51.13 Internal Voltage Reference Electrical Specifications
| DC CHARACTERISTICS | Standard
Operating Conditions: VDDREG=VDDIO=AVDD 1.71V to 3.63V (unless otherwise
stated) Operating temperature: -40°C ≤ TA ≤ +85°C for Industrial |
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|---|---|---|---|---|---|---|---|
| Param. No. | Symbol | Characteristics | Min. | Typ. (1) | Max. | Units | Conditions |
| VR_1 | IVREF | ADC Internal Analog Channel Voltage | 1.168 | 1.200 | 1.223 | V | ADC.CTRLB.ADCHSEL = 1.2V IVREF |
| VR_9 | ACIREF (2) | Internal Comparator Voltage Reference | 0.787 | 0.8 | 0.84 | V | AC.COMPCTRLn.MUXNEG = Bandgap |
| VR_25 | TDRIFT | Internal Voltage Reference Temperature Drift | — | — | 0.34 | %/°C | Over full operating temperature range |
| VR_27 | VDRIFT | Internal Voltage Reference Voltage Drift | — | — | 2.328 | %/V | Over full operating voltage range |
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Note:
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