<![CDATA[Can the fipy handle transient spikes of -0.5V on the analog pins?]]>Hi,

Can the fipy handle transient spikes of -0.5V on the analog pins?

I am using a voltage divider and a diode for protection but occasionally it goes to negative half a volt and I couldn't see in the documentation whether it could handle that?

]]>https://forum.pycom.io/topic/4390/can-the-fipy-handle-transient-spikes-of-0-5v-on-the-analog-pinsRSS for NodeSun, 12 Apr 2026 16:11:50 GMTFri, 15 Feb 2019 05:05:34 GMT60<![CDATA[Reply to Can the fipy handle transient spikes of -0.5V on the analog pins? on Fri, 15 Feb 2019 05:05:34 GMT]]>Hi,

Can the fipy handle transient spikes of -0.5V on the analog pins?

I am using a voltage divider and a diode for protection but occasionally it goes to negative half a volt and I couldn't see in the documentation whether it could handle that?

]]>https://forum.pycom.io/post/25926https://forum.pycom.io/post/25926Fri, 15 Feb 2019 05:05:34 GMT<![CDATA[Reply to Can the fipy handle transient spikes of -0.5V on the analog pins? on Fri, 15 Feb 2019 08:01:38 GMT]]>@edward-dimmack The data sheet tells: -0.3 - 3.6V as maximum ratings. If teh source impedance is high, it should withstand a little bit more than that. Us a shottky diode (e.g. 1N5711, BAT48) for input protection, which has a lower forward voltage.

]]>https://forum.pycom.io/post/25930https://forum.pycom.io/post/25930Fri, 15 Feb 2019 08:01:38 GMT