mds07
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Dear members,
I have simple inverted with input falling & output rising. I am measuring the delay between i/p fall to 50% to output rise to 95% of supply.
The problem is, o/p is not falling below 95% (due to leakage) in previous cycle when i/p is kept floating.
particularly at low voltage low temp PVTs - (I am forced to keep threshold at 99% for such PVTs).
So the measurement is failing.
I want do something that it will automatically measure 90% of recovery (w.r.t. to supply) from the lowest point the o/p reached during previous cycle (when i/p was floating).
Regards,
I have simple inverted with input falling & output rising. I am measuring the delay between i/p fall to 50% to output rise to 95% of supply.
The problem is, o/p is not falling below 95% (due to leakage) in previous cycle when i/p is kept floating.
particularly at low voltage low temp PVTs - (I am forced to keep threshold at 99% for such PVTs).
So the measurement is failing.
I want do something that it will automatically measure 90% of recovery (w.r.t. to supply) from the lowest point the o/p reached during previous cycle (when i/p was floating).
Regards,