Hi!
I'm looking for a schottky diode (Vd<0.5V) that has a high "off-state" resistance (in the range of 10GΩ). I need this because I am passing a AC signal through a diode at low frequencies and charging up a small capacitor (≈1pF). The AC isn't rectifying through the diode as the capacitor is too small for the low frequency signal and it discharging through the diode during each cycle. I cant increase my capacitor value so I'm thinking I'll change the charge time RC and increase R. Is there any such diode that exists commercially?
Thanks
Rachel
I'm looking for a schottky diode (Vd<0.5V) that has a high "off-state" resistance (in the range of 10GΩ). I need this because I am passing a AC signal through a diode at low frequencies and charging up a small capacitor (≈1pF). The AC isn't rectifying through the diode as the capacitor is too small for the low frequency signal and it discharging through the diode during each cycle. I cant increase my capacitor value so I'm thinking I'll change the charge time RC and increase R. Is there any such diode that exists commercially?
Thanks
Rachel