Datasheet

718
11011B–ATARM–21-Feb-12
SAM3N
35.6 10-Bit ADC Characteristics
Notes: 1. Corresponds to 13 clock cycles at 5 MHz: 3 clock cycles for track and hold acquisition time and 10 clock cycles for
conversion.
2. Corresponds to 15 clock cycles at 8 MHz: 5 clock cycles for track and hold acquisition time and 10 clock cycles for
conversion.
Table 35-29. Analog Power Supply Characteristics
Symbol Parameter Conditions Min Typ Max Units
V
VDDIN
ADC Analog Supply 3.0 3.6 V
I
VDDIN
Active Current
Consumption
on VDDIN 0.55 1 mA
Table 35-30. Channel Conversion Time and ADC Clock
Parameter Conditions Min Typ Max Units
ADC Clock Frequency 10-bit resolution mode 5 MHz
ADC Clock Frequency 8-bit resolution mode 8 MHz
Startup Time Return from Idle Mode 20 µs
Track and Hold Acquisition Time
See Section 35.6.0.3 “Track and Hold
Time versus Source Output Impedance”
for more details
600 ns
Conversion Time ADC Clock = 5 MHz 2 µs
Conversion Time ADC Clock = 8 MHz 1.25 µs
Throughput Rate ADC Clock = 5 MHz 384
(1)
kSPS
Throughput Rate ADC Clock = 8 MHz 533
(2)
kSPS
Table 35-31. External Voltage Reference Input
Parameter Conditions Min Typ Max Units
ADVREF Input Voltage Range 2.6 V
DDIN
V
ADVREF Input Voltage Range 8-bit resolution mode 2.5 V
DDIN
V
ADVREF Average Current On 13 samples with ADC Clock = 5 MHz 200 250 µA
Table 35-32. Transfer Characteristics
Parameter Conditions Min Typ Max Units
Resolution 10 Bit
Integral Non-linearity ±2 LSB
Differential Non-linearity No missing code ±1 LSB
Offset Error ±2 LSB
Gain Error ±2 LSB
Absolute Accuracy ±4 LSB