ADS1015-Q1: Unused analog inputs

Hirotsugu Kobayashi

Part Number: ADS1015-Q1
Other Parts Discussed in Thread: ADS1115-Q1

Hi team,

The datasheet has been changed and the description of unused analog inputs has changed.
Does it mean that leakage will not increase even if unused analog inputs are connected to GND?

Best Regards,

over 1 year ago

0 Joachim Wuerker over 1 year ago

TI__Mastermind 22815 points

Hi Kobayashi-san,

the increase in leakage current in this device, depending on the unused input pin connection, will not be noticeable because the overall input current is not as low as in some of our higher-end device which have input currents in the single-digit nA range. We therefore decided to change the guideline for this device.

Regards,
Joachim Wuerker

+1 Joachim Wuerker over 1 year ago in reply to Joachim Wuerker

TI__Mastermind 22815 points

BTW: Unfortunately we introduced an error in the DR[2:0] bit description during the last datasheet revision. Somehow the data rates of ADS1115-Q1 were copied into the ADS1015-Q1 datasheet. We need to change that back again to show data rates up to 3.3kSPS.

Regards,
Joachim Wuerker

0 Hirotsugu Kobayashi over 1 year ago in reply to Joachim Wuerker

Mastermind 9245 points

Thank you for your reply and for reporting the error.

Please update the datasheet.

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ADS1015-Q1: Unused analog inputs