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RADIOROC 2

Multi-purpose SiPM analogue read-out chip

Datasheet
Photo of RADIOROC 2

  • Optimized for SiPM

  • Number of channels : 64

  • 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

  • Input Polarity : Positive

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.

Ordering Options

Code Description
WWRADIO2BAAA

RADIOROC 2 Dual Read-Out (Photon Counting & Charge Integration) Multi-Purpose SiPM Analogue Chip

 RoHS

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    Image
    Name
    Package
    No. of Channels
    Compatible Detectors
    Input Polarity
    Main Applications
    Time Measurement
    TRIROC 1A
    Discontinued

    TRIROC 1A

    TFBGA353

    64

    SiPM, SiPM array

    Negative, Positive

    PHA, ToF, Timing

    TDC

    GEMROC 1
    Discontinued

    GEMROC 1

    PQFP160

    64

    Micromegas GEMS

    Negative

    PHA, Timing

    Trigger-based

    PETIROC 2A
    Discontinued

    PETIROC 2A

    TQFP208, TFBGA353

    32

    SiPM, SiPM array, RPCs

    Negative, Positive

    PHA, ToF, Timing

    TDC

    CATIROC 1
    Discontinued

    CATIROC 1

    TQFP208

    16

    PMT, PMT array

    Negative

    PHA, Timing, Zero suppression

    TDC

    PSIROC
    New

    PSIROC

    BGA516

    64

    PIN diodes, Silicon strips, GEMs

    Negative, Positive

    PHA, Energy mass.

    Trigger-based

    CITIROC 1A
    Discontinued

    CITIROC 1A

    PQFP160, TFBGA353

    32

    SiPM, SiPM array

    Positive

    PHA, Photon Counting

    Trigger-based

    MAROC 3A
    Discontinued

    MAROC 3A

    TFBGA353

    64

    MA-PMT, PMT, SIPM, SiPM array

    Negative

    PHA, Photon counting

    Trigger-based

    LIROC 1
    New

    LIROC 1

    BGA516

    64

    SIPM, SiPM array

    Negative, Positive

    PHA, Photon counting

    Trigger-based

    POPROC

    POPROC

    BGA516

    64

    MA-PMT, PMT

    Negative

    PHA, Photon counting

    Trigger-based

    RADIOROC 2
    Coming Soon

    RADIOROC 2

    BGA516

    64

    SIPM, SiPM array

    Positive

    PHA, Photon counting

    Time and Charge (trigger)

    Technical Specifications

    Close

    Detector Read-Out

    SiPM, SiPM array

    Signal Polarity

    Positive

    Sensitivity

    Trigger on first photo-electron

    Timing Resolution

    Better than 55 ps FWHM on single photo-electron (measured)

    Dynamic Range

    up to 2000 photo-electron @ 106 SiPM gain – Peaking time from 20ns to 2us for PSD

    Packaging & Dimension

    FC-BGA 516 20x20mm (Low-inductance flip chip)

    Power Consumption

    310 mW  – supply voltage 1.2V

    Inputs

    64 analogue inputs with independent SiPM HV adjustments

    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

    Internal Programmable Features

    • 64 HV adjustment for SiPM (64 x 8 bits)

    • 3 trigger threshold tuning (10bits)

    • Channel-by-channel gain and shaping time adjustment (τ = 20 ns to 300 ns)

    • Individual trigger masking and cell powering

    Evaluation systems

    • Evaluation board : Available

    • Radioroc + PicoTDC evaluation system : Available April 2024