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DAC101C081: Power Input Order for DAC101C081 when setting the slave address.

kkd5169
Prodigy 10 points
Part Number: DAC101C081


Hello,

I am contacting you because I have a question about the dac101c081 product.

I wonder the order of power input to ADR0 and VA when setting slave address for I2c communication.

I'm wondering in what order I should enter and if it's okay to come in at the same time.

  • 0
    TI__Mastermind 42273 points

    Hello,

    It is ok if ADDR0 comes up at the same time, or after VA. The address pins are sampled until a successful communication is done with one of the available I2C addresses (other than the broadcast address), so ADDR0 doesn't need to be set before power up. The address is locked after the first successful communication. 

    Best,

    Katlynne Jones