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Accession Number
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N20120014253
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Title
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Radiation Hardened by Design CMOS ASIC for Thermopile Readouts.
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Publication Date
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Oct 2012
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Media Count
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5p
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Personal Author
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G. Quilligan J. DuMonthier S. Aslam
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Abstract
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A radiation hardened by design (RHBD) mixed-signal application specific integrated circuit (ASIC) has been designed for a thermopile readout for operation in the harsh Jovian orbital environment. The multi-channel digitizer (MCD) ASIC includes 18 low noise amplifier channels which have tunable gain/filtering coefficients, a 16-bit sigma-delta analog-digital converter (SDADC) and an on-chip controller. The 18 channels, SDADC and controller were designed to operate with immunity to single event latchup (SEL) and to at least 10 Mrad total ionizing dose (TID). The ASIC also contains a radiation tolerant 16-bit 20 MHz Nyquist ADC for general purpose instrumentation digitizer needs. The ASIC is currently undergoing fabrication in a commercial 180 nm CMOS process. Although this ASIC was designed specifically for the harsh radiation environment of the NASA led JEO mission it is suitable for integration into instrumentation payloads 011 the ESA JUICE mission where the radiation hardness requirements are slightly less stringent.
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Keywords
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Analog to digital converters
Application specific integrated cir
Cmos
Electronic packaging
Electronic recording systems
Fabrication
Jupiter probes
Jupiter(Planet)
Radiation hardening
Readout
Thermoelectricity
Thermopiles
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Source Agency
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National Aeronautics and Space Administration
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NTIS Subject Category
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49E - Optoelectronic Devices & Systems
49B - Circuits
68F - Radiation Pollution & Control
82C - Recording Devices
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Corporate Author
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Goddard Space Flight Center, Greenbelt, MD.
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Document Type
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Conference proceedings
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Title Note
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N/A
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NTIS Issue Number
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1308
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Contract Number
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N/A
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