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Sensor Amplifier for the Venus Ground AmbientPrevious Venus Landers employed high temperature pressure vessels, with thermally protected electronics, to achieve successful missions, with a maximum surface lifetime of 127 minutes. Extending the operating range of electronic systems to the temperatures (480 C) and pressures (90 bar) of the Venus ground ambient would significantly increase the science return of future missions. Toward that end, the current work describes the innovative design of a sensor preamplifier, capable of working in the Venus ground ambient and designed using commercial components (thermionic vacuum tubes, wide band gap transistors, thick film resistors, advanced high temperature capacitors, and monometallic interfaces) To identify commercial components and electronic packaging materials that are capable of operation within the specified environment, a series of active devices, passive components, and packaging materials were screened for operability at 500C, assuming a 10x increase in the mission lifetime. In addition. component degradation as a function of time at 500(deg)C was evaluated. Based on the results of these preliminary evaluations, two amplifiers were developed.
Document ID
20090011246
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
Authors
DelCastillo, Linda Y.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Johnson, Travis W.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Hatake, Toshiro
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Mojarradi, Mohammad M.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Kolawa, Elizabeth A.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 24, 2013
Publication Date
May 15, 2006
Subject Category
Electronics And Electrical Engineering
Meeting Information
Meeting: High Temperature Electronics Conference (HiTEC)
Location: Santa Fe, New Mexico
Country: United States
Start Date: May 15, 2006
End Date: May 16, 2006
Distribution Limits
Public
Copyright
Other
Keywords
Venus electronics

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