MSP430I2041: ADC Gain error for x2 and x4: is it zero?

Brad Zarikoff

Part Number: MSP430I2041

pg 23 of slas887.pdf states that the ADC gain error for 1, 8 and 16 is +/- 2%. It does not list error for 2 or 4; does that mean one can expect gain error of 0% for those gain settings?

over 7 years ago

0 Britta Ruelander over 7 years ago

TI__Genius 10860 points

Hi Brad,

No, not listing errors for a gain of 2 or 4 does not mean that you can expect a gain error of 0%. I expect the gain error to be in a similar magintude to gains of 1, 8 and 16.
As this is currently not specified in the data sheet let me check if I can get a more detailed information on the gain error for a gain of 2 and 4 respectively.

Best regards,
Britta

0 Brad Zarikoff over 7 years ago in reply to Britta Ruelander

Prodigy 185 points

Thanks Britta, I assumed so but found it odd it wasn't listed in the datasheet. I appreciate you checking on it for me.

Brad.

0 Britta Ruelander over 7 years ago in reply to Brad Zarikoff

TI__Genius 10860 points

Hi Brad,

this is likely to be updated in the datasheet as well. In the meantime you can go ahead with your application as the gain error for a gain of 2 and 4 respectively is within the limits of +/- 2 % (equivalent to 1,8,16).

Please go ahead and click "Verify answer" if this answered your question.

Best regards,
Britta

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MSP430I2041: ADC Gain error for x2 and x4: is it zero?