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Proceedings Paper

Development of an ASIC for the readout and control of near-infrared large array detectors
Author(s): Dirk Meier; Hans Kristian Otnes Berge; Amir Hasanbegovic; Mehmet A. Altan; Bahram Najafiuchevler; Suleyman Azman; Jahanzad Talebi; Alf Olsen; Petter Øya; Philip Paahlsson; Codin Gheorghe; Gunnar Maehlum
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Paper Abstract

The article describes the near infrared readout and controller ASIC (NIRCA) developed by Integrated Detector Electronics AS (IDEAS). The project aims at future astronomical science and Earth observation missions, where the ASIC will be used with image sensors based on mercury cadmium telluride (HgCdTe, or MCT). NIRCA is designed to operate from cryogenic temperatures (77 K) to higher than room temperature (328 K) and in a high radiation environment (LET > 60 MeVcm2/mg). The ASIC connects to the readout integrated circuit (ROIC) and delivers fully digitized data via serial digital output. The ASIC contains an analogue front-end (AFE) with 4 analogue-to-digital converters (ADCs) and programmable gain amplifiers with offset adjustment. The ADCs have a differential input swing of ±2 V, 12-bit resolution, and a maximum sample rate of 3 MSps. The ASIC contains a programmable sequencer (microcontroller) to generate up to 40 digital signals for the ROIC and to control the analogue front-end and DACs on the chip. The ASIC has two power supply voltage regulators that provide the ROIC with 1.8 V and 3.3 V, and programmable 10-bit DACs to generate 16 independent reference and bias voltages from 0.3 V to 3 V. In addition NIRCA allows one to read 8 external digital signals, and monitor external and internal analogue signals including onchip temperature. NIRCA can be programmed and controlled via SPI interface for all internal functions and allows data forwarding from and to the ROIC SPI interface.

Paper Details

Date Published: 23 July 2014
PDF: 9 pages
Proc. SPIE 9154, High Energy, Optical, and Infrared Detectors for Astronomy VI, 915421 (23 July 2014); doi: 10.1117/12.2055839
Show Author Affiliations
Dirk Meier, Integrated Detector Electronics AS (Norway)
Hans Kristian Otnes Berge, Integrated Detector Electronics AS (Norway)
Amir Hasanbegovic, Integrated Detector Electronics AS (Norway)
Mehmet A. Altan, Integrated Detector Electronics AS (Norway)
Bahram Najafiuchevler, Integrated Detector Electronics AS (Norway)
Suleyman Azman, Integrated Detector Electronics AS (Norway)
Jahanzad Talebi, Integrated Detector Electronics AS (Norway)
Alf Olsen, Integrated Detector Electronics AS (Norway)
Petter Øya, Integrated Detector Electronics AS (Norway)
Philip Paahlsson, Integrated Detector Electronics AS (Norway)
Codin Gheorghe, Integrated Detector Electronics AS (Norway)
Gunnar Maehlum, Integrated Detector Electronics AS (Norway)

Published in SPIE Proceedings Vol. 9154:
High Energy, Optical, and Infrared Detectors for Astronomy VI
Andrew D. Holland; James Beletic, Editor(s)

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