A common situation, yet undesirable condition, is to havethe input signal of an A/D converter (such as one of Burr-Brown’s delta-sigma converters) overdrive the input stage.A possible question that arises in this situation is “What willthe output digital code become if the analog input isoverdriven?” The differential analog input range of theADS1210, ADS1211, ADS1212 and ADS1213 analog-todigitalconverters, shown in Figure 1, can be configured tooperate in a unipolar or bipolar mode. In the unipolar mode,the input range is generally 5Vp-p. For bipolar operation theinput range is generally 10Vp-p.
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