CS5180
Resolution - N
The number of different output codes possible. Expressed as N, where 2N is the number of
available output codes.
Noise -
A measure of the variability of the converter’s output when a fixed DC input (usually ground)
is applied to the input and a large number of samples are taken. RMS noise is determined
statistically as the Standard Deviation of the Probability Density Function derived from the
histogram of the ADC with the differential inputs shorted together and tied to an appropriate
common mode voltage.
Common Mode Rejection Ratio - CMRR
A measure of the device’s ability to cancel out the effect of a common voltage applied to both
of its differential inputs. CMRR is specified as the ratio of the differential signal gain to the
gain for the common-mode signal. Units in dB.
Offset Drift -
Changes in the offset error of the part after self calibration due to changes in ambient
temperature. Specified in microvolts per degree C, relative to the input signal.
Full Scale Drift -
Changes in the full scale error of the part after self calibration due to changes in ambient
temperature. Specified in parts-per-million (PPM) of the full scale range per degree C.
20