I have two questions about wire connections when I don't use internal DC to DC converters.
- Is it no problem to connect Vboost_x pin and AVdd(+15V)?
- AVcc should be connected to +5V or left open condition?
AVCC should be connected with a 5V supply and the DC-DC converter should be disabled if you don't want to use the converter.
VBOOST can be directly supplied with 15V.
AVCC should be supplied with 5.0V and VBOOST should be tied to AVCC.
You might find the following thread useful for your question:
I want to use DAC function without using internal DC to DC converter. Then, I will connect Vboost_x, SW_x and AVCC as follows. Is it no problem?
- Vboost_x = AVDD(=+15V)
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