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Design and Analysis of a LWIR Detector Electronics for Space Applications

Behnke, Thomas and Grott, Matthias and Knollenberg, Jörg and Napp, Nicolas (2023) Design and Analysis of a LWIR Detector Electronics for Space Applications. Infrared Detection for Space Applications, 2023-06-07 - 2023-06-09, Toulouse, Frankreich.

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µBolometers based on a-Si technology provide a marketable performance while at the same time requiring only moderate resources in terms of cooling requirements. The PICO1024 is a high resolution (1024x768 pixels) infrared image sensor for thermography applications. It makes use of LYNRED latest, state of the art, 17 µm pixel pitch technology. The PICO1024 sensor is a 2-dimensional detector array sensitive to infrared radiation in the long wave spectral range (LWIR) from 8 to 14 m. It uses microbolometer technology to convert infrared radiation into electronic signal for use in thermal imaging cameras. Starting from an analysis of the Capacitance Trans-Impedance Amplifier (CTIA) the front-end electronics architecture is described and analyzed. This includes transient and AC Spice simulations as well as an analysis of the readout signal chain noise performance. The paper also presents a possible replacement of key components (ADC, opamp) by low power, high performance space qualified IEEE parts. An instrument concept presents the implementation of the PICO1024 into a thermal infrared multi-spectral imager for an Io mission .

Item URL in elib:https://elib.dlr.de/202408/
Document Type:Conference or Workshop Item (Speech)
Title:Design and Analysis of a LWIR Detector Electronics for Space Applications
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Grott, MatthiasUNSPECIFIEDhttps://orcid.org/0000-0002-8613-7096UNSPECIFIED
Date:7 June 2023
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:IR Detektor, µBolometer, Elektronik, Operationsverstärker, ADC, Rauschen, Auflösung, Ansteuerung
Event Title:Infrared Detection for Space Applications
Event Location:Toulouse, Frankreich
Event Type:Workshop
Event Start Date:7 June 2023
Event End Date:9 June 2023
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Space Exploration
DLR - Research theme (Project):R - Icy Moon's technology preparation
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Sensor Systems
Deposited By: Behnke, Thomas
Deposited On:25 Jan 2024 14:13
Last Modified:24 Apr 2024 21:02

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