44.4.5 Analog-to-Digital Converter (ADC) Accuracy Specifications(1)
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Standard Operating Conditions (unless otherwise stated) VDD = 3.0V, TA = 25°C, TAD = 1 μs, FOSC ≤ 8 MHz, ADCVREF = VDD/VSS, Differential Mode | |||||||
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| Param No. | Sym. | Characteristic | Min. | Typ. † | Max. | Units | Conditions |
| AD01 | NR | Resolution | — | — | 12 | bit | |
| AD02 | EIL | Integral Nonlinearity Error | -6 | ±0.5 | +6 | LSb | ADCREF+ = 3.0V, ADCREF- = 0V |
| AD03 | EDL | Differential Nonlinearity Error | -1 | ±0.5 | +2.5 | LSb | ADCREF+ = 3.0V, ADCREF- = 0V |
| AD04 | EOFF | Offset Error | -11.5 | ±3 | +11.5 | LSb | ADCREF+ = 3.0V, ADCREF- = 0V |
| AD05 | EGN | Gain Error | -4 | ±1 | +4 | LSb | ADCREF+ = 3.0V, ADCREF- = 0V |
| AD06 | VADREF | ADC Reference Voltage (ADREF+ - ADREF-) | 1.8 | — | VDD | V | |
| AD07 | VAIN | Full-Scale Range | ADREF- | — | ADREF+ | V | |
| AD08 | ZAIN | Recommended Impedance of Analog Voltage Source | — | 1 | — | kΩ | |
| AD09 | RVREF | ADC Voltage Reference Ladder Impedance | — | 50 | — | kΩ | (Note 2) |
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* These parameters are characterized but not tested. † Data in “Typ” column is at 3.0V, 25°C unless otherwise stated. These parameters are for design guidance only and are not tested. Note:
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