Voltage Amplification

LM324 quad op amp is user friendly, cheap, rugged, can be run on single rail.

NS have good application notes.
Dunno why you mention rectifier? Is your signal AC....? Do you want to design/build something or use something 'off the shelf'.

The more info' you give us, the better the answers you get back.

Del

Del, I would not suggest the 324 as its offset voltage referred to the input is about as much as the maximum signal voltage. So the output (without any offset compensation) would in the worst case show already some volts (provided a gain of V = 1000) with a signal of zero and the full scale error might become far more than 100%. Even with OS-compensation the drift specs are lousy.

So I would also prefer something like Mikey suggested.

If the bandwith requirements are low there are very cheap "zero offset" Designs. One of them is the OPA335 from Texas Instruments which has a max. offset of 5µV and a drift of 0.05µV/K.

Regards Uwe

Just want the reading in Volts?

Erase the "m" from your display or if analog write "volts" on the meter scale.

Rectifier? only if it is AC that you have, and you have a DC display system. (but this is not a 1:1 ratio.)

That's all!

Wangito.

It would be one more very cheap and useful instrumental amplifier for any hazardous conditions http://www.analog.com/en/prod/0,,759_782_AD620%2C00.html

asishonline2000:

Unless this is a science fair project go to AGM in Tucson AZ. they can do just about anything in V in to a number of out puts isolated or not www.agmelectronics.com

I have used them for years and with good outcomes they have a 7 year warranty that is nice to.

FYI I used to "brew" my own a lot too, but it just does not make good sense in most cases I now reserve my "home brew" for stuff no one else can or will do.

Jon