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DAC6578: I2C address misread

Part Number: DAC6578
Other Parts Discussed in Thread: DAC7568

Hello,

We use DAC6578 and ADDR1=Float, ADDR0=0. Slave address should be 1001100 but Ack respond when address 1001010. From this, ADDR1 seems changed from Float to 1. We see this issue in low temp, -20C condition.

I found the discussion DAC7568 has a similar issue and suggested address pin set intermediate voltage but it doesn't work.

Why does DAC6578 address changed in low temp condition?

Best regards,

Toshihiro Watanabe