MicroSim PSpice A/D & Basics+
Pspice is for analog design. Pspice is a full-featured, native analog and mixed-signal circuit simulator. Used in conjuction with PSpice, PSpice Advanced Analysis tools help designers improve yeild,and reliability of their designs. Most users design a circuit schematic with Viewlogic, then output a netlist in Pspice format which can be used as input to Pspice.