Can a single single supply op amp be used as a summing circuit?

Oct 07, 2009 55 Replies

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As I've said elsewhere, we don't know what Andrew had in mind. Choosing a +5V rail for his single rail system does make the problem complicated enough to be marginally interesting.

As it was when I was working on 4-20mA stuff at George Kent in Luton, back in 1973-6.

-- Bill Sloman, Nijmegen

:

That's a no. You can't put up. so shut up.

-- Bill Sloman, Nijmegen

I don\'t accept challenges from lightweights, and I _choose_ to do neither. If that pushes you toward apoplexy, then so be it.

Just what one would expect from you, hyperbole instead of fact.

Thanks so much for providing ample data for a troll-feeder filter.

| James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC\'s and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 |

Thanks so much for providing ample data for a troll-feeder filter.

| James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC\'s and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 |

Don\'t you delight in seeing the trolls brought to their knees? I do, and we\'ve seen a lot of them turn tail when dispatched through sed. Unusually spoiled brats who\'ve never been disciplined are the bane of our existence in this world and should be given their comeuppance as soon as they rear their ugly heads. It\'s not always an easy task since some of them are smart, like Sloman, and his parents were, apparently, unable to deal with him, so it lies on us to apprise him of his failings and, ergo, to help him become a better human being and the world a better place.

Personally, I think Slowman is mentally ill. His life is built around bickering with people he can suck in here. If everyone ignored him he'd probably commit suicide ;-) ...Jim Thompson

| James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food.

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Wow. Chicken-s*it with pretensions.

And delusions of significance.

John Fields does suffer from delusions of adequacy. Here he is posing as a psychologist, and looking even less convincing than he does when he poses as an electronic engineer.

-- Bill Sloman, Nijmege

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Jim-out-of-touch-with-reality-Thompson also thought that that I was some kind of terrorist, whose "dangerously anti-American" opinions were threatening enough to justify reporting me to the FBI.

-- Bill Sloman, Nijmegen

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Hear, Hear, and good riddance.

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=A0 =A0...Jim Thompson

The brown-nosed chorus.

-- Bill Sloman, Nijmegen

It's just riveting when the S.O.G. [1] and the T.O.G. [2] engage. Sort of like the 45th viewing of a slow motion film of sloths doing battle.

John

  1. Senile Old Git

  1. Tedious Old Git

Caught in the Filter Test Folder... it's working to my satisfaction, so you will be ignored henceforth ;-) So happy to note that I can now aggravate Larkin just as easily as Slowman ;-) Larkin's first sign of senility is persistently trying to be an asshole when he is realy nothing more than an amateur.

His second sign of senility is touting his company's wonderful circuit designs as his own, while posting amateur crap on S.E.D

The third sign is acting like Polly Prissypants :-)

| James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 |

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=A0 =A0 =A0...Jim Thompson

Jim thinks he aggravates me, when I'm just laughing at his errors. This lot is pretty good - Jim knows remarkably little about senility (which isn't all that surprising, since he is the renaissence man of ignorance) and seems to think that personality defects are evidence of senility.

Sadly, it's all about short term memory, and there doesn't seem to be much wrong with John Larkin's short term memory - he can remember all sorts of interesting facts, though he doesn't understand them as well as he might.

But he doesn't seem to have reported anybody to the FBI for having dangerously anti--American opinions,

Unlike Jim, who thinks that the MC4014 and MC4044 were wonderful circuit designs.

As opposed to hoping for violent revolution so that he can shoot everybody who is less right-wing than he is?

-- Bill Sloman, Nijmegen

Late at night, by candle light, Jim Thompson penned this immortal opus:

And you're a pro at that, if nothing else.

- YD.

Remove HAT if replying by mail.

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