NDLI: Wide-temperature-range integrated operational amplifier

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Wide-temperature-range integrated operational amplifier

Content Provider	NASA Technical Reports Server (NTRS)
Author	Mojarradi, Mohammad Levanas, Greg Chen, Yuan Kolawa, Elizabeth Cozy, Raymond Greenwell, Robert Terry, Stephen Blalock, Benjamin
Copyright Year	2007
Description	A document discusses a silicon-on-insulator (SOI) complementary metal oxide/semiconductor (CMOS) integrated- circuit operational amplifier to be replicated and incorporated into sensor and actuator systems of Mars-explorer robots. This amplifier is designed to function at a supply potential less than or equal to 5.5 V, at any temperature from -180 to +120 C. The design is implemented on a commercial radiation-hard SOI CMOS process rated for a supply potential of less than or equal to 3.6 V and temperatures from -55 to +110 C. The design incorporates several innovations to achieve this, the main ones being the following: NMOS transistor channel lengths below 1 m are generally not used because research showed that this change could reduce the adverse effect of hot carrier injection on the lifetimes of transistors at low temperatures. To enable the amplifier to withstand the 5.5-V supply potential, a circuit topology including cascade devices, clamping devices, and dynamic voltage biasing was adopted so that no individual transistor would be exposed to more than 3.6 V. To minimize undesired variations in performance over the temperature range, the transistors in the amplifier are biased by circuitry that maintains a constant inversion coefficient over the temperature range.
File Size	116272
Page Count	1
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20090041270
Archival Resource Key	ark:/13960/t6256kv7p
Language	English
Publisher Date	2007-04-01
Access Restriction	Open
Subject Keyword	Man/system Technology And Life Support Operational Amplifiers Integrated Circuits Electric Potential Soi Semiconductors Circuits Bias Temperature Scales Carrier Injection Topology Low Temperature Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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