amplifier help please

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paul200

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I have a sensor that outputs a range of +/- 0 to 5 volts
I need to convert this to protional range of +/- 0 to 10 volts
 
There's no programming involved?.

But I would suggest you give far more details of EXACTLY what you are trying to do, instead of what you think you need.
 
I am building a 3 axis gyro stabalised camera.

I have a spark fun gyro which outs a max of +/- 3 volts.
My servo amplifier needs a +/- 10volts.
 
That site is just the one in my signature, and NOT a reply to you, don't you know what an opamp is?.
 
Yes I do know what op amp is. I need to know which type?

I thought you were pointing me to a web link sorry.
 
paul200 said:
Yes I do know what op amp is. I need to know which type?
Click to expand...

I wouldn't have thought it matters much, it should be a pretty easy task - but without exact details it's impossible to advise.
 
paul200 said:
Because the input voltage will be either a plus or minus value I didnt think a 741 would do
Click to expand...

Almost any opamp will, they work from split supplies and with signals either side of zero.
 
looking at 741 circuit diagrams the all show input terminals marked as plus and minus.

this is why I posted because the positve terminal will be a minus value some of the time
 
paul200 said:
looking at 741 circuit diagrams the all show input terminals marked as plus and minus.

this is why I posted because the positve terminal will be a minus value some of the time
Click to expand...

All opamps are marked like that, they aren't positive and negative, they are non-inverting and inverting.

When I asked if you knew what an opamp was, you lied didn't you?
 
why do you say I lied.

there is plenty of info on op amps but did not answer my particular question.
I have built several op amps for different projects.

I came to this site for help not to be called a lier
 
paul200 said:
why do you say I lied.
Click to expand...

Because the absolute most basic thing about an opamp is the inverting and non-inverting inputs - and you didn't know that!. Presumably all you 'know' about opamps is that they are little plastic squares with a number of legs?.

Try doing a google on 'opamp tutorial' or '741 tutorial', which will give you enough knowledge to do what you want!.
 
paul200 said:
why do you say I lied.

there is plenty of info on op amps but did not answer my particular question.
I have built several op amps for different projects.

I came to this site for help not to be called a lier
Click to expand...


I think they really wanted to help you but they also need the DETAILS from you...I also see that you are so serious about this...Anyone can help????
 
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