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Maxim DS8500 HART modem

Message posted by Axel Norman (axel.norman@gmail.com : 90.149.184.211) on 01 December 2009 at 09:37:34.

Hi
I'm currently designing a sensor with 4-20mA HART interface and I'm trying to decide the best HART modem. The new DS8500 seems to have quite a few advantages over other modems such as HT2015. (Digital filtering, fewer external components etc)

Is DS8500 the best choice of HART modem?

The datasheet has a very poor typical circuit. Does anyone have an example circuit shoing the values of all external filter components?


Thanks
Axel



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