Hello,
the revised datasheet of the DAC121C085 (Revision E from January 2016) specifies two different I2C addresses for each possible address coding (table 1). Our observation is that only the first of these addresses works. If we use the second one (we tried 46h and 47h for devices that are accessible by address 4Ch and 0Eh) the DAC121C085 does not acknowledge the address byte but holds the SDA line low after the acknowledge bit and avoids further communication on the I2C bus until the next power cycle.
So what is the meaning of the second I2C address in table 1 of the datasheet?
Thank you and Best Regards,
Rene
DAC121C085