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Part Number: ADS1298
I am going through the data sheet of ADS1298. I have the following queries:
1. What are the basic difference between the different members of the ADS129x series?
2. The input referred noise is 4 μVPP (150 Hz BW, G = 6).
i) What does G stand for?
ii) Considering the max voltage =5.25V. A 24 bit ADC would require an noise which is less than 5.25/(2^24) V , which is equal to 0.3μ. Please explain with the calculations involved??
iii) What is the reference volatge for the sigma delta modulator ??
In reply to Brian Pisani:
Thanks for the clarification.
I request you to kindly check the following calculations
1 LSB = Vref/(Gain*2^24)
then, 1 LSB = 5.25/(6*2^24) =0.05214 μV
But the input refered noise in the datasheet is 4 μVPP
which is >> 1LSB.
Please correct me if my understanding is wrong.
In reply to Pankaj Jha:
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