Highlights
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Optimized for SiPM
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Number of channels : 64
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Outputs : 2 outputs per channel (either : 64 LVDS triggers, 2 x 64 TTL triggers, 64 TTL triggers and 64 analog outputs), 2 multiplexed analogue outputs, 3 NOR64 trigger outputs
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Input Polarity : Positive
Overview
Radioroc 2 is a 64-channel front-end ASIC designed to readout silicon photo-multipliers (SiPM).
Radioroc 2 allows triggering down to 1/3 p.e. and provides dual-gain energy measurement with excellent Signal-to-noise ratio on the high gain (SNR over 10 for single p.e.) and large dynamic range on the low gain. Moreover, Radioroc 2 can output the 64-channel triggers with jitter expected as low as 35 ps FWHM on a single p.e. (ASIC only). Photo-counting is foreseen over 100 MHz.
An adjustment of the SiPM high-voltage (gain) is possible using a channel-by-channel 8-bit DAC connected to the ASIC inputs. Channel-by-channel calibration on the trigger threshold is also possible thanks to 6-bit DACs. Radioroc can be calibrated using the dark noise of the SiPM.
Timing resolution better than 35 ps FWHM is possible along with 1% linearity energy measurement up to 2000 p.e, the dynamic range being limited by the 1.2 V power supply on the input analogue pad. The power consumption is 3.3 mW per channel.
For more information, visit the Weeroc website. For customer and technical support on Weeroc ASICs, please contact Weeroc directly using the details provided on their Contact us page.
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Compare
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Image
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Name
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Package
|
No. of Channels
|
Compatible Detectors
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Input Polarity
|
Main Applications
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Time Measurement
|
|
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New TEMPOROC |
BGA516 |
64 |
SIPM, SiPM array |
Negative, Positive |
PHA, ToF, Timing |
TDC |
|
|
Discontinued TRIROC 1A |
TFBGA353 |
64 |
SiPM, SiPM array |
Negative, Positive |
PHA, ToF, Timing |
TDC |
|
|
Discontinued GEMROC 1 |
PQFP160 |
64 |
Micromegas GEMS |
Negative |
PHA, Timing |
Trigger-based |
|
|
Discontinued PETIROC 2A |
TQFP208, TFBGA353 |
32 |
SiPM, SiPM array, RPCs |
Negative, Positive |
PHA, ToF, Timing |
TDC |
|
|
Discontinued CATIROC 1 |
TQFP208 |
16 |
PMT, PMT array |
Negative |
PHA, Timing, Zero suppression |
TDC |
|
|
New PSIROC |
BGA516 |
64 |
PIN diodes, Silicon strips, GEMs |
Negative, Positive |
PHA, Energy mass. |
Trigger-based |
|
|
Discontinued CITIROC 1A |
PQFP160, TFBGA353 |
32 |
SiPM, SiPM array |
Positive |
PHA, Photon Counting |
Trigger-based |
|
|
Discontinued MAROC 3A |
TFBGA353 |
64 |
MA-PMT, PMT, SIPM, SiPM array |
Negative |
PHA, Photon counting |
Trigger-based |
|
|
LIROC |
BGA516 |
64 |
SIPM, SiPM array |
Negative, Positive |
PHA, Photon counting |
Trigger-based |
|
|
New POPROC |
BGA516 |
64 |
MA-PMT, PMT |
Negative |
PHA, Photon counting |
Trigger-based |
|
|
New RADIOROC 2 |
BGA516 |
64 |
SIPM, SiPM array |
Positive |
PHA, Photon counting |
Time and Charge (trigger) |
Technical Specifications
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Detector Read-Out |
SiPM, SiPM array |
|
Signal Polarity |
Positive |
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Sensitivity |
Trigger on first photo-electron |
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Timing Resolution |
Better than 55 ps FWHM on single photo-electron (measured) |
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Dynamic Range |
up to 2000 photo-electron @ 106 SiPM gain – Peaking time from 20ns to 2us for PSD |
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Packaging & Dimension |
FC-BGA 516 20x20mm (Low-inductance flip chip) |
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Power Consumption |
310 mW – supply voltage 1.2V |
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Inputs |
64 analogue inputs with independent SiPM HV adjustments |
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Outputs |
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Internal Programmable Features |
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Evaluation systems |
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