Parameter 1 | Symbol | Conditions 2 | Min | Typ | Max | Units |
---|---|---|---|---|---|---|
VCCAUX_SMON = 1.5V ±3%, VREFP = 1.024V 3 , VREFN = 0V, Tj = –40°C to 100°C, typical values at Tj = 40°C | ||||||
ADC Accuracy 4 | ||||||
Resolution | 10 | – | – | Bits | ||
Integral nonlinearity | INL | –1 | – | 1 | LSBs | |
Differential nonlinearity | DNL | No missing codes, guaranteed monotonic | –1 | – | 1 | LSBs |
Offset error | Calibrated | –2 | – | 2 | LSBs | |
Gain error | Calibrated | –0.4 | – | 0.4 | % | |
Sample rate | 0.25 | MS/s | ||||
RMS code noise | External 1.024V reference | – | – | 1 | LSBs | |
On-chip reference | – | – | 1 | LSBs | ||
Analog Inputs | ||||||
ADC input ranges (VP–VN) |
Unipolar operation | 0 | 1 | V | ||
Bipolar operation | –0.5 | – | 0.5 | V | ||
ADC input common mode ranges | Unipolar common mode range (FS input) | 0 | – | 0.25 | V | |
Bipolar common mode range (FS input) | 0.5 | – | 0.6 | V | ||
Maximum external channel input ranges | Adjacent channels set within these ranges should not corrupt measurements on adjacent channels | –0.1 | – | VCCAUX_SMON | V | |
On-Chip Sensors | ||||||
Supply sensor error |
Measurement range up to VCCAUX_SMON ±3% Tj = –55°C to 125°C, internal or external reference |
–1 | – | 1 | % | |
System Monitor Reference 5 | ||||||
External reference | VREFP | Externally supplied reference voltage | 0.973 | 1.024 | 1.075 | V |
On-chip reference |
Tie VREFP to AGND, Tj = –40°C to 125°C |
1.019 | 1.024 | 1.029 | V | |
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