Use Free LTSpice for Analog Circuit Simulation

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Use Free LTSpice for Analog Circuit Simulation

I used Pspice and Hspice before. Pspice is a good tool with a student version which can be freely downloaded . Hspice is more accurate but it lacks GUI interface. Both (full version) are commercial software. I find LTSpice from Linear which is open source based (free) and with a good gui tool.

LTspice site is  http://www.linear.com/designtools/software/

 

Here is an example to simulate RC circuit:

ltspice-1

ASC (netlist) file is:

C1 Vout 0 1n
R1 Vout Vin 100
V1 Vin 0 PWL(0 0 1n 1) Rser=0
.tran 0 500n 0 10p
.backanno
.end

Simulation result is:

ltspice-2

 

Here is another example to simulate lossless transmission line:

ltspice-3

Netlist is:

T1 Vin 0 Vout 0 Td=250p Z0=50
R1 Vin N001 25
V1 N001 0 PWL(0 0 10p 1)
R2 Vout 0 75
.tran 0 1n 0 1p
.backanno
.end

 

Simulation result is:

ltspice-4

 

 

 

 
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1 Comment
  1. caryspeth 4 years ago
    0
    -0

    Thanks for bringing it up. I gave it a try. Compared to Pspice student version, it is a tie-tie.

    5

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