When I used PSPICE Library (tex_inst.lib,tex_inst.olb) for LM339 are mentioned 8 pin single comparator but when i refer datasheet it shows 14 pin quad comparator structure, so please tell me which one is correct
The LM339 PSpice model is a 5 pin single comparator. The single channel comparator may be placed 4 times to represent the quad comparator. This is a standard practice when using/creating PSpice models.The VCC+ and VCC- pins in the actual device would be shared. Please note that interactions between the 4 channels that would occur in the actual IC would not be represented in the PSpice model.
This single comparator is a 5 pin device ( Vin+, Vin-, vout, VDD and GND) as it is indicated in the model down loadable from ti.com site ( shown below). However, if you use it as dual it will be a 8 pin device ( additional inputs pair and one output) . For quad it will be 14 pin device. Most models are for single device unless mentioned otherwise and user can utilize them as Dual or Quad.
* LM339 VOLTAGE COMPARATOR "MACROMODEL" SUBCIRCUIT* CREATED USING PARTS VERSION 4.03 ON 03/07/90 AT 14:17* REV (N/A)* CONNECTIONS: NON-INVERTING INPUT* | INVERTING INPUT* | | POSITIVE POWER SUPPLY* | | | NEGATIVE POWER SUPPLY* | | | | OPEN COLLECTOR OUTPUT* | | | | |.SUBCKT LM339 1 2 3 4 5
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