PSpice

  
Figure: PSpice model for the 741 op-amp.

In order for you to analyze certain devices such as op-amps and transistors using PSpice, you must use controlled sources. The following controlled sources are available: Voltage Controlled Voltage Source (VCVS), Voltage Controlled Current Source (VCCS), Current Controlled Voltage Source (CCVS) and Current Controlled Current Source (CCCS). These sources are specified in the following manner:

• VCVS: Ename gain
• VCCS: Gname gain()
• CCVS: Hname Vname gain()
• CCCS: Fname Vname gain

and are the nodes of the controlling voltage for voltage controlled sources (either voltage or current sources). Vname is the name of the voltage source through which the controlling current flows for current controlled sources (either voltage or current sources). Note that the voltage source through which the controlling current flows can be a dummy voltage source.

Analyze the circuit you designed in Section using PSpice and the op-amp model shown in Figure . Use a 250 mV source at the non-inverting input. Include the PSpice output in your lab report.