Other Parts Discussed in Thread: ADS8681
I am writing to seek assistance regarding the evaluation board ADS8681. While conducting tests with the SPI command, I observed an issue related to the board's functionality. Specifically, when there is no connection established, the board reads a default value.
During my evaluation, I noticed that the evaluation board features several test points, with TP1 designated as the input. When I measured TP1 with multimeter, it displayed a value of 2.4 volts, which is roughly consistent with the readings obtained from the board itself.
Interestingly, when I apply a voltage of 1V, the board displays the correct value. Similarly, when I apply voltages such as 2.3V or 4V, it works accurately. However, the problem arises when nothing is connected, as the board consistently displays a reading of approximately 2.4 volts.
I would greatly appreciate your guidance and support in understanding this issue and finding a solution. Please let me know if you require any additional information or if there are any specific troubleshooting steps that I can follow to further investigate the problem.
Thank you for your attention to this matter. I look forward to your prompt response.