Conditions ArraySB 4 30035 CER Pixel Chip Area S10 X a6 Pixel Active Area 3 00 x 3 00 3 16 0 01mm to account for scribe cut of die kerf Operating Voltage Range a moonen sio avez an
18. l outputs for channel 9 30 Inverting differential outputs for channel 10 31 Non inverting differential outputs for channel 10 39 Inverting differential outputs for channel 11 34 Non inverting differential outputs for channel 11 36 Inverting differential outputs for channel 12 of Non inverting differential outputs for channel 12 39 Inverting differential outputs for channel 13 40 Non inverting differential outputs for channel 13 42 Inverting differential outputs for channel 14 43 Non inverting differential outputs for channel 14 45 Inverting differential outputs for channel 15 46 Non inverting differential outputs for channel 15 48 Inverting differential outputs for channel 16 49 Non inverting differential outputs for channel 16 T ME Pin Name NOUTO1 POUTO1 NOUTO2 POUTO2 NOUTOS POUTOS NOUTO4 POUTO4 NOUTO5 POUTO5 NOUTO6 POUTO6 NOUTO7 POUTO7 NOUTO8 POUTO8 NOUTO9 POUTO9 NOUT10 POUT10 NOUT11 POUT11 NOUT12 POUT12 NOUT13 POUT13 NOUT14 POUT14 NOUT15 POUT1S NOUT16 POUT16 ajos O O DO OI OI NTO Input bias voltage to the regulator range 34V to 40V VBIAS_IN 100mA maximum ArraySB 4 Scalable UV Sensitive Silicon Photomultiplier Array S e o S L USER MANUAL sense light vonvsas 5 17 29 41 11 23 35 Negative supply voltage 3 3V default 400mA maximum ie ty eee Ground power supply pins 38 44 47 50 p PPYP Monitor of voltage bias output from the regulator Positive supply voltage
19. ndividual pins Each pin supplies the bias to the daisy chained cathode connections of the 4 pixels in a particular row of the array as shown in Figure 2 The signal connections from the back side anode contacts of the array are individually routed to the remaining 16 pins of the package Figure 4 shows the circuit diagram of the ArraySB 4 and in conjunction with Table 3 can be used to see which pins are connected to which bias Table 3 Description of signals on the ArraySB 4 package car Cethode signal connection for Cel ce Cate signal connection for Call A ta Bias votage connection to anodes of Call Call CAKE Cal ei Caney Cathode signal connection for Cel 6 Celi Cathode signal connection for Cait Hv2 HV3 al a 9 CELLM N HVi 2__CELLA N 18 CELLB N 19 CELLC N 20 CELLD N 3 CELLE N S CELLF N 16__CELLG N 17 _GELLH N 6__CELLI N 8__CELLJ N 14__CELLK N 15__GELLLI N 13 __CELLN N 11 _CELLO N 12__GELLP N Figure 4 Circuit diagram of the ArraySB 4 ARRAYSB 4 SENSOR BIAS The array is designed for negative bias operation The typical breakdown voltage and operational range for the device is stated in Table 1 Please ensure that the operation voltage is NEGATIVE relative to the ground rail For example if the operating voltage Vo is 27V then the ArraySB 4 Scalable UV Sensitive Silicon Photomultiplier Array S e o S L USER MANUAL sense light voltage applied to Vbias
20. ors on the PixOut board also via the 80 way connector The PixOut board also provides a summed output for all pixels A universal AC adapter provides 6V DC power to the PixOut board This is regulated to provide 3 3V for the preamplifier chips and 34V for the input to the bias regulator The procedure for setup is 1 Connect the ArraySB 4 to the socket on the PreAmp board Take normal ESD precautions when handling the sensors and electronics and use rubber gloves when inserting the array Apply pressure firmly and equally over the surface of the ArraySB 4 when inserting into the socket taking care not to put extra force on any particular pin as the pins are formed from soft copper material 2 Plug the PreAmp board into the PixOut evaluation board using the 80 way DF17 series board to board connection system The board should line up as shown in Figure 1 such that stand offs can be used to secure the preamplifier in place Do not attempt to insert at 180 degrees rotation 3 Connect measuring monitoring equipment e g oscilloscope to the SMA outputs of the evaluation board 4 Ensure the ArraySB 4 is not exposed to bright light conditions The sensor is designed measure in low light conditions and exposure to bright light may lead to issues with the package overheating or bias voltage dropout due to the high current loading 5 Plug the AC mains adapter into the mains socket and then apply the 6V DC power output of the mains adapter to the P
21. should be 27V Table 3 details the bias connections required The pixel and pin layout are shown in Figure 2 amp Figure 3 respectively ArraySB 4 Electronics The ArraySB 4 sensor is offered with the option of custom supporting electronics a 16 channel preamplification board ArraySB4 EVB PreAmp and an evaluation board for pixellated summed pixel output via SMA connector ArraySB4 EVB PixOut ARRAYSB4 EVB PIXOUT EVALUATION BOARD FOR ARRAYSB 4 PIXEL SUMMED OUTPUTS The key features and benefits of the ArraySB4 EVB PixOut evaluation board are as follows e Allows fast evaluation of ArraySB 4 and ArraySB4 EVB PreAmp board e 16 individual SMA sockets for monitoring the pixel signal on an oscilloscope for example The differential signals from the PreAmp board are combined into a single output on the PixOut board as shown in Figure 5 e Additional summed pixel output on a SMA connector e Board to board 80 way 0 5mm pitch connector for plugging into the PreAmp board differential output signals power supply bias supply stepped down bias monitor SPI interface e 6V DC power supply provided by a universal AC adapter e On board regulation to provide 3 3V preamplifier supply e On board switching regulator to provide 36V input to the step down regulator on the PreAmp board e FFC connector should remote positioning of the evaluation board from the PreAmp board be required e g for environments where there are strong magnetic fields
22. ut saturates prior to SIPM saturation on the output Each board has been factory programmed to the optimum bias voltage ArraySB 4 Scalable UV Sensitive Silicon Photomultiplier Array sens L USER MANUAL sense light File Control Setup Measure Analyze Utilities Help 2 14 PM Acquisition is stopped 4 00 GSa s 64 0 kpts ole ale 500 ns Figure 8 SIPM dark noise viewed from the differential preamplifier using 1MQ 14pF probes File Control Setup Measure Analyze Utilities Help 2 06 PM Acquisition is stopped H ENE 4 00 GSass 64 0 kpts F4 ole FIS 50 0 ns 221 3550 ns Figure 9 Short 12nSec blue LED pulse seen at the output of the differential preamplifier using 1M 14pF oscilloscope probes ArraySB 4 Scalable UV Sensitive Silicon Photomultiplier Array sens L USER MANUAL sense light File Control Setup Measure Analyze Acquisition is stopped 4 00 6 afs 64 0 kpts Utilities Help 2 10 PM 221 3990 ns Figure 10 Saturation of the preamplifier by a large SIPM signal when using 5V power using 1MQ 14pF oscilloscope probes File Control Setup Measure Analyze Utilities Help 2 04 PM Acquisition is stopped 4 00 GSa s 64 0 kpts H ENE olo 24 DES Figure 11 Saturation of the preamplifier by a large SIPM signal when using 2 7V power using 1MQ 14pF oscilloscope probe ArraySB 4 Scalable UV Sensitive Silicon Photomultiplier Array S e Q S L USER MANUAL sense light Preamplification Board FF
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