Game changer possibly? - Page 1
Forum section: electronics / testgear

author: Sighound36
author_rank: Frequent Contributor
timestamp: August 27, 2019, 08:19:01 am
content: Just dropped into my email box this morning form TIhttps://www.ti.com/lit/ds/symlink/adc12dj5200rf.pdfAn off the shelf 12 bit 8GHz ADC from TI wonder how long before this chip set is used in a commercial device?

author: maginnovision
author_rank: Super Contributor
timestamp: August 27, 2019, 08:31:14 am
content: At 3K a piece why NOT do your own asic and not be stuck with a part that may go EOL before you plan to stop selling the device?

author: Sighound36
author_rank: Frequent Contributor
timestamp: August 27, 2019, 08:39:38 am
content: Quote from: maginnovision on August 27, 2019, 08:31:14 amI love the replies on hereHowever I did not look at the cost, as you guys say over the pond 'HOLY COW' that's a serious price tag and I have sneaky suspicion you are correctThough the penny should have dropped when it the applications list was Electronic warfare (SIGINT, ELINT) which in manufcaturer speak is "Government's paying so think of a number, double it and add two noughts"

author: filssavi
author_rank: Frequent Contributor
timestamp: August 27, 2019, 08:59:24 am
content: Quote from: maginnovision on August 27, 2019, 08:31:14 amBecause not everyone is willing to spend milions designing, debugging and manufacturing their own ADC, especially given the frequencies at play and the power supply voltage levels everything seems to be pointing at a reasonaby modern process (i'd guess 45ish nm at most probably smaller) the mask set cost alone will be enough to buy few thousands IC's, and in the targeted market that could be a reasonable volume for the total production run.will we ever see this in a scope? i seriously doubt it but that doesn't mean it is useless

author: maginnovision
author_rank: Super Contributor
timestamp: August 27, 2019, 09:20:17 am
content: I wasn't implying it was useless just not a game changer. I don't think any oscilloscope manufacturer would use these. I'd love to see someone use one though, see if they could manage 8 ENOB for the scope. As far as ASIC costs look at Keysight. They use the same basic ASIC everywhere. They could never do that with this TI part, even 100 quantity the thing isn't much cheaper. Or look at Rigols new chipset it can go all over their new scope lines.This will probably have areas where it's a great option but not scopes. Time will tell if I'm mad.

author: Plasmateur
author_rank: Regular Contributor
timestamp: August 27, 2019, 01:42:22 pm
content: Quote from: maginnovision on August 27, 2019, 08:31:14 amHow much would the price come down if a manufacturer purchased these in bulk?

author: filssavi
author_rank: Frequent Contributor
timestamp: August 27, 2019, 02:06:26 pm
content: Well arguably this is an improvement of an already existing product, and as such it is nearly impossible for it to be really revolutionary, but that is the same for 99.99% of everything that is called innovative as very few product really change how a field/industry works...However scopes, are one of the few instrument where this is not really useful as the shifted volume is very large however oscilloscopes are by far the highest volume piece of equipment for the frequency band at hand (except maybe DMMs but that is beyond the point), so it is concievable that there are more niche use cases (expecially in the telecom space) where you wouldn't want to necessarily roll your own adcalso the pricing that us mere mortals can get on digikey/mouser is really not the same that a manufacturer can get through bulk pricing

author: tszaboo
author_rank: Super Contributor
timestamp: August 27, 2019, 02:19:32 pm
content: Quote from: maginnovision on August 27, 2019, 08:31:14 amThe price of everything is up to negotiation.They can slap a new code on the top of the device, disable some functionality, which makes it impossible to use in radios, and there you go, new scope ADC. New price.