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1st order Delta-Sigma ADC for Temperature compensation

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TiwstedNeurons

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Hi, all

For temperature compensation, if using 1st order DSM to quantize a PTAT voltage, reference is from BG, there should be an idle tone problem, since the PTAT voltage is almost close to DC. If it is true, is there anyway can solve the problem? is it too much to use dither here? The order of DSM has been fixed. Thanks in advance.


-TiwstedNeurons
 

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