ADS7953: ADS7953 application question

Dane Zhang

Expert 4725 points

Part Number: ADS7953

Hi team,

could you help with below question for ADS7953?

is it necessary to use LDO to power VA/VBD/VREF? can we use the DCDC to power? and can we use one rail for these pins?

4 months ago

0 Tom Hendrick 4 months ago

TI__Guru**** 172546 points

Hi Dane,

As noted in the datasheet, VA and VBD can be tied together and used with an LDO. The reference is limited to 2.5V and it is better to provide a quality voltage source to ensure the accuracy of the ADC conversions.

0 Dane Zhang 4 months ago in reply to Tom Hendrick

TI__Expert 4725 points

Hi Tom,

can VA and VBD use with a DCDC?

0 Tom Hendrick 4 months ago in reply to Dane Zhang

TI__Guru**** 172546 points

Yep, they can be the same source.

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ADS7953: ADS7953 application question