06-29-2010 11:20 AM
I am wondering aboout the pseudodifferential an differential inputs of the PXI-4461
I am doing measurements on switch mode amplifiers where the outputs are bridged and not really ground (PGND) referenced. The input is ground (AGND) referenced to a 5V section. Due to switching currents, AGND and PGND can fluctuate relative each other.
I understand that the pseudo-differential inputs means the inputs are decoupled from ground and therefore suitable for common mode noise reduction. Differential are fully differential per input.
Thanks
06-30-2010 07:36 PM
I believe the information in this link would be helpful: Pseudodifferential versus Differential Input Configurations