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AD7779 question

Question asked by on Jun 6, 2016
Latest reply on Jun 22, 2016 by musach

HI,this is my application-SPI mode.

My input signal can be 220mVpp,and use TRUE-DIFFERENTIAL mode.

When i read from DOUT0 DOUT1 DOUT2 DOUT3,i found that,there always be CH0-AINP undervoltage error,CH0-AINM undervoltage error.

How can i deal these errors?

Or something wrong with my application?