DocumentCode :
2271081
Title :
Data converters performance at extreme temperatures
Author :
Ramesham, Rajeshuni ; Kumar, Nikil ; Mao, James ; Keymeulen, Didier ; Zebulum, Ricardo S. ; Stoica, Adrian
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA
fYear :
0
fDate :
0-0 0
Abstract :
Space missions often require radiation and extreme-temperature hardened electronics to survive the harsh environments beyond Earth´s atmosphere. Traditional approaches to preserve electronics incorporate shielding, insulation and redundancy at the expense of power and weight. However, a novel way of bypassing these problems is the concept of evolutionary hardware. Are configurable device, consisting of several switches interconnected with analog/digital parts, is controlled by an evolutionary processor (EP). When the EP detects degradation in the circuit it sends signals to reconfigure the switches, thus forming a new circuit with the desired output. This concept has been developed since the mid-90s, but one problem remains - the EP cannot degrade substantially. For this reason, extensive testing at extreme temperatures (-180deg to 120degC) has been done on devices found on FPGA boards (taking the role of the EP) such as the analog to digital and the digital to analog converter. Analysis of the results has shown that FPGA boards implementing EP with some compensation may be a practical solution to evolving circuits. This paper describes results on the tests of data converters at extreme temperatures
Keywords :
aerospace propulsion; analogue-digital conversion; compensation; field programmable gate arrays; radiation hardening (electronics); terrestrial atmosphere; EP; Earth atmosphere; FPGA boards; analog to digital converter; data converters; digital to analog converter; evolutionary processor; extensive testing; extreme temperature; radiation hardened electronics; space missions; Circuit testing; Degradation; Field programmable gate arrays; Hardware; Insulation; Radiation hardening; Space missions; Switches; Temperature; Terrestrial atmosphere;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Aerospace Conference, 2006 IEEE
Conference_Location :
Big Sky, MT
Print_ISBN :
0-7803-9545-X
Type :
conf
DOI :
10.1109/AERO.2006.1655972
Filename :
1655972
Link To Document :
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