Hi Vitor,

On the schematics, the LTC4316 SDAIN and SCLIN are tied to the VCC side of the pull up resistors.  They need to go to the other side of the pull-ups. The LTC4316 won't be able to see the logic lows or pull the bus low if it is setup like in the…

Hi Andreas,

Is the concern the fact that the 3-state ADDR pin only gives you 3 I2C addresses? You could either use an I2C multiplexer, or either LTC4316 or LTC4317 Address Translators:

http://www.analog.com/media/en/technical-documentation/product-selector…

Thanks for the input. The first IC has been successfully read from the 2451 daisy chain. The following read sequence was used:

ICOM[0] - START(0110)       ----- DATA[0] - (7bit-Addr)+R ----- FCOM[0] - MASTER NACK(1000)

ICOM[1] - SDA LOW(0000)  ----- DATA[1]…