[sdiy] BS170, low leakage

[Czech Martin]

The datasheet says: input : 24pF, output 17pF.
I think that this is not too excessive.

m.c.

-----Original Message-----
From: Ian Fritz [mailto:ijfritz at earthlink.net]
Sent: Dienstag, 28. Januar 2003 15:20
To: Czech Martin; synth-diy at dropmix.xs4all.nl
Subject: Re: [sdiy] BS170, low leakage


At 07:04 AM 1/28/2003, Czech Martin wrote:
>I just tested the D-NMOST BS170.
>
>The objective was to find a low input leakage device.
>This comes handy for several applications where
>very little currents are involved.
>
>
>The BS170 drain source leakage is higher, about 1nA, but there
>are circuits to cure this.
>
>So perhaps the BS170 is a good device for switching current
>mirrors etc.


Interesting.  What kind of capacitance does it have?

   Ian