Thanks for help:
using SN74LVC4245a（output vlotage=4.95V） to drive the digital inputs G2G1G0 of LTC6911-2, but the vlotage of the digital inputs will be dropt to 4.6V，How do you solve that?
Could you attach your schematic please?
Thanks for your replies.The problem has been solved with a resistor like figure 2，but I don't know why the currents of G2G1G0 will be so high sometimes.
Sorry for late reaponse.
G0, G1, and G2 digital inputs have internal pull down currents. When driving the inputs with logic, connect a 200 ohm resistor from each logic output to a LTC6911-2 input for reliable control.
Let me know if this solves the issue.
Retrieving data ...