Hi!Welcome to my DIY audio forum.CheersPer-Anders Sjöström
Started by qusp, December 06, 2009, 09:25:45 PM
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Quote from: qusp on December 06, 2009, 09:25:45 PMalso I had to grab some 5% resistors as digikey did not carry all the values needed in the 1% .6w, will this cause me issues, most likely would surface in the form of noise right?? i'll be working till I find the right values and then replacing the vital points with vishay S102 or Z102 for lowest noise eventually
Quote from: peranders on December 07, 2009, 02:30:07 PMI have experimented with 3.3 V out but I haven't tested it particularly much.
QuoteWhat is did was this:Reference set to 2.5 V
QuoteGain set to 1.32
QuoteThe opamp was fed after the prereg, appox. 6 V
QuoteThe DZ1 was a red LED
QuoteThe opamp should be a rail-to-rail type or at least be able to handle the common mode voltage you have here. I used an AD825 (if I remember correctly) and it is specified to work at more than 9 volts.If you try a 10-15 V/us opamp you should very much likely succeed but a AD825 or similar could be tricky.
Quote from: qusp on December 07, 2009, 08:44:13 PMlol, yeah ok of course :? ; looking at the wrong part, I have all of them open in excel. cool ok, like I said I have pretty much all the parts for all the configurations, so i'll work something out. i've got some smd lt1763 1.2v too, but thats no good in this package. anyway i'll report back when i find some time to start and have a few more parts here.
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