Cadence
Cadence 6.14 Virtual Machine
Research Links Download_cadence_IC614_Virtual_Machine ReadmeFirst_2 Calibre_license_setup_tutorial related video for V5 by the same guy google: cadence virtuoso virtual machine
Cadence
Cadence 5.11 Virtual Machine
Research Links Video: Cadence Tutorial 1 5.11 download – virtual machine runs on VMWare
Cadence
Cadence Error LX-2063 Technology Library cdsDefTechLib contains no constraint groups
Research Links This problem addressed in internet Q&A When I have a schematic open and click on Launch > Layout XL the following error pops up. I found cdsDefTechLib in the library manager as shown below under CadenceLibs. I need to know what to do with that! Read more…
Cadence
Varying Parameters during a Cadence Transient Analysis – Dynamic Parameters and Feeding Final Conditions into Initial Conditions
Research Links Virtuoso Spectre Circuit Simulator Reference – Dynamic Parameters during Transient Analysis See page 301. This only allows 1 parameter to be varied per run. See first image below. Virtuoso ADE L User Guide Click on the option button to get to the windows where you specify the file to read Read more…
Cadence
Cadence Vector Files
This is mostly a place holder for later when I need to know about Cadence vector files. Research Links Vector File Simulation digital vector file format guide
Cadence
Cadence: VCO Design Using SpectreRF
I was looking for a way I could plot the output frequency of a ring oscillator versus an input tuning voltage. I did not find anything easy and fast in the literature but I think PSS is the key for the more formal methods. PSS = Periodic Steady State. Read more…
Cadence
Creating a Parameterized Cell in Cadence
Research Links Creating a Parameterized Cell in Cadence Component Description Format Users Guide – Once you create a part if you want to update the parameters of the block you are going to have to use EDIT CDF. See user guide page 24 or graphic below.
Cadence
1 nanoamp Current Source with No Resistors Using Self Cascode MOSFET
Note the 500M Ohm resistor is only to test the current reference.  It would be replaced by your application circuit. Research Links A 2-nW 1.1-V Self-Biased Current Reference in CMOS Technology CMOS Current Reference for UltraLow Energy Consumption  Archive:  Current-Source.7z   Program = LTSPICE Extract into directory.  Includes the required Read more…
Cadence
Ultra Low Current Band Gap References Using NanoAmps of Current with Good MonteCarlo Results
If you need a voltage reference when doing energy harvesting it is very helpful have a band gap reference that uses very little current. Â This topology uses “Self Cascode Mosfet” Â abreviated as SCM. Â The LTSPICE design uses 4.5 nano Amperes and outputs a 0.6 Volt reference voltage. Research Links REFERENCIA-DE-CORRENTE-CMOS-PARA-APLICACOES-DE-ULTRABAIXO-CONSUMO-DE-POTENCIAÂ Read more…