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+*//////////////////////////////////////////////////////////////////////
+* (C) National Semiconductor, Inc.
+* Models developed and under copyright by:
+* National Semiconductor, Inc.  
+
+*/////////////////////////////////////////////////////////////////////
+* Legal Notice: This material is intended for free software support.
+* The file may be copied, and distributed; however, reselling the 
+*  material is illegal
+
+*////////////////////////////////////////////////////////////////////
+* For ordering or technical information on these models, contact:
+* National Semiconductor's Customer Response Center
+*                 7:00 A.M.--7:00 P.M.  U.S. Central Time
+*                                (800) 272-9959
+* For Applications support, contact the Internet address:
+*  amps-apps@galaxy.nsc.com
+
+*//////////////////////////////////////////////////////////
+*LM741 OPERATIONAL AMPLIFIER MACRO-MODEL
+*//////////////////////////////////////////////////////////
+*
+* connections:      non-inverting input
+*                   |   inverting input
+*                   |   |   positive power supply
+*                   |   |   |   negative power supply
+*                   |   |   |   |   output
+*                   |   |   |   |   |
+*                   |   |   |   |   |
+.SUBCKT LM741/NS    1   2  99  50  28
+*
+*Features:
+*Improved performance over industry standards
+*Plug-in replacement for LM709,LM201,MC1439,748
+*Input and output overload protection
+*
+****************INPUT STAGE**************
+*
+IOS 2 1 20N
+*^Input offset current
+R1 1 3 250K
+R2 3 2 250K
+I1 4 50 100U
+R3 5 99 517
+R4 6 99 517
+Q1 5 2 4 QX
+Q2 6 7 4 QX
+*Fp2=2.55 MHz
+C4 5 6 60.3614P
+*
+***********COMMON MODE EFFECT***********
+*
+I2 99 50 1.6MA
+*^Quiescent supply current
+EOS 7 1 POLY(1) 16 49 1E-3 1
+*Input offset voltage.^
+R8 99 49 40K
+R9 49 50 40K
+*
+*********OUTPUT VOLTAGE LIMITING********
+V2 99 8 1.63
+D1 9 8 DX
+D2 10 9 DX
+V3 10 50 1.63
+*
+**************SECOND STAGE**************
+*
+EH 99 98 99 49 1
+G1 98 9 5 6 2.1E-3
+*Fp1=5 Hz
+R5 98 9 95.493MEG
+C3 98 9 333.33P
+*
+***************POLE STAGE***************
+*
+*Fp=30 MHz
+G3 98 15 9 49 1E-6
+R12 98 15 1MEG
+C5 98 15 5.3052E-15
+*
+*********COMMON-MODE ZERO STAGE*********
+*
+*Fpcm=300 Hz
+G4 98 16 3 49 3.1623E-8
+L2 98 17 530.5M
+R13 17 16 1K
+*
+**************OUTPUT STAGE**************
+*
+F6 50 99 POLY(1) V6 450U 1
+E1 99 23 99 15 1
+R16 24 23 25
+D5 26 24 DX
+V6 26 22 0.65V
+R17 23 25 25
+D6 25 27 DX
+V7 22 27 0.65V
+V5 22 21 0.18V
+D4 21 15 DX
+V4 20 22 0.18V
+D3 15 20 DX
+L3 22 28 100P
+RL3 22 28 100K
+*
+***************MODELS USED**************
+*
+.MODEL DX D(IS=1E-15)
+.MODEL QX NPN(BF=625)
+*
+.ENDS
+*$