M
Martin Griffith
- Jan 1, 1970
- 0
Fig 4 on page six, the unity gain thd looks a bit strange, for a +-
15v rail
Anyone tried one of these little beasts?
Martin
15v rail
Anyone tried one of these little beasts?
Martin
Fig 4 on page six, the unity gain thd looks a bit strange, for a +-
15v rail
Not in this NG"Martin Griffith"
** 100% STALE NEWS !!!!!!!!!!!!
Phil Hobbs has done this piece of dumb trivia to death already.
....... Phil
Not in this NG
sci.electronics.design
Your search - opa211 - did not match any documents
I should have known that I should have searched for"Martin Griffith"
"Phil Allison"
** Yes, right here on October 11 - you dim witted, PITA fool.
** No - your dumb search was 100% defective: snip s,
Phil Hobbs
** So - **** off
- you copycat TROLL.
..... Phil
"Phil Allison"
I should have known that I should have searched for
"Maybe the universe has always been like this..."
rather than OPA211.
really that often, really.......honest
Martin said:Phil Allison
I should have known that I should have searched for
"Maybe the universe has always been like this..."
rather than OPA211.
You too can be a bit of an idiot at times, just occasionally,
not really that often, really.......honest
BTW>>>Phil Hobbs has done this piece of dumb trivia to death already.
Not a single reply..... and it should be Mr. Phil Hobbs,
Your search - opa211 hobbs - did not match any documents."Martin Griffith"
( snip copy of Phil Hobbs Oct 11 post on SED )
** A search using "opa211" and specifying SED gets one hit - Phil Hobbs
post on Oct 11.
YOU stuffed up - fool.
** Piss off - wanker.
...... Phil
Your search - opa211 hobbs - did not match any documents.
So you are blaming me that google is not exactly perfect?
Have a good night, bye, (and you use too much white space)
The f/b link is not for tech stuff, only wrong sort of font stuffYeah, I'd like to see what was said in that abse discussion. But
whatever it was, it seems clear that dasheet plot can't be relied
upon. And I have no idea, Martin, how your mild question set off
the bomb. OK, I went and looked; here's the done-to-death thread
(I know you've already read this, but others might like to see it,
and the abse threads aren't archived):
* Phil Hobbs:
Gents,
As I was helping someone with a TIA design this afternoon, I had
occasion to read the data sheet for the OPA211, which appears pretty
similar to the LT1028, except that it's a bit more stable and doesn't
come in a plastic DIP. It has a curve of THD+noise vs rms output
voltage that I found very odd (see attachment).
Everything goes swimmingly until the signal swing on the inputs
reaches
about 1V rms, and then it hits the wall. This is at a kilohertz, mind,
so it isn't an ordinary slew rate issue. It's also _way_ within the
CM range, because the plot specifies +- 15V supplies.
Since the problem surfaces at the same input voltage swing makes it
look like something in the input stage, but what in the world could
be as slow as that?
So what's up with this amp?
* John Larkin:
That graph makes no sense whatever.
If the numbers were different, I'd say that some input back-to-back
diodes were conducting... but not at 1 KHz. Also, fig 3 sort of
contradicts fig 4. 140 dB is an interesting number, too.
Is it an artifact of the test circuit, fig 41?
If you figure it out, let us know.
* Phil Allison:
** Nothing - Fig 4 is just plain wrong.
Read the text where it states THD < 0.0001% when G = 1 and
output level = 3 volts rms.
* Fred Bartoli:
It seems they nicely screwed the DS there.
Not only the G=+1 curve is, ahem, a bit off, but it seems the G=+11
curve could the G=+1 one: the G=11 curve shows 0.15ppm@3V, which is
the stated figure for the G=1 case.
They have a documentation feedback link in the page footer and I
just sent feedback. Let see what they say...
Thank you Win for the copy, none of that showed up on my NG reader or
in abse. I'll dig out LT1028 in the morrow
But should I apologise to Phil? This could be a first in SED?
YOU are one dumb shithead.
YOU are one dumb shithead.
** **** off - you BLOODY IDIOT .
http://groups.google.es/groups/search?hl=en&q=phil+hobbs&qt_s=Search....... Phil
http://groups.google.es/groups/search?hl=en&q=phil+hobbs&qt_s=Search
did not return much,
You still use too much white space.
Martin said:On Fri, 19 Oct 2007 15:20:52 -0700, in sci.electronics.design Winfield
So - **** off
The f/b link is not for tech stuff, only wrong sort of font stuff
Thank you Win for the copy, none of that showed up on my NG reader or
in abse. I'll dig out LT1028 in the morrow
But should I apologise to Phil? This could be a first in SED?
Martin
Martin said:http://groups.google.es/groups/search?hl=en&q=phil+hobbs&qt_s=Search
did not return much, please take your meds. It's probably Google
redirecting .com to .es domains, and don't take sed so seriously.
You still use too much white space.
Martin
Sign up to my server, 500$US or 10€ a year, it's just not there,90 day"Martin Griffith"
** That is *very* hard to swallow.
Such an obscure issue, never mentioned on SED or ABSE prior to Phil Hobbs'
posts, somehow gets " independently discovered " by another poster only 7
days later.
Amazing ....
....... Phil
Sign up to my server, 500$US or 10? a year, it's just not there,90 day
retention, AFAIR, just one message, the original, by Mr. P.H, and I
could not find it through google.es,
so can we please call this sillyness to an end.
And the idea that *only* 2 english speaking people notice a problem in
the same datasheet, independantly, and queried it, within a week is
not unknown.
I should have thought it would be more.
. I wonder if there's a Northern Hemisphere Phil Allison?
Cheers,
Phil Hobbs
Winfield said:Yeah, I'd like to see what was said in that abse discussion. But
whatever it was, it seems clear that dasheet plot can't be relied
upon. And I have no idea, Martin, how your mild question set off
the bomb. OK, I went and looked; here's the done-to-death thread
(I know you've already read this, but others might like to see it,
and the abse threads aren't archived):
* Phil Hobbs:
Gents,
As I was helping someone with a TIA design this afternoon, I had
occasion to read the data sheet for the OPA211, which appears pretty
similar to the LT1028, except that it's a bit more stable and doesn't
come in a plastic DIP. It has a curve of THD+noise vs rms output
voltage that I found very odd (see attachment).
Everything goes swimmingly until the signal swing on the inputs
reaches
about 1V rms, and then it hits the wall. This is at a kilohertz, mind,
so it isn't an ordinary slew rate issue. It's also _way_ within the
CM range, because the plot specifies +- 15V supplies.
Since the problem surfaces at the same input voltage swing makes it
look like something in the input stage, but what in the world could
be as slow as that?
So what's up with this amp?
* John Larkin:
That graph makes no sense whatever.
If the numbers were different, I'd say that some input back-to-back
diodes were conducting... but not at 1 KHz. Also, fig 3 sort of
contradicts fig 4. 140 dB is an interesting number, too.
Is it an artifact of the test circuit, fig 41?
If you figure it out, let us know.
* Phil Allison:
** Nothing - Fig 4 is just plain wrong.
Read the text where it states THD < 0.0001% when G = 1 and
output level = 3 volts rms.
* Fred Bartoli:
It seems they nicely screwed the DS there.
Not only the G=+1 curve is, ahem, a bit off, but it seems the G=+11
curve could the G=+1 one: the G=11 curve shows 0.15ppm@3V, which is
the stated figure for the G=1 case.
They have a documentation feedback link in the page footer and I
just sent feedback. Let see what they say...
** So yo have ZERO comprehension of probability.
Probably, but you are such an easy wind-up.....-)....... Phil