[sdiy] IC Temperature

Ian Fritz ijfritz at comcast.net
Thu Aug 6 22:28:19 CEST 2020


Has this been mentioned yet? Input leakage for FET input opamps increases very rapidly with T. Better watch that spec carefully!

> On Aug 6, 2020, at 1:34 PM, René Schmitz <synth at schmitzbits.de> wrote:
> 
> 
> On 05.08.2020 23:15, Mattias Rickardsson wrote:
>> 
>>> Thanks Matthias, I appreciate the reply and reassurance. Interesting 
>>> about the TL064, I've never heard of the chip before.
>> 
>> Oh, I thought the "precision" TL05x series were the unknown ones in the family. :-) (Does anybody use them?) The TL06x are the low-power ones, and the TL07x & TL08x are the twins separated at birth that nobody seems to know if they are identical or not.
> 
> I've used the 054 in the past. But it is difficult to justify that choice and the extra cost. 
> 
> There is another member of that family that I think nobody has mentioned so far. The TL03x. The "better" TL06x. Low power, lower offset. 
> 
> Much like the TL05x is to the TL07x. It think they were introduced at about the same time. 
> 
> 
> 
>>  
>> 
>> 
>> It's a bit annoying that op-amps often need much more current just to function internally than they deliver to the outer world even at full force and heavy load in our typical synth circuits. :-)
>> 
> Try tubes. :)
> 
> 
> 
> Best,
> 
>  René
> 
> 
> 
> --
> synth at schmitzbits.de
> http://schmitzbits.de
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