I bought the same 'Veroboard' and its ok but it won't take solder easily unless it's given a good clean with an abrasive. In the UK we had an electronics supply shop called Maplin and back in the day if you bought veroboard they would give you a vero cutter for free ! and was just a twist drill with a blue plastic handle, very cool ! Interesting I have the AD584LH and it came on a beautifully made PCB with SMA connectors for the outputs and was slotted to stop creep. This was about 10 years ago and it cost £15 from Amazon, now the 'L' version isn't on the modern datasheets at all (strange) and I too have seen them for sale at odd prices. I think we got lucky....cheers
These boards seem to have a coating on them, possibly rosin or something of that nature. They solder up nice as is, but time will tell. Yeah, I think we got lucky. When DigiKey or Mouser list a part as "available - contact for quote" they are generally not priced for the feint of heart.
Analog Devices stopped manufacturing the L variant in around 2012. Either someone in China has a MASSIVE stock of them, or some company bought a truckload then later sold them back to the 3rd party market when they couldn't use them, or they're remarked lower-grade parts, probably 90% of which are going to meet the L-spec in at least voltage tolerance, maybe not temperature coefficient.
Sounds spot on to me. I have tested mine the best I can and I used an HP34401A. So I'm gonna treat the chip with the respect it deserves and it seems worth !! cheers ivolo. @@ivolol
You have to remember that all the chips that are manufactured are planned to be high spec but under test they grade them so the process isn't optimised even now in 2023:)
I bought the same 'Veroboard' and its ok but it won't take solder easily unless it's given a good clean with an abrasive. In the UK we had an electronics supply shop called Maplin and back in the day if you bought veroboard they would give you a vero cutter for free ! and was just a twist drill with a blue plastic handle, very cool ! Interesting I have the AD584LH and it came on a beautifully made PCB with SMA connectors for the outputs and was slotted to stop creep. This was about 10 years ago and it cost £15 from Amazon, now the 'L' version isn't on the modern datasheets at all (strange) and I too have seen them for sale at odd prices. I think we got lucky....cheers
These boards seem to have a coating on them, possibly rosin or something of that nature. They solder up nice as is, but time will tell.
Yeah, I think we got lucky. When DigiKey or Mouser list a part as "available - contact for quote" they are generally not priced for the feint of heart.
I bought my boards many years ago so maybe they don't age well but the 584 is great !@@uni-byte
Analog Devices stopped manufacturing the L variant in around 2012. Either someone in China has a MASSIVE stock of them, or some company bought a truckload then later sold them back to the 3rd party market when they couldn't use them, or they're remarked lower-grade parts, probably 90% of which are going to meet the L-spec in at least voltage tolerance, maybe not temperature coefficient.
@@ivolol You might be right.
Sounds spot on to me. I have tested mine the best I can and I used an HP34401A. So I'm gonna treat the chip with the respect it deserves and it seems worth !! cheers ivolo. @@ivolol
24 / 5.000
The jk is good and very accurate
They are certainly good enough for most purposes.
I am actually surprised that in 2023 we can't get 1ppm voltage reference for like under £10.
I think it's probably because the best ones have such poor yield.
You have to remember that all the chips that are manufactured are planned to be high spec but under test they grade them so the process isn't optimised even now in 2023:)