Incorrect connection on the block diagram in the data sheet?

HI, the opamp VCC is not connected to the 6v6 pin, and the diagram is correct, as there is not a dot showing a connection. You can see a connection dot to the right of that crossover where the opamp output drive the 6v6 pin. . Sorry for the confusion.

Hello!

My question is about the left side opamp (the driver of the heater's transistor).

Best regards: Zsolt

Thaks for clarifying! I will check.

This connection is correct. The heater-loop opamp is a very small load on the output of the opamp driving the 6v6 output.

Thank you for your reply! 

Thank you for your reply!