Cascaded resonant tunneling diode quantizer for analog-to-digital flash conversion

Kholod, Alexandre N.; Liniger, M.; Zaslavsky, A.; d'Avitaya, F. Arnaud
July 2001
Applied Physics Letters;7/2/2001, Vol. 79 Issue 1, p129
Academic Journal
We propose and model an application of cascaded resonant tunneling diodes to flash analog-to-digital conversion. We connect diodes of linearly increasing area in series, with separate contacts to interconnecting doped layers between the diodes. When a voltage is applied to the structure, the linearly changing diode size determines which of the diodes switch to the valley current, while the interconnecting contacts allow for a differential voltage measurement that accomplishes the signal quantization. The resulting flash quantizer has an estimated frequency operating limit in the gigahertz range. © 2001 American Institute of Physics.


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