Hello,
I've been trying to simulate Linear's LT1990 diff amp on my (t)rusty Circuit Maker 2000 program. I downloaded the SPICE model from the Linear website. I set it up on the circuit below but when I run the simulation, I get a series of similar errors, starting with:
*EICM 140 0 VALUE={(V(21)+V(22))/2}*
*
* Error in preceeding PARAM line: No match for parameter in: {(V(21)+V(22))/2}
I can simulate the same circuit with a different amp; one that came with the product.
It's been many moons since I've used CM2K or have done any simulation so I might be missing something obvious. I'd appreciate your help.
Thanks,
JR
I've been trying to simulate Linear's LT1990 diff amp on my (t)rusty Circuit Maker 2000 program. I downloaded the SPICE model from the Linear website. I set it up on the circuit below but when I run the simulation, I get a series of similar errors, starting with:
*EICM 140 0 VALUE={(V(21)+V(22))/2}*
*
* Error in preceeding PARAM line: No match for parameter in: {(V(21)+V(22))/2}
I can simulate the same circuit with a different amp; one that came with the product.
It's been many moons since I've used CM2K or have done any simulation so I might be missing something obvious. I'd appreciate your help.
Thanks,
JR