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Quote from: Muxr on June 19, 2017, 06:08:12 amThere is also this AD588 board.. http://www.ebay.com/itm/111840217453?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AITIt appears to have better tempco than the best AD584 reference I have.Lets see....AD588BQ:Digikey - $49 Qty 100Mouser - $47 Qty 100Completed board eBay from China - $14 Qty 1Yah... instills trust...Not.
There is also this AD588 board.. http://www.ebay.com/itm/111840217453?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AITIt appears to have better tempco than the best AD584 reference I have.
Ok, but then we can't assume these tests characterise the manufacturer part, these tests only characterise a particular salvaged part, who knows how much abuse it handled, if it was a production reject, a test part, or still can be a fake.
The only thing is, it requires both a +17V and a -17V rail.
Quote from: Muxr on June 19, 2017, 06:08:12 amThe only thing is, it requires both a +17V and a -17V rail.With 16V rated capacitors
Quote from: Bud on June 20, 2017, 01:30:23 pmOk, but then we can't assume these tests characterise the manufacturer part, these tests only characterise a particular salvaged part, who knows how much abuse it handled, if it was a production reject, a test part, or still can be a fake.There is no free lunch. As you put it the brand new part alone costs way more (in both cases AD584 brand new off mouser is $60 just for the part as well). So there is definitely a catch to these ~$15 references from China.
oops, that's actually my bad. I was thinking of my own prototype reference, the one from China does have 16V rated caps but it requires +15V/-15V.
Quote from: Muxr on June 20, 2017, 03:34:07 pmoops, that's actually my bad. I was thinking of my own prototype reference, the one from China does have 16V rated caps but it requires +15V/-15V.But one of the set of caps is in front of the linear regulators, with room for the drop out you'll exceed the 16V.
For anyone who has one of these units how have these "Recycled" units been holding up?
Ouch! That makes me feel a bit guilty about the tube of 6 unused AD588BQs I scored on ebay a couple of years back for £9.50 including postage. It was genuine UK seller who clears out old production line stores. I think we were both rather surprised when no one else bid! There is still the odd legitimate bargain out there if you keep your eyes open. You guys in the US seem to have it easier in that respect.
Ouch! That makes me feel a bit guilty about the tube of 6 unused AD588BQs I scored on ebay a couple of years back for £9.50 including postage.
Quote from: Gyro on June 20, 2017, 03:50:45 pmOuch! That makes me feel a bit guilty about the tube of 6 unused AD588BQs I scored on ebay a couple of years back for £9.50 including postage. It was genuine UK seller who clears out old production line stores. I think we were both rather surprised when no one else bid! There is still the odd legitimate bargain out there if you keep your eyes open. You guys in the US seem to have it easier in that respect.I'm assuming you have plans for those chips and couldn't be persuaded to part with one?
Damn, BU508A scored better spec ones!
Edit... Oops, No I did put BQ in my original post didn't I. Mine are definitely JQ.