Issue link: https://resources.pcb.cadence.com/i/1180526
PSpice User Guide Preparing a design for simulation October 2019 170 Product Version 17.4-2019 © 1999-2019 All Rights Reserved. Defining power supplies For the analog portion of your circuit If the analog portion of your circuit requires DC power, then you need to include a DC source in your design. To specify a DC source, use one of the following parts. To find out how to use these parts and specify their properties, see the following: ■ Setting up a DC stimulus on page 476 ■ Using VSRC or ISRC parts on page 176 For A/D interfaces in mixed-signal circuits Default digital power supplies Every digital part supplied in the PSpice libraries has a default digital power supply defined for its A-to-D or D-to-A interface subcircuit. This means that if you are designing a mixed-signal circuit, then you have a default 5 volt digital power supply built-in to the circuit at every interface. For this source type... Use this part... voltage VDC or VSRC current IDC or ISRC