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Characteristics of voltage multipliers for a Josephson D/A converter

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4 Author(s)
Hirayama, Fuminori ; Nat. Inst. of Adv. Ind. Sci. & Technol., Ibaraki, Japan ; Maezawa, M. ; Sasaki, H. ; Shoji, A.

We present design and experimental results of a voltage multiplier (VM) that is a main component of a Josephson D/A converter based on single flux quantum pulses. We have analyzed the VM operation through detailed simulations and have re-designed the circuit. The amplitude of the constant-voltage step for a 64-stage VM with the new design is 80 μA at 10 GHz of an input frequency, which is sufficiently large for D/A converter applications.

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Applied Superconductivity, IEEE Transactions on  (Volume:13 ,  Issue: 2 )