Using AD2S1210 to control a resolver 400Hz 60V

Vivek,

The suitability of the AD2S1210 will depend upon the resolution requirement you have as this effects the bandwidth of the RDC.   

The other thing that could be a challenge is the output driver stage design required to generate the 60V and the corresponding  RDC input signal conditioning you'll have to design to transform the output signals from the resolver into the input range of the AD2S1210.

The following circuit note is a good reference, however not exactly what you're looking for, which should help you with your decision.   

https://www.analog.com/en/design-center/reference-designs/circuits-from-the-lab/CN0276.html

I will note that if your end goal is for an aviation product we do offer the AD2S1210 in our Enhanced Product flow (EP).

Hope this helps.

Sean

Hello,

Ok but Is it possible to use a separeted sinewave generator and only use the AD2S1210 as a position converter (use only SIN & COS inputs) ? Because AD2S1210 isn't able to generate 400Hz signal on EXC pins...

I have to acquire a 400Hz RDC too but the AD2S80xx (whitch is 400Hz capable)  are now obsoletes ! 

I have already used both of them with success. Projets with AD2S80 with a 400Hz RDC & AD2S1210 with 2.5Khz RDC...

Thankyou.

AVK31,

The AD2S1210 as designed did not account for an external excitation source option and thus would not have the engineering rigor to guarantee; further I'm not sure the internal filtering would accept a 400Hz carrier..   However, there are a couple of options for you to look at AD2S80A and AD2S83 which both will accept external excitation in the 400Hz range.  The AD2S80A is listed as not recommended for new designs but I can get more information on supply chain resiliency looking forward for you if that option works.

Sean