Re: [buildcheapeeg] Low-leakage diodes

From: Joerg Hansmann (info_at_jhansmann.de)
Date: 2002-01-11 16:27:22


Hi ,

----- Original Message -----
From: sleeper75se <sleeper75se_at_yahoo.se>
To: <buildcheapeeg_at_yahoogroups.com>
Sent: Friday, January 11, 2002 12:03 PM
Subject: [buildcheapeeg] Low-leakage diodes

> Hello,
>
> I got a response to my mail

They are really fast...

> to Linear about those FET-diodes.
> The most interesting part is the links to manufacturers of low-
> leakage diodes.
>
> /Andreas
>
> Forwarded message:
>
> Hello Andreas:
>
> 1) Yes, there should also be two 2N4393's to Vee.

So the datasheet was wrong in respect to the protection circuit.

In the LT1167f datasheet on page is written:
"...
Information furnished by Linear Technology Corporation is believed
to be accurate and reliable.
However, no responsibility is assumed for its use.
..."

Obviously with good reason...

This has not been the first error in datsheets I have encountered
and it will not be the last. So it is always a good idea to
countercheck information if something seems to be obscure...

...
> If you want to use low series resistors AND you want low leakage,
> then you shold add a low leakage diode. Central Semiconductor makes
> some (the CLL3595 and the CMPD3003 for example). Leakage
> approximately doubles every 10 degrees C.
> http://www.centralsemi.com/
>
> Vishay also makes several low leakage diodes.
> http://www.vishay.com/brands/siliconix/SSFsglld.html

... interesting

Regards,

Joerg



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