gbugh
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I'm trying to design a varactor stack like figure 2 (d) here:
**broken link removed**
and I'm getting confused by a varactor's typical reverse leakage current rating.
I've found varactors with only 20nA leakage but it seems like even that would forward bias one of the diodes.
It seems like, no matter how small the leakage current is, it would still be enough to forward bias one of the anti parallel diodes, which would defeat the purpose of the diodes to provide a high impedance bias connection. Or am I wrong about that?
How do people make this work?
George
**broken link removed**
and I'm getting confused by a varactor's typical reverse leakage current rating.
I've found varactors with only 20nA leakage but it seems like even that would forward bias one of the diodes.
It seems like, no matter how small the leakage current is, it would still be enough to forward bias one of the anti parallel diodes, which would defeat the purpose of the diodes to provide a high impedance bias connection. Or am I wrong about that?
How do people make this work?
George