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Voltage amplifier- DAQ

Discussion in 'General Electronics Discussion' started by Mauro, Apr 10, 2013.

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  1. Mauro

    Mauro

    1
    0
    Apr 10, 2013
    Hello all:

    I have a small project but I have some issues and need some help.

    A sensor creates a voltage diff between 0-15mV. I want to use a DAQ from National

    Instruments http://sine.ni.com/ds/app/doc/p/id/ds-218/lang/en

    However, the minimum input is ±1V.

    How I can amplifier the voltage to match with the minimum input for DAQ?

    I have read some info about op amp, Could you help me with some basic concepts to fulfill my project?

    Oh, this is the sensor: http://s.campbellsci.com/documents/us/manuals/li200x.pdf

    Thanks.
     
  2. BobK

    BobK

    7,682
    1,688
    Jan 5, 2010
    An opamp is definitely the way to go. Google opamp non-inverting amplifier. All you need is two resistors to set the gain. If you want to use a single supply, be sure to get an opamp with rail-to-rail inputs and outputs.

    Bob
     
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