The exponential characteristic of the base-emitter
Junction in bipolar transistors was used to make an
accurate and fairly temperature independent multiplier.
Using hybrid-pi transistor models and ECAP, a
bandwidth of 350 MHz was predicted. Linearity is
limited by emitter degeneration in the input differential
stage rather than by the small errors in the actual
multiplying stage.
The multiplier was fabricated as a monolithic
integrated circuit in the Tektronix integrated circuits
laboratory. The prototype showed a bandwidth of 200 MHz,
and a linearity of 2% over 50% of the dynamic range,
when used as a variable gain amplifier. / Graduation date: 1968
| Identifer | oai:union.ndltd.org:ORGSU/oai:ir.library.oregonstate.edu:1957/34159 |
| Date | 04 March 1968 |
| Creators | Traa, Einar |
| Contributors | Looney, James C. |
| Source Sets | Oregon State University |
| Language | en_US |
| Detected Language | English |
| Type | Thesis/Dissertation |
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