Superconducting Circuits Design Tool: Application to High Frequency Sigma Delta Adc

We present an application tool dedicated to superconducting circuits design. Based on the use of VHDL-AMS language on System Vision software, we developed an innovating approach with top-down methodology to specify the RSFQ circuits. We take the example of a sigma-delta bandpass ADC and show the different processes used to design it. The demonstration shows the complete system in mixed signal language VHDL-AMS with the digital part in VHDL, the SNR can be followed block after block. Then, an example of parameter optimization in the modulator is performed.