Hello, I have a 0 - 5V signal and I want to scale it to 1 to 5V. With dual supply op amps, this would be easy, using a summer and an inverter. But I don't have dual supplies available, so all I have is one positive supply. Is there any way to create Vout = 0.8*Vin + 1?
What is your point in replying? Why take the time to post at all if you have nothing to add? I post questions because I am looking for answers. Perhaps you can explain how a voltage divider circuit can create a voltage offset, as opposed to simply a voltage scaling.
The gmail (non)intellectual level ;-) ...Jim Thompson
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| 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 |
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--- I agree, plus some of the arrogant spoiled brat google groupers think that the world owes them a living.
Case in point, what's-his-face posted, when he ran out of rope:
"What is your point in replying? Why take the time to post at all if you have nothing to add? I post questions because I am looking for answers. Perhaps you can explain how a voltage divider circuit can create a voltage offset, as opposed to simply a voltage scaling."
It's as if, he thinks, even though it's all been explained to him, time and time again and he doesn't understand it, it's his teachers' fault that he's stupid.
--
| 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 |
We right-wing conservatives go so far out of our way to be polite
that we couldn\'t possibly deign to use such words as "ignorant" or
"yellow-belly" or "wuss". Instead, to keep everything warm and
fuzzy, we substitute the politically-correct synonyms "leftist
weenie" or "liberal" or "Democrat" ;-)
Bwahahahahahahaha! You finally sucked Slowman in with enough rope that he not only hanged himself but pulled out his tongue as well ;-) ...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.
The OP wanted a 1V offset. This requires some kind of reference voltage - V2 in my circuit.
You can use a power supply rail as a reference voltage; power rails are rarely tightly specified, and they tend to be noisy. Your customers are obviously pretty undemanding - they wouldn't be your customers otherwise - but the people I've worked for have been into joined-up words and stable offsets.
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