over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted), all TYP values are measured at 25℃ and all linearity parameters are measured using 12-bit resolution mode (unless otherwise noted)(1)(2)
| PARAMETER |
TEST CONDITIONS |
MIN |
TYP |
MAX |
UNIT |
| Ej |
Integral linearity error (INL) |
External reference |
-2.0 |
|
+2.0 |
LSB |
| Ek |
Differential linearity error (DNL) Guaranteed no missing codes |
External reference |
-1.0 |
|
+1.0 |
LSB |
| EO |
Offset error |
External reference |
-3 |
|
3 |
mV |
| Internal reference, VR+ = VREF = 2.5V |
| EG |
Gain error |
External reference |
-5 |
|
5 |
LSB |
| Internal reference, VR+ = VREF = 2.5V |
-65 |
|
65 |
LSB |
(1) Total Unadjusted Error (TUE) can be calculated from EI , EO , and EG using the following formula: TUE = √( EI2 + |EO|2 + EG2 ). All of the errors must be converted in the same unit, usually LSB, for the above equation to be accurate.
(2) All external reference specifications are measured with VR+ = VREF+ = VDD and VR- = VSS = 0V, external 1uF cap on VREF+ Pin, HW Averaging feature.