AnsweredAssumed Answered

Minimum phase difference AD8302

Question asked by pvjacques on Nov 25, 2011
Latest reply on Dec 7, 2011 by jdobler

We plan to use the AD8302 to measure the phase (few degrees, <5) of signals with different amplitudes in the 250kHz-25MHz range.  We need phase measurements with considerable precision;  ~0.1 deg.  Can we restrict the phase range of the AD8302 to be narrow (say 5-10 deg), but with high precision?  The default slope is 10mV/deg;  a 100-fold increase would be most desirable in order to discriminate the phase differences.


We are currently using a TSSOP-DIP adapter and a breadboard, in conjunction with a ucontroller, to verify if the AD8302 will meet our requirements.  Any suggestions as to how to implement an optimal arrangement will be appreciated.