ADS1192 - tolerance of R1, R2 and R3 for Vref on the datasheet P22

Hirotaka Matsumoto

Other Parts Discussed in Thread: ADS1192

Hi all

Would you mind if we ask ADS1192?
How much is tolerance of R1, R2 and R3 for Vref on the datasheet Figure26 P22?

The datasheet P4 shows that Vref accuracy is ±0.5%.
That's why, will tolerance of each resistance be ±0.5%?

Is our recognition correct?

We need your help.

Kind regards,

Hirotaka Matsumoto

over 8 years ago

0 Ryan Andrews over 8 years ago

TI__Guru 57346 points

Hello Matsumoto-san,

We do not specify the tolerance of the resistors used in the internal reference circuit. Why is it a concern? In the end, the tolerance of Vref should be the important spec, which is typically 0.5%.

Best Regards,

0 Hirotaka Matsumoto over 8 years ago in reply to Ryan Andrews

Guru 27525 points

Ryan san

Thank you for your reply!
OK, we got that you do not specify the tolerance of the resistors used in the internal reference circuit.
However, just only as the reference data, do you have this data?

Kind regards,

Hirotaka Matsumoto

Data converters

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ADS1192 - tolerance of R1, R2 and R3 for Vref on the datasheet P22