A novel analog-to-digital conversion architecture using electron waveguides

We have demonstrated a novel analog-to-digital (A:D) conversion architecture based on the quantized conductance of electron waveguides. In our scheme, a dual electron waveguide (DWG) device implements a binary quantizer and encoder for one significant bit. The conductance values of the on and off st...

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Bibliographic Details
Main Authors: Eugster, Nuytkens, del Alamo
Format: Conference Proceeding
Language:English
Subjects:
Aluminum compounds
Analog-digital conversion
Encoding
Gallium compounds
Quantum effect semiconductor devices
Semiconductor junctions
Online Access:Request full text
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Summary:We have demonstrated a novel analog-to-digital (A:D) conversion architecture based on the quantized conductance of electron waveguides. In our scheme, a dual electron waveguide (DWG) device implements a binary quantizer and encoder for one significant bit. The conductance values of the on and off states are 2e/sup 2//h and zero, respectively. By cascading multiple DWG devices, higher order bits can be attained. In this paper, we demonstrate the first significant bit and the second significant bit for a 2-bit analog-to-digital converter using a DWG device fabricated in an AlGaAs/GaAs modulation-doped heterostructure.< >
ISSN:0163-1918
2156-017X
DOI:10.1109/IEDM.1992.307409