34.5.1 Absolute Accuracy Figure 34-45. Absolute Accuracy vs. Temperature (VDD = 5.0V, fADC = 145 ksps), Differential, REFSEL = External Reference Figure 34-46. Absolute Accuracy vs. Temperature (VDD = 5.0V, fADC = 145 ksps), Differential, REFSEL = Internal Reference Figure 34-47. Absolute Accuracy vs. VDD (fADC = 145 ksps) at T = 25°C, Differential, REFSEL = External Reference Figure 34-48. Absolute Accuracy vs. VDD (fADC = 145 ksps) at T = 25°C, Differential, REFSEL = Internal Reference