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Design >> Analog Design >> non radix-2 SAR ADC bits combination
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Message started by neoflash on Jul 28^th, 2012, 11:54am

Title: non radix-2 SAR ADC bits combination
Post by neoflash on Jul 28^th, 2012, 11:54am

I have a question about SAR ADC with radix less than two.

For example, if the radix is 1.8 to provide redundancy, when we combine bits together, do we have to have floating point calculation in digital part to calculate the total result?

ADC output = 1.8^N*Bn + 1.8^(N-1)*Bn-1 + ... + B1

Thanks,
Neo