aryajur
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Re: Current Mirrors
It is reported that in subthreshold Vth mismatch rises exponentially. I don't know what the reason is. Maybe the inversion charge is so less and at the surface due to surface states there may be variation in the fermi level position, causing the channel charge to vary which might be quite a lot percentage of the already less channel charge, thus causing a lot of mismatch.
It is reported that in subthreshold Vth mismatch rises exponentially. I don't know what the reason is. Maybe the inversion charge is so less and at the surface due to surface states there may be variation in the fermi level position, causing the channel charge to vary which might be quite a lot percentage of the already less channel charge, thus causing a lot of mismatch.