Hi
Sub: ISL71840SEH analogue multiplexer Simulation quarries
Good Day!
We have done simulation on TINA and LT spice simulation tools with ISL71840SEH analogue multiplexer. We found following parameters exceed the data sheet limits.
Sl.No
Parameter
Data sheet Specification
Remarks
Min.
Typ.
Max.
Units
1
Switch Off Leakage
Switch off leakage Drain (ID)
-80
-
80
nA
In TINA simulation and LT Spice simulation observed Drain Switch off leakage is going the beyond limit. In simulation measured value is -419 nA & 400 nA
2
Input Current
Enable pins & Address pins
-100
100
In TINA simulation and LT Spice simulation observed Input currents (Address and Enable line) is going the beyond limit. In simulation measured value is 500 nA & 2500 nA
3
Supply Current
Quiescent Supply current
-350
350
uA
In TINA simulation and LT Spice simulation observed Supply current (Standby current & Quiescent Current) is going the beyond limit. In simulation measured value is +/- 360 uA.
Standby current
May I know what is the issue?. Is this spice mode problem or any else issue? Do you have simulation and practical results? if possible can you share the simulation and practical results?