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Proceedings Paper

Controller and data acquisition system for SIDECAR ASIC driven HAWAII detectors
Author(s): Anamparambu Ramaprakash; Mahesh Burse; Pravin Chordia; Kalpesh Chillal; Abhay Kohok; Vilas Mestry; Sujit Punnadi; Sakya Sinha
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Paper Abstract

SIDECAR is an Application Specific Integrated Circuit (ASIC), which can be used for control and data acquisition from near-IR HAWAII detectors offered by Teledyne Imaging Sensors (TIS), USA. The standard interfaces provided by Teledyne are COM API and socket servers running under MS Windows platform. These interfaces communicate to the ASIC (and the detector) through an intermediate card called JWST ASIC Drive Electronics (JADE2). As part of an ongoing programme of several years, for developing astronomical focal plane array (CCDs, CMOS and Hybrid) controllers and data acquisition systems (CDAQs), IUCAA is currently developing the next generation controllers employing Virtex-5 family FPGA devices. We present here the capabilities which are built into these new CDAQs for handling HAWAII detectors. In our system, the computer which hosts the application programme, user interface and device drivers runs on a Linux platform. It communicates through a hot-pluggable USB interface (with an optional optical fibre extender) to the FPGA-based card which replaces the JADE2. The FPGA board in turn, controls the SIDECAR ASIC and through it a HAWAII-2RG detector, both of which are located in a cryogenic test Dewar set up which is liquid nitrogen cooled. The system can acquire data over 1, 4, or 32 readout channels, with or without binning, at different speeds, can define sub-regions for readout, offers various readout schemes like Fowler sampling, up-theramp etc. In this paper, we present the performance results obtained from a prototype system.

Paper Details

Date Published: 19 July 2010
PDF: 8 pages
Proc. SPIE 7742, High Energy, Optical, and Infrared Detectors for Astronomy IV, 77422I (19 July 2010); doi: 10.1117/12.858455
Show Author Affiliations
Anamparambu Ramaprakash, Inter-Univ. Ctr. for Astronomy and Astrophysics (India)
Mahesh Burse, Inter-Univ. Ctr. for Astronomy and Astrophysics (India)
Pravin Chordia, Inter-Univ. Ctr. for Astronomy and Astrophysics (India)
Kalpesh Chillal, Inter-Univ. Ctr. for Astronomy and Astrophysics (India)
Abhay Kohok, Inter-Univ. Ctr. for Astronomy and Astrophysics (India)
Vilas Mestry, Inter-Univ. Ctr. for Astronomy and Astrophysics (India)
Sujit Punnadi, Inter-Univ. Ctr. for Astronomy and Astrophysics (India)
Sakya Sinha, Inter-Univ. Ctr. for Astronomy and Astrophysics (India)


Published in SPIE Proceedings Vol. 7742:
High Energy, Optical, and Infrared Detectors for Astronomy IV
Andrew D. Holland; David A. Dorn, Editor(s)

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