RPC and gaseous detector semi digital read out chip
HARDROC 3B is a 64-channel front-end ASIC designed to readout negative fast (<1ns) and short (<10ns) current pulses from various detectors (Resistive Plate Chambers, Multi Anode Photo Multipliers, …). HARDROC 3B provides a semi-digital readout with three thresholds tunable between 10 fC up to 10 pC and integrates a 8-depth digital memory per channel to store the 2 encoded outputs of the 3 discriminators upon channel trigger. The three thresholds are set by three integrated 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 is trigger-wise independent and can auto-trigger on signal down to 10 fC. A multiplexed charge measurement allows linear analogue measurement up to 30pC.
The power consumption is 2.5 mW/channel and the chip can be fully power-pulsed allowing a significant power reduction by disabling unused blocks.
- Detector Read-Out
- Number of Channels
- Signal Polarity
Trigger on 10 fC with 100% efficiency
- Timing Resolution
Time stamping 200ns
Range 30 pC
- Packaging & Dimension
- Power Consumption
2.5 mW /ch, power supply: 3.3V
64 current inputs
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
gain adjustment between 0 and 2 over 8 bits for each input preamp, trigger threshold
adjustment (10bits), 3*64 trigger masks, I2C programmable
Compare with Weeroc chip.
|WWHARDROC3BQ||HARDROC 3B - RPC and gaseous detector semi digital read out chip - QFP (Quad Flat Pack)|