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unable to erase mode controll register of AD664

Question asked by AshokMajee on Jul 30, 2011
Latest reply on Aug 29, 2011 by AshokMajee

Dear Sir,


I am using AD664 , 4-channel DAC.


duriing first time power on 4 -channels are  was unipolar (default sets) .


Testing purpose i changed all bipolar to unipolar by writting mode register 0xFFX.


Now i need to  change return back to all unipolar .


its not happening , i am applying reset pulse . but did not restore default condition.


reset pulse is it required min 80 ns to 100 ns ?


can some one suggest me how way can i get unipolar setting again.