1.8 volts (max)

[R Collins]

On Wednesday, May 8, 2019 at 3:40:55 PM UTC-4, Winfield Hill wrote:

John Larkin wrote...

The design and mask set costs for a bleeding-edge
chip is approaching a billion dollars.

And when I plunk down $600 for a 2066-pin X299
Intel CPU for my mobo, and know it's going to be
blisteringly fast, I'm making a contribution.

I would ask how much longer they give up on the massive bandwidth interfaces to the few other chips on the motherboard and just incorporate the memory and other logic on the CPU. What is still needed for I/O? I think the Ethernet could be done on the CPU along with all the USB interface functions leaving only the display and the various I/Os types for package I/Os. In other words, a PC on a chip.

But I know the answer to that one and it doesn't include an Intel CPU, it is based on an ARM.

--

Rick C.

-- Get a 1,000 miles of free Supercharging
-- Tesla referral code - https://ts.la/richard11209

 

[bitrex]

On 5/8/19 3:28 PM, John Larkin wrote:

On Wed, 8 May 2019 13:39:19 -0400, bitrex <user@example.net> wrote:

On 5/8/19 12:49 PM, John Larkin wrote:
On Wed, 8 May 2019 11:57:04 -0400, bitrex <user@example.net> wrote:

On 5/7/19 11:45 PM, John Larkin wrote:
On Tue, 7 May 2019 23:30:21 -0400, bitrex <user@example.net> wrote:

On 5/7/19 10:41 PM, John Larkin wrote:
On 7 May 2019 18:49:19 -0700, Winfield Hill <hill@rowland.harvard.edu
wrote:

A middle-of-the-bee-hive insert, my little I2C
sensor module has five sensor ICs, comprising 12
sensor channels. All running on 3.3-volts, so I
thought. Then my programming associate, reading
the datasheets more carefully than I, pointed out
one of the gas sensors was limited to 1.8 volts.

What!? 1.8-volts absolute maximum!? Sheesh!
Back to the drawing board, add six more parts.

Some FPGA and uP cores run at 1 volt, or even less.



A gentleman I know who works at Intel on portions of their most recent
designs would call 1 volt "high voltage"

0.5 volt, 200 amp switchers?



The core voltage of the latest 5 and 3nm feature-size processors under
development is probably significantly below 0.5 volts but specifics
isn't information they give out to anybodies

How can they distribute tens, or maybe hundreds, of amps on a chip?



Intel was using non-planar "3D" transistors in mass production as of the
22nm process, e.g. "FINFet."

https://semiaccurate.com/2011/08/18/intel-moves-transistors-from-2d-to-3d-and-more/

The 22nm process is pushing a decade ago, now, they're on to "Trigate"
and other topologies that again, my buddy cannot talk to me about and
possibly isn't even familiar with - he probably was barely old enough to
drive when that article was written! He does on-die cache memory
controller design/layout AFAIK that's all he does, Intel can afford to
super-specialize like that


The design and mask set costs for a bleeding-edge chip is approaching
a billion dollars.

He receives a small portion of that but there's apparently enough
independent creative design work delegated out to young engineers in
just working on a small area of the design of a new chip, that it's not
just a layout-jockey job where you're desperate to get away after two years.

 

[bitrex]

On 5/8/19 4:14 PM, R Collins wrote:

On Wednesday, May 8, 2019 at 3:40:55 PM UTC-4, Winfield Hill wrote:
John Larkin wrote...

The design and mask set costs for a bleeding-edge
chip is approaching a billion dollars.

And when I plunk down $600 for a 2066-pin X299
Intel CPU for my mobo, and know it's going to be
blisteringly fast, I'm making a contribution.

I would ask how much longer they give up on the massive bandwidth interfaces to the few other chips on the motherboard and just incorporate the memory and other logic on the CPU. What is still needed for I/O? I think the Ethernet could be done on the CPU along with all the USB interface functions leaving only the display and the various I/Os types for package I/Os. In other words, a PC on a chip.

But I know the answer to that one and it doesn't include an Intel CPU, it is based on an ARM.

The Xeon line already integrates Ethernet on a number of chips

 

[DSP newbie]

bitrex wrote:

A gentleman I know who works at Intel on portions of their most recent
designs would call 1 volt "high voltage"

Could well be. LTC6242 allows you to apply the extrahigh tension of
+/-5.5V only in the HV variant. Interesting times we live in.

