Precision op amps are widely used in instrumentation, automotive, and industrial applications. This thesis presents the design and characterization of a low-power precision operational amplifier that uses “ping-pong” autozero architecture for automatic offset correction. The op amp is designed for extreme environment applications, operating across a wide temperature range (minus 180 degree Celsius to plus 120 degree Celsius) with low offset, low drift and low power consumption. This design has been fabricated in a SiGe BiCMOS 0.5-micron process and the measured results demonstrate that the op amp is fully functional and achieves less than 40 microvolt input-referred offset voltage with 0.1 microvolt per degree offset voltage drift and 1 microwatt power consumption.
| Identifer | oai:union.ndltd.org:UTENN_/oai:trace.tennessee.edu:utk_gradthes-1535 |
| Date | 01 December 2008 |
| Creators | Xi, Pengfei |
| Publisher | Trace: Tennessee Research and Creative Exchange |
| Source Sets | University of Tennessee Libraries |
| Detected Language | English |
| Type | text |
| Source | Masters Theses |
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