ericgibbs Well-Known Member Most Helpful Member Nov 8, 2016 #21 momo36 said: h. thanks. can you foward me the real scematic Click to expand... hi, Try these two sims. E Attachments DAC2m2.asc 5.9 KB · Views: 217 DAC2m2a.asc 5.9 KB · Views: 224
momo36 said: h. thanks. can you foward me the real scematic Click to expand... hi, Try these two sims. E
ericgibbs Well-Known Member Most Helpful Member Nov 8, 2016 #22 momo36 said: View attachment 102165 what is this for ? the purpose and function of it? Click to expand... hi. It is a Voltage to Current converter circuit. E
momo36 said: View attachment 102165 what is this for ? the purpose and function of it? Click to expand... hi. It is a Voltage to Current converter circuit. E
M momo36 New Member Nov 8, 2016 #23 hi, i am unable to open the ca3140 missing. is there any replacement for that?
M momo36 New Member Nov 8, 2016 #24 I cannot find a SPICE model for Ca3140. They have data sheets for them but no SPICE models for them, even though they do have models for other ICs in their range.
I cannot find a SPICE model for Ca3140. They have data sheets for them but no SPICE models for them, even though they do have models for other ICs in their range.
ericgibbs Well-Known Member Most Helpful Member Nov 8, 2016 #25 You can any good OPA with a single supply operation specification, try the LT1006 in OPA folder
M momo36 New Member Nov 8, 2016 #26 hi, i do not know why when i measure the graph the first period i get zero micro Ampere.
M momo36 New Member Nov 8, 2016 #27 attached is the latest circuit Attachments latest_meenal.asc 5.9 KB · Views: 213
ericgibbs Well-Known Member Most Helpful Member Nov 8, 2016 #28 hi, Replace the OPA with a LTC6240, it is the F2 OPAMP list. E Attachments A003.gif 47.9 KB · Views: 238