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AD5123 ±6 dB Increment and Decrement Instructions

Question asked by Jacky-chen-2 on Jan 28, 2014

Dear All:

I am very confused AD5123 datasheet Ver.A page 22 "±6 dB Increment and Decrement Instructions" have "± 6 dB" and the actual resistance value conversion formula provide to me? For example:I select AD5123BCPZ10-RL7 (10 kΩ resistance) then 128 Position. So 1LSB=78.125Ω another add ±8% resistor tolerance: calculated total resistor range is 71.875Ω ~ 84.375Ω "Coupled with "±6 dB Increment and Decrement Instructions" At this point the resistance value would it be?

 

Best Regards,
Jacky


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