Introduction to LTSPICE for Simulating 741 Op-Amp Amplifier and Low pass Filter Circuits

This video shows how to simulate 741 Op-Amp Amplifier and Low pass Filter Circuits in LTSPICE.
It has the following chapters: (00:00) [1] Introduction (01:03) [2] Macro-models (02:36) [3] 741 op-amp model (04:03) [4] Creating LTSPICE 741 op-amp model (09:13) [5] Op-amp DC operating point simulation (10:28) [6] Op-amp Transient simulation (13:26) [7] Op-amp AC analysis simulation It discusses the following: (a) In Section 2: Briefly discusses how op-amps are modeled using macro-modelling techniques in circuit simulators such as LTSPICE. (b) In Section 3: Identifies an appropriate 741 op-amp subcircuit model for use with LTSPICE. (c) In Section 4: Shows how to create a symbol for the 741 op-amp in LTSPICE and link the symbol to the subcircuit model. (e) In Section 5: Shows how to do dc operating point simulation of an op-amp amplifier circuit. (f) In Section 6: Shows how to do transient simulation of an op-amp amplifier circuit.
It also shows how to customize and edit the plots (12:15). (g) In Section 7: Shows how to do ac analysis simulation of a first order active low-pass filter circuit, i.e., plotting the Bode plots. The ua741 subcircuit is below.
Copy paste this subcircuit in a uA741.lib file.
Place this subcircuit file in the folder C:Users[USERNAME]DocumentsLTspiceXVIIlibsub -------------------------------------------------------------------- * Source: http://qucs.sourceforge.net/docs/tutorial/opamp.pdf (page 62) *----------------------------------------------------------------------------- * connections: non-inverting input * | inverting input * | | positive power supply * | | | negative power supply * | | | | output * | | | | | .subckt uA741 1 2 3 4 5 c1 11 12 8.661E-12 c2 6 7 30.00E-12 dc 5 53 dx de 54 5 dx dlp 90 91 dx dln 92 90 dx dp 4 3 dx egnd 99 0 poly(2) (3,0) (4,0) 0 .5 .5 fb 7 99 poly(5) vb vc ve vlp vln 0 10.61E6 -10E6 10E6 10E6 -10E6 ga 6 0 11 12 188.5E-6 gcm 0 6 10 99 5.961E-9 iee 10 4 dc 15.16E-6 hlim 90 0 vlim 1K q1 11 2 13 qx q2 12 1 14 qx r2 6 9 100.0E3 rc1 3 11 5.305E3 rc2 3 12 5.305E3 re1 13 10 1.836E3 re2 14 10 1.836E3 ree 10 99 13.19E6 ro1 8 5 50 ro2 7 99 100 rp 3 4 18.16E3 vb 9 0 dc 0 vc 3 53 dc 1 ve 54 4 dc 1 vlim 7 8 dc 0 vlp 91 0 dc 40 vln 0 92 dc 40 .model dx D(Is=800.0E-18 Rs=1) .model qx NPN(Is=800.0E-18 Bf=93.75) .ends