741 DC amp how to connect

[Craig]

I just want to use the 741 as a simple dc amplifier, for example conecting a
sensor that generates a very small voltage, milivolts.

If I conect the sensor to the + and - inputs of the 741 and earth the
negative input to the power supply rail, that will give me a amplified
output from the 741, is this correct?

I could hook up a simple circuit obtaining maxium gain by using this
method, without any components?

Thanks Craig

 

[Mike Harding]

On Tue, 7 Oct 2003 00:53:41 +0800, "Craig" <craigu238@hotmail.com>
wrote:

I just want to use the 741 as a simple dc amplifier, for example conecting a
sensor that generates a very small voltage, milivolts.

If I conect the sensor to the + and - inputs of the 741 and earth the
negative input to the power supply rail, that will give me a amplified
output from the 741, is this correct?

I could hook up a simple circuit obtaining maxium gain by using this
method, without any components?

Google, Google and Google

op amp basics - returns a heap of hits

Mike Harding

 

[Phil Allison]

"Craig" <craigu238@hotmail.com>

I just want to use the 741 as a simple dc amplifier, for example conecting
a
sensor that generates a very small voltage, milivolts.

** What sort of sensor ? Piezo electric?

If I conect the sensor to the + and - inputs of the 741 and earth the
negative input to the power supply rail, that will give me a amplified
output from the 741, is this correct?

** No.



.......... Phil