[volt-nuts] Trimming the LTZ1000 tempco

Bruce Griffiths bruce.griffiths at xtra.co.nz
Thu Oct 6 07:12:48 UTC 2011

Andreas Jahn wrote:
> ----- Original Message ----- From: "m k" <m1k3k1 at hotmail.com>
> To: <volt-nuts at febo.com>
> Sent: Wednesday, October 05, 2011 8:45 PM
> Subject: Re: [volt-nuts] Trimming the LTZ1000 tempco
>> Looking at the data from various manufacturers of Zeners it seems 
>> that increasing the current makes the tempco become more positive.
> Hi  m k,
> But on my LTZ1000A the tempco is positive  around +50 ppm/K at nominal 
> current.
> So you would have to reduce the current. But this would increase noise.
> with best regards
> Andreas
Then you can easily trim the tempco as illustrated in the diagram taken 
from  the bottom of page 6 of the current datasheet.

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