Datasheet

DRAFT
1409
SAM3X / SAM3A [DATASHEET]
Atmel-11057C-ATARM-SAM3X-SAM3A-Datasheet_23-Mar-15
Note: 1. Input Voltage range can be up to VDDIN without destruction or over-consumption.
If V
DDIO
< V
ADVREF
max input voltage is V
DDIO
.
45.7.3 ADC Application Information
For more information on data converter terminology, please refer to the application note Data Converter
Terminology (Atmel literature No. 6022) available on www.atmel.com.
3.56 74 97
3.20 83 108
2.91 92 119
2.67 100 130
2.46 109 141
2.29 118 152
2.13 126 164
2.00 135 175
1.00 274 353
Table 45-38. Analog Inputs
Symbol Parameter Conditions Min Typ Max Unit
V
IR
Input Voltage Range
(1)
0V
ADVREF
V
I
lkg
Input Leakage Current ±0.5 µA
C
i
Input Capacitance 8pF
Table 45-37. Source Impedance Values (Continued)
f
ADC
= ADC clock (MHz) Z
SOURCE
(kΩ) for 12 bits Z
SOURCE
(kΩ) for 10 bits