28 September 2015 to 2 October 2015
Lisbon
Europe/Zurich timezone

High speed readout solution for single-pixel-photon counting ASICs

30 Sep 2015, 16:31
1m
Hall of Civil Engineering (Lisbon)

Hall of Civil Engineering

Lisbon

IST (Instituto Superior Técnico ) Alameda Campus Av. Rovisco Pais, 1 1049-001 Lisboa Portugal
Poster ASICs Poster

Speaker

Robert Szczygiel (AGH University of Science and Technology)

Description

We present a flexible, high speed readout system for the high-frame-rate photon-counting ASICs. The solution was implemented in an ASIC with 128 x 256 pixel matrix with dual 14-bit counter pixels, in 130 nm CMOS technology. In the presentation the details of the architecture and the test results will be shown. Currently the ASIC runs stable with 200 MHz input clock, while the tests with 500 MHz clock frequency and DDR mode are ongoing.

Summary

The bottleneck in high-frame-rate photon-counting ASICs is the readout system, which has to stream out of the chip substantial data volumes. For example, for the 128 x 256 pixel matrix with 14-bit counters a single frame size is 448 kbits, so to get the constant frame rate of 10 000 frames/s one needs a data link of 4.48 Gbps (not counting the protocol overhead). The concurrent requirement is keeping the power consumption low and limitation of the crosstalk to the analog part of each pixel.

We present a flexible solution for a readout system complementing the requirements given above. The solution was implemented in an ASIC with 128 x 256 pixel matrix with dual 14-bit counter pixels, in 130 nm CMOS technology. In the presentation the details of the architecture and the test results will be shown. Currently the ASIC runs stable with 200 MHz input clock, while the tests with 500 MHz clock frequency and DDR mode are ongoing.

Primary author

Robert Szczygiel (AGH University of Science and Technology)

Co-authors

Pawel Grybos (AGH University of Science and Technology) Dr Piotr Kmon (AGH University of Science and Technology) Piotr Maj (AGH University of Science and Technology)

Presentation Materials

There are no materials yet.