Hi Guys 
I include below a SPICE netlist pertaining to a filter/detector circuit. I have not used SPICE before, and am stymied by an error which prevents the simulation from running and has something to do with an op-amp.
Can anyone please help me understand what is going on with this simulation?
(Also see attached image)
Thanks....
SPICE Netlist
* C:\Program Files\LTC\LTspiceIV\colour organ 1.asc
C1 P001 N014 .000001
R1 N002 P001 5000
XU1 N012 N010 N004 opamp Aol=100K GBW=10Meg
R2 N012 N014 5600
C2 N004 N012 .000001
XU2 N008 N004 N006 opamp Aol=100K GBW=10Meg
D1 N006 N008 1N914
R3 N008 N014 10000
C3 N008 N014 .000001
XU3 N007 N008 N009 opamp Aol=100K GBW=10Meg
R4 N001 N007 10000
R5 N007 N014 10000
Q1 N011 N013 N014 0 2N2222
R6 N003 N011 200
D2 N001 N003 NSPW500BS
R7 N001 N005 10000
R8 N005 N015 10000
XU4 N014 N005 N014 opamp Aol=100K GBW=10Meg
V1 N001 N015 6
R9 N009 N013 200
V2 N002 N014 SINE(0 1 50)
.model D D
.lib C:\Program Files\LTC\LTspiceIV\lib\cmp\standard.dio
.model NPN NPN
.model PNP PNP
.lib C:\Program Files\LTC\LTspiceIV\lib\cmp\standard.bjt
.tran 100
.backanno
.end
I include below a SPICE netlist pertaining to a filter/detector circuit. I have not used SPICE before, and am stymied by an error which prevents the simulation from running and has something to do with an op-amp.
Can anyone please help me understand what is going on with this simulation?
(Also see attached image)
Thanks....
SPICE Netlist
* C:\Program Files\LTC\LTspiceIV\colour organ 1.asc
C1 P001 N014 .000001
R1 N002 P001 5000
XU1 N012 N010 N004 opamp Aol=100K GBW=10Meg
R2 N012 N014 5600
C2 N004 N012 .000001
XU2 N008 N004 N006 opamp Aol=100K GBW=10Meg
D1 N006 N008 1N914
R3 N008 N014 10000
C3 N008 N014 .000001
XU3 N007 N008 N009 opamp Aol=100K GBW=10Meg
R4 N001 N007 10000
R5 N007 N014 10000
Q1 N011 N013 N014 0 2N2222
R6 N003 N011 200
D2 N001 N003 NSPW500BS
R7 N001 N005 10000
R8 N005 N015 10000
XU4 N014 N005 N014 opamp Aol=100K GBW=10Meg
V1 N001 N015 6
R9 N009 N013 200
V2 N002 N014 SINE(0 1 50)
.model D D
.lib C:\Program Files\LTC\LTspiceIV\lib\cmp\standard.dio
.model NPN NPN
.model PNP PNP
.lib C:\Program Files\LTC\LTspiceIV\lib\cmp\standard.bjt
.tran 100
.backanno
.end