OFFSET ERROR(失调误差):是输出代码从代码0000h转换到0001h时的差分输入电压与1 LSB之差。 POSITIVE FULL-SCALE ERROR(正满量程误差):输出代码转换为正满量程时的差分输入电压与VREF减去1 LSB之差。 POSITIVE GAIN ERROR(正增益误差):是正满量程误差和失调误差之间的差。 PSRR(POWER SUPPLY REJECTION RATIO)(电源...
12. OFFSET ERROR(失调误差):是输出代码从代码0000h转换到0001h时的差分输入电压与1 LSB之差。 13. POSITIVE FULL-SCALE ERROR(正满量程误差):输出代码转换为正满量程时的差分输入电压与VREF减去1 LSB之差。 14. POSITIVE GAIN ERROR(正增益误差):是正满量程误差和失调误差之间的差。 15. PSRR (POWER SUPPLY...
ADC Full scale error is the deviation of the last transition (full scale transition) of the actual ADC from the last transition of the perfect ADC, measured in LSB or Volts. Full scale error is due to both gain and offset errors as shown in the figure below. The deviation of the last...
3Positive full-scale error applies to both unipolar and bipolar input ranges. 4These errors will be of the order of the output noise of the part as shown in Table I after system calibration. These errors will be 20 µV typical after self-calibration or background calibration. 5...
Offset binary is a coding scheme often used for bipolar signals. In offset binary coding, the most negative value (negative full scale) is represented by all zeros (00...000) and the most positive value (positive full scale) is represented by all ones (11...111). Zero-scale is represen...
Ideally, the positive full-scale MAX1 209 transition occurs at 1 .5 LSBs below positive full scale, and the negative fullscale transition occurs at 0.5 LSB above negative full scale. The gain error is the difference of the measured transition points minus the difference of the ideal transition...
adc
Offset binary is a coding scheme often used for bipolar signals. In offset binary coding, the most negative value (negative full scale) is represented by all zeros (00...000) and the most positive value (positive full scale) is represented by all ones (11...111). Zero-scale is represen...
GAIN ERROR (FULL SCALE ERROR)is the difference be-tween the input voltage just causing a transition to positive full scale and V REF -1.5LSB.GAIN TEMPERATURE COEFFICIENT (FULL SCALE TEM-PERATURE COEFFICIENT)is the change in gain error di-vided by change in temperature.Usually expressed in ...
scaletransitionpointandtheidealmidscale transitionpoint. GainError Gainerrorisafigureofmeritthatindicateshowwellthe slopeoftheactualtransferfunctionmatchestheslope oftheidealtransferfunction.Theslopeoftheactual transferfunctionismeasuredbetweentwodatapoints: positivefullscaleandnegativefullscale.Ideally,the positivefull-...