ADS8686S: ALDO voltage

Ken Zhang

Expert 3755 points

Part Number: ADS8686S

hi,

A customer wants to know more information about ALDO in ADS8686S.

what is ALDO typical voltage? and what is min. and max. voltage of ALDO ?

over 2 years ago

0 Dale Li over 2 years ago

TI__Mastermind 48025 points

Hi Ken,

The voltage on the REGCAP pin is around 1.9V which is voltage output from the internal analog regulator (ALDO), and also you can see the ALDO range in the following figure from the data sheet.

Dale

0 Ken Zhang over 2 years ago in reply to Dale Li

TI__Expert 3755 points

Dale

customer wants to know the more accurate ALDO voltage range。

     The minimum value in Fig 7-21 is 1.7v. What is the error range of this minimum value?
 Likewise, What is the error range of the maximum value(2.1V)?

0 Dale Li over 2 years ago in reply to Ken Zhang

TI__Mastermind 48025 points

Hi Ken,

Can you let me know why customer cares about this ALDO voltage so much? this is a LDO/voltage just for internal use on the ADS8686S ADC, it's should not be used for customer's external circuit. What you asked were not characterized.

- Dale

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ADS8686S: ALDO voltage