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ADS1263: Shut resistor recommendation

Prodigy 420 points

Replies: 3

Views: 131

Part Number: ADS1263

Hello,

Can you please recommend an optimize shunt resistor to sense current?

Is there any technical document describng how to select shurt resistor values?

This is simple structure of the system:

PMIC(ex. 1.1V supply) ------(ADS1263 input P) Shunt resistor 10mohm (ADS1263 input N)-------device for current measuring

 Here is ADS1263 design parameters:

1. AVDD : 5V

2. DVDD : 3.3V

3 Ref Voltage : internal 2.5V

4. PMIC supply range : 0.5V~3.3V

5. current range : 0mA ~ 500mA

Thanks!

  • Hi Gibson,

    Can you provide a little more detail (like a schematic or more detailed block diagram perhaps)?  What PMIC device are you using?  Is the 'PMIC Supply Range' the output voltage from the power management device?

     

    Regards,

    Tom

  • In reply to Tom Hendrick:

    Hi Tom,

    Thanks for advice.

    I do not have part number of the PMIC and what you describe about PMIC supply range is correct.

    I may share schematic through seperate email. I will contact you in email chain for further discussion and support.

    Thanks!

  • In reply to Gibson Kim:

    Looking forward to it!

     

    Regards,

    Tom

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