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Subject: Circuit that combines 2 x 8-bit ADCs to get 1 higher resolution ADC

Date: 04/27/00 at 4:45 AM
Posted by: Yeu Sheuan Lee
E-mail: yslee@wmsc.com.my
Message Posted:

Hi,

Congradulation for the new forum! It's my pleasure to be the second poster to it.

To kick off, here I have a question on Analog voltage measurement.

As we can see from the catalogue of big uC players, Microcontroller with multiple built-in 8/10-bit ADCs have been very common in the market. However, industrial applications demand at 12-bit resolution. I just wondering if it is practical to combine 2 of the low resolution ADC ports, and make it a single ADC with higher resolution, say 12-bit, or even 14-bit?
Please advice.

Thanks!

Regards,
Lee.


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