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AD7745/46/47 addressing for multiple slave devices on I2C bus

I want to connect several Capacitance to Digital Converters (AD7745, AD7746,
AD7747) using
the I2C bus. The question is how can I get the slave address of each device or
how can set
the slave address to each one?

 

The I2C address of the AD7745/6/7 cannot be changed. In order to address
multiple
devices an I2C multiplexer is required to switch between the Capacitance to
Digital Converters.
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