A gigasample/s 5 bit ADC with on-chip track hold based on an industrial 1 mu m GaAs MESFET E/D process
- 1 January 1991
- proceedings article
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 365-368
- https://doi.org/10.1109/gaas.1991.172715
Abstract
To enhance the dynamic accuracy of high speed A/D conversion, a 5 bit flash converter with on-chip Track & Hold circuitry has been developed. The design is based on TriQuint's commercial 1 mu m GaAs E/D MESFET process. Dynamic characterization has been performed up to 1 Gsps. An accuracy of 4.4 effective bits even at 1 GSps with full Nyquist input was achieved. A comparison showing the accuracy with Track & Hold in operation and in tracking only mode is given. The outstanding performance is due to a carefully designed Track & Hold and the use of differential SCFL in the converterKeywords
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