*//////////////////////////////////////////////////////////////////////
* (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, email:
*
*          amps-apps@galaxy.nsc.com
* or visit
*
*  http://amplifers.national.com
*
* /////////////////////////////////////////////////////////////////
* v1.0.0  June 2002

This zip file contains the following files:

 1) nationalhighspeed.olb: This file contains schematic capture symbols for 
    National Semiconductor's LMH series high speed op-amp. Symbol's pin
    assignments are matched to the SPICE netlist text files in
    nationalhighspeed.lib.

 2) nationalhighspeed.lib: This file contains SPICE models ( netlists ) for
    National Semiconductor's LMH series high speed op-amp.

 3) nationalhighspeed.opj: This is an OrCAD project file. This serves as a
    project manager under the schematic Capture program.

 4) nationalhighspeed.ind: This is an internal OrCAD PSPICE file.

Only nationalhighspeed.olb and nationalhighspeed.lib are necessary files
for OrCAD PSPICE simulation. The nationalhighspeed.opj and
nationalhighspeed.ind are used by OrCAD for file management.

Here is the typical procedure to run PSPICE simulation in OrCAD:

First, copy both files 1) and 2) into the same specified directory and then
insert the part symbols of the op-amp in the schematic thru Capture.

After finishing the schematic and test circuit, go to simulation profile
and specify the path for file a) and b) in the library option ( some of the
new version does not need to do it ). The schematic should be ready to run.

When doing the simulation, the path of nationalhighspeed.lib needs to be added
under either the "Include Files" option or the "Libraries" option in
the "Simulation Profile".