Best regards, Piotr

 

[Phil Hobbs]

On 5/7/19 11:45 PM, John Larkin wrote:

On Tue, 7 May 2019 23:30:21 -0400, bitrex <user@example.net> wrote:

On 5/7/19 10:41 PM, John Larkin wrote:
On 7 May 2019 18:49:19 -0700, Winfield Hill <hill@rowland.harvard.edu
wrote:

A middle-of-the-bee-hive insert, my little I2C
sensor module has five sensor ICs, comprising 12
sensor channels. All running on 3.3-volts, so I
thought. Then my programming associate, reading
the datasheets more carefully than I, pointed out
one of the gas sensors was limited to 1.8 volts.

What!? 1.8-volts absolute maximum!? Sheesh!
Back to the drawing board, add six more parts.

Some FPGA and uP cores run at 1 volt, or even less.



A gentleman I know who works at Intel on portions of their most recent
designs would call 1 volt "high voltage"

0.5 volt, 200 amp switchers?

Back in the early '90s, I helped out with a Clark board (*) problem. It
had large copper angle iron bus bars: +3 and -1.6 (?) volts at 8000 amps.

Cheers

Phil Hobbs

(*) A very large, highly multilayer circuit board, half an inch or so
thick, used for holding and interconnecting thermal conduction modules
(TCMs) in IBM mainframes.

--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510

http://electrooptical.net
http://hobbs-eo.com

 

[bitrex]

On 5/9/19 8:10 AM, DSP newbie wrote:

bitrex wrote:

A gentleman I know who works at Intel on portions of their most recent
designs would call 1 volt "high voltage"

Could well be. LTC6242 allows you to apply the extrahigh tension of
+/-5.5V only in the HV variant. Interesting times we live in.

    Best regards, Piotr

1 volt is a kilomillivolt if you think about it!!

 

[John Larkin]

On Thu, 9 May 2019 14:10:00 +0200, DSP newbie <nomail@gmail.com>
wrote:

bitrex wrote:

A gentleman I know who works at Intel on portions of their most recent
designs would call 1 volt "high voltage"

Could well be. LTC6242 allows you to apply the extrahigh tension of
+/-5.5V only in the HV variant. Interesting times we live in.

Best regards, Piotr

Too many "analog" parts have absurdly low voltage limits.

I'm using the ADCMP572, a comparator that has an abs max supply
voltage of +6.

TI makes the rare fast sorta high voltage opamps.


--

John Larkin Highland Technology, Inc

lunatic fringe electronics

 

[Piotr Wyderski]

John Larkin wrote:

> Too many "analog" parts have absurdly low voltage limits.

It's a very good opamp, absurdly low offset for that GBW.
Nicely matches LTC1407 ADC with its VMAX=+4V.

Best regards, Piotr

 

[Clifford Heath]

On 10/5/19 2:03 am, John Larkin wrote:

On Thu, 9 May 2019 14:10:00 +0200, DSP newbie <nomail@gmail.com
wrote:

bitrex wrote:

A gentleman I know who works at Intel on portions of their most recent
designs would call 1 volt "high voltage"

Could well be. LTC6242 allows you to apply the extrahigh tension of
+/-5.5V only in the HV variant. Interesting times we live in.

Best regards, Piotr


Too many "analog" parts have absurdly low voltage limits.

I'm using the ADCMP572, a comparator that has an abs max supply
voltage of +6.

TI makes the rare fast sorta high voltage opamps.

If you want extreme speed and low power, you have to expect very small
thin channels and insulators. It sorta goes with the territory.

 

On Thu, 9 May 2019 09:59:21 -0400, Phil Hobbs
<pcdhSpamMeSenseless@electrooptical.net> wrote:

On 5/7/19 11:45 PM, John Larkin wrote:
On Tue, 7 May 2019 23:30:21 -0400, bitrex <user@example.net> wrote:

On 5/7/19 10:41 PM, John Larkin wrote:
On 7 May 2019 18:49:19 -0700, Winfield Hill <hill@rowland.harvard.edu
wrote:

A middle-of-the-bee-hive insert, my little I2C
sensor module has five sensor ICs, comprising 12
sensor channels. All running on 3.3-volts, so I
thought. Then my programming associate, reading
the datasheets more carefully than I, pointed out
one of the gas sensors was limited to 1.8 volts.

What!? 1.8-volts absolute maximum!? Sheesh!
Back to the drawing board, add six more parts.

Some FPGA and uP cores run at 1 volt, or even less.



A gentleman I know who works at Intel on portions of their most recent
designs would call 1 volt "high voltage"

0.5 volt, 200 amp switchers?



Back in the early '90s, I helped out with a Clark board (*) problem. It
had large copper angle iron bus bars: +3 and -1.6 (?) volts at 8000 amps.

Pretty sure it was +1.25 and -3.0. The ECL reference voltage was
ground.

Cheers

Phil Hobbs

(*) A very large, highly multilayer circuit board, half an inch or so
thick, used for holding and interconnecting thermal conduction modules
(TCMs) in IBM mainframes.