home *** CD-ROM | disk | FTP | other *** search
- * Library of Op Amp subcircuit definitions
- *
- * This is a reduced version of MicroSim's opamp subcircuit library.
- * You are welcome to make as many copies of it as you find convenient.
- *
- * Release date: 87/06/22
- *
- * The parameters in this opamp library were derived from the data
- * sheets for each part. The macromodel used is described in:
- *
- * Macromodeling of Integrated Circuit Operational Amplifiers
- * by Graeme Boyle, Barry Cohn, Donald Pederson, and
- * James Solomon
- * IEEE Journal of Solid-State Circuits, Vol. SC-9, no. 6, Dec. 1974
- *
- * Differences from the reference (above) occur in the output limiting stage
- * which was modified to reduce internally generated currents associated with
- * output voltage limiting, as well as short-circuit current limiting.
- *
- * The opamps are modelled at room temperature. The macro model
- * does not track changes with temperature. This library file contains
- * models for nominal, not worst case, devices.
- *
- * Note: Each macromodel consists of a subcircuit definition AND a set
- * of .MODEL statements. The .MODEL statements should be put into
- * the main circuit file along with the subcircuit definition.
- *
- *
- *-----------------------------------------------------------------------------
- * 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)
- .model qx NPN(Is=800.0E-18 Bf=93.75)
- .ends
- *
- * End of library file
-