We are not using the mid current range output. What do I tie its power supplies to ?

Question

We do not plan to use the mid current range output (the 500mA port). What should I connect HCAVDD2 and HCAVSS2 to ? GROUND or leave them floating ? or should I make something like two 10K ohm voltage dividers to 50% of AVDD and AVSS ? that is supplying a bias voltage, but little current.

MacManato · Accepted Answer

Thanks, PaulCA for moving this. 
 Hi, KevinF. 
 Thanks for your interest in AD5560. Though you are not using the 500mA Range, it is recommended to jus tie it to the same level as AVDD and AVSS, or it can go lower for as long as it meets the AD5560 supply requirements. We ran into some issues in the past when we left HCAVDD and HCAVSS floating so we are not recommending that. 
 
 Thanks, Mac)

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We are not using the mid current range output. What do I tie its power supplies to ?

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