Hi,

LT1715
Production
The LT1715 is an UltraFast™ dual comparator optimized for low voltage operation. Separate supplies allow independent analog input ranges and output logic...
Datasheet
LT1715 on Analog.com
AD5764
Production
NEWER ALTERNATIVES:
AD5764R Quad, 16-Bit, 1LSB INL, Bipolar Voltage Output DAC with Internal Reference
AD5754R Complete, Quad, 16-Bit, Unipolar/Bipolar...
Datasheet
AD5764 on Analog.com
Hi,
Hi DSJang,
Having a quick look on your circuit, I don't see any issues with it.
Though, your resistor network at the input side is blurred and I'm not sure if this configuration will give you the expected trip points. Can you give a clear picture with it?
Because on the application stand point, this sets the trip points you want to have (1V to 10V).
Have you tried playing around with LT1715 in LTSpice? the model is available and you can configure it to see the expected behavior of your schematic design.
For the rest of the questions, VCC = 12V and VEE = 0.0V is valid based on the datasheet, and I don't see any problems directly connecting it with the AD5764's voltage output.
Hope this helps DSJang.
Best Regards,
Dann
Glad to be of help DDJang.
Let me know if you have more questions.
Thank you!