ADC circuit

[Moamen Ayman]

Posted on December 09, 2016 at 20:51

Hello, 

I am working on a design on stm32f407vgt6 which I don't want to use the ADC & DAC so I don't have to connect the circuit of ADC and leave VDDA&VSSA&VREF floating?

#clive1

[Lawliet KG · Accepted solution]

Posted on December 13, 2016 at 12:04

Hi

Ayman.Moamen

,

In the datasheet of the

stm32f407xx device, section 'Power supply scheme', it's indicated that VSSA and VDDA pins

MUST

be

respectively

connected to VSS and VDD in order to correctly power on the device; Otherwise, you will be out of specification.

For the VREF pin, it SHOULD be connected.

-> So, whether you will be using DAC/ADC peripherals or not, I advice you to correctly connect those pins as indicated on the datasheet.

If this answers your request, please press 'correct'

🙂

.

Regards,

Lawliet.