3 Years Warranty
GEMROC
Micromegas and GEMs semi digital read out chip
Features
- 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
Overview
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.
Technical Specifications
- Detector Read-Out
Micromegas, GEM
- Number of Channels
64
- Signal Polarity
Negative
- Sensitivity
Trigger 1 fC
- Timing Resolution
Time stamping 200ns
- Dynamic Range
500 fC
- Packaging & Dimension
TQFP160
- 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
Compare
Compare with Weeroc chip.
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Ordering Options
| Code | Description |
|---|---|
| WWGEMROC1QAA | GEMROC 1 - Micromegas and GEMs semi digital read out chip - QFP (Quad Flat Pack) |
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