My input signal should be ~ 800 mVp.
The output range of DAQ card is +- 10Vp.
By adding a resistor net that devide the signal the DAQ card out put can be 8 Vp and the input to the test object still be 800mVp.
Then the internal converting from D/A utalize the total range and produce less distortion in the test result.
Measureing range is 200 Hz - 10 KHz
Is there a better way? Also adding a low pass filter?
What type of filter is built in the 6221 after the DAC?
