Discontinued

GEMROC 1

Micromegas and GEMs semi digital read out chip

Datasheet
Photo of GEMROC 1

  • Packages: PQFP160

  • Optimized for GEMs, Micromegas

  • Number of channels: 64

  • Outputs: 2 encoded data outputs per channel streamed out in serial, 1 multiplexed charge output, 3 multiplexed trigger outputs or 3 trigger OR of the 64 channels

  • Input Polarity: Negative

GEMROC1 IS DEPRECATED – NOT RECOMMENDED FOR NEW DESIGN Please consider Psiroc for new design

GEMROC is a 64-channel front-end ASIC designed to readout negative fast (<1ns) and short (<10ns) current pulses from low gain detectors (GEMs, Micromegas, …).  GEMROC 1 provides a semi-digital readout with three thresholds tunable from 1 fC to 500 fC and integrates a 128-deep digital memory to store the 2 x 64 discriminator outputs as well as the timestamp from a 24b counter. The three thresholds are set internally by three 10-bit DACs. The gain of each channel can be tuned individually from 0 to 2 over 8 bits, allowing the compensation of non-uniformity between the 64 detector channels. Each channel can auto trigger down to 1 fC input charge. A multiplexed charge measurement up to 500fC is integrated.

The power consumption is 1.5 mW/channel and the chip can be fully power-pulsed allowing a significant power reduction by disabling unused blocks.

Ordering Options

Code Description
WWGEMROC1QAA

GEMROC 1 – Micromegas and GEMs semi digital read out chip – QFP (Quad Flat Pack)

(Discontinued)

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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

    Micromegas, GEM

    Number of Channels

    64

    Signal Polarity

    Negative

    Sensitivity

    Trigger 1 fC

    Timing Resolution

    Not relevant

    Dynamic Range

    500 fC

    Packaging & Dimension

    PQFP160

    Power Consumption

    100mW

    Inputs

    64 current inputs

    Outputs

    • 2 encoded data outputs per channel streamed out in serial

    • 1 multiplexed charge output

    • 3 multiplexed trigger outputs or 3 trigger 0R of the 64 channels

    Internal Programmable Features

    • Trigger threshold adjustment (10bits)

    • 3*64 trigger masks

    • multiplexed latched trigger or direct OR64 trigger outputs

    Evaluation systems

    Evaluation systems