34.5.5 Offset Error Figure 34-63. Offset Error vs. Temperature (VDD = 5.0V, fADC = 145 ksps), Differential, REFSEL = External Reference Figure 34-64. Offset Error vs. Temperature (VDD = 5.0V, fADC = 145 ksps), Differential, REFSEL = Internal Reference Figure 34-65. Offset Error vs. VDD (fADC = 145 ksps) at T = 25°C, Differential, REFSEL = External Reference Figure 34-66. Offset Error vs. VDD (fADC = 145 ksps) at T = 25°C, Differential, REFSEL = Internal Reference