https://devzone.nordicsemi.com/f/nordic-q-a/119556/negative-input-voltage-in-specs-range-does-damage-the-chipIn our specific application, we have an analog input signal to the AIN0 pin of the nrf52840 chip. We know that the maximum negative voltage in a GPIO must be -0.3 V, and in our case, we can receive signals up to -0.115 V. This occurs with a power sourceen-USTelligent Community 13Mon, 10 Mar 2025 09:29:13 GMThttps://devzone.nordicsemi.com/thread/526506?ContentTypeID=1Mon, 10 Mar 2025 09:29:13 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7fabd122-6de3-4654-ae54-ee820f56ee15ubedaEve<p>Thank you very much for the answer!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/525981?ContentTypeID=1Wed, 05 Mar 2025 13:04:59 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7ac04b03-34f4-4d08-aec2-0e0dde47b85fBendik Heiskel<p>Hi,</p> <p>As long as the voltage is above the absolute maximum rating of -0.3V it should be OK.</p> <p>&nbsp;</p> <p>Best regards,</p> <p>Bendik</p><div style="clear:both;"></div>