This document provides a 3 input comparator circuit model created using PSpice software. The model includes resistors, voltage sources for the three inputs, and logic statements to determine the output based on the inputs. A simulation is described to test the comparator circuit by applying different voltages to the three inputs and observing the output.

1. IC Modeling
Device Modeling of
3 Input Comparator
Using PSpice
13OCT2014
Bee Technologies Inc
Tsuyoshi Horigome

2. Equivalent Circuit
R1
10
R2
100MEG
OUT-E3
EVALUE
EVALUE
3INPUT COMPARATOR
1
if (V(3INPUT_COMPARATOR_INPUT_P)>(V(3INPUT_COMPARATOR_INPUT_M1)+0.01),5,0)
R3
100MEG
R4
100MEG
R5
100MEG
R6
100MEG
R7
100MEG
3INPUT_COMPARATOR_INPUT_P
3INPUT_COMPARATOR_INPUT_M1
3INPUT_COMPARATOR_INPUT_M2
0 0 0
OUT-E2
IN+
IN-OUT+
OUT-E1
IN+
IN-OUT+
EVALUE
if (V(3INPUT_COMPARATOR_INPUT_P)>(V(3INPUT_COMPARATOR_INPUT_M2)+0.01),5,0)
0
0
0
N100
N200
IN+
IN-OUT+
if (v (N100)>4|V(N200)>4,5,0)
C1
10p
IC = 0
3INPUT_COMPARATOR_OUTPUT
0 0
V1
V1 = 0
V2 = 5
TD = 0
TR = 10u
V
TF = 10u
PW = 10n
PER = 20.01u
V2
2Vdc
V3
3Vdc
0 0 0
V
V
V

3. Simulation
Input
Output