Part Number: DAC63002 Tool/software: I am using it by connecting an external reference to DAC63002. Signals are being sent via SPI communication. Under normal conditions, there is almost no current consumption from the external reference to the DAC63002. However, an SPI communication error occurs intermittently (the SYNC signal goes low throughout one period), and this is when a problem occurs. When an SPI communication error occurs, current flows from the external reference to the DAC, causing the reference voltage to fluctuate. I think the cause is a conflict between the external reference and the DAC internal reference as the DAC stops working due to a communication error. Is there a way to solve this problem? The best way would be to prevent the communication error itself from occurring, but it is difficult to completely eliminate this in the current usage environment. And if the DAC output drops for a short period of time, it does not cause any major problems to the overall operation. However, the fluctuation of the reference voltage must be prevented because it affects the entire signal handled by the product. Is there a way to prevent current from flowing from the external reference to the DAC by modifying the circuit or modifying the DAC setting parameters?
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