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AD7415 I2C


I'm a DFAE in Japan. Our customer give us a question. There is a MOSFET inside SDA pin of AD7415. On the other hand, is there NO MOSFET inside SCL pin of AD7415? According to Table 3, we couldn't see Open-drain output about SCL as follows.



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  • Dear Karen,

    The customer give additional question us below. 

    Assuming that there is an open drain MOSFET inside the SDA pin, is it possible that the MOSFET will turn on when only Vb is supplied?

    My answer is "I don't know." This is because the operation of the internal circuit of the IC is undefined when Va is not supplied. What do you think?