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Layout - unused pins

Question asked by amf on May 2, 2016
Latest reply on May 18, 2016 by emoloney

I am going to lay out a minimal board for the ADuCM350, primarily focusing on the AFE and SPI sections.  My AFE will be measuring a high-impedance sensor.  For minimizing coupled noise, what are your recommendations as far as un-used pins (i.e. leaving them floating vs. grounded, etc.)?  Also, for unused sections (e.g. the cap-touch sensor, the LCD, the USB, which have their own labeled power and ground pins) what do you recommend as far as connecting those sections'  power and ground pins and/or capacitors across them?

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