Datasheet

77
XMEGA B1 [DATASHEET]
Atmel-8330H-AVR-ATxmega64B1-128B1_datasheet–12/2014
Table 36-11. Accuracy Characteristics
f
ADC
Sample rate
Current limitation (CURRLIMIT) off 16 300
ksps
CURRLIMIT = LOW 250
CURRLIMIT = MEDIUM 150
CURRLIMIT = HIGH 50
Sampling time 1/2 Clk
ADC
cycle 0.25 5 µs
Conversion time (latency)
(RES+2)/2+(GAIN !=0)
RES (Resolution) = 8 or 12
6 10
Clk
ADC
cycles
Start-up time ADC clock cycles 12 24
ADC settling time
After changing reference or input
mode
7 7
Symbol Parameter Condition Min. Typ. Max. Units
Symbol Parameter Condition
(2)
Min. Typ. Max. Units
RES Resolution 12-bit resolution
Differential 8 12 12
BitsSingle ended signed 7 11 11
Single ended unsigned 8 12 12
INL
(1)
Integral non-linearity
Differential
mode
16kSPS, V
REF
= 3V 1
LSB
16kSPS, V
REF
= 1V 2
300kSPS, V
REF
= 3V 1
300kSPS, V
REF
= 1V 2
Single ended
unsigned mode
16kSPS, V
REF
= 3.0V 1 1.5
16kSPS, V
REF
= 1.0V 2 3
DNL
(1)
Differential non-linearity
Differential
mode
16kSPS, V
REF
= 3V 1
LSB
16kSPS, V
REF
= 1V 2
300kSPS, V
REF
= 3V 1
300kSPS, V
REF
= 1V 2
Single ended
unsigned mode
16kSPS, V
REF
= 3.0V 1 1.5
16kSPS, V
REF
= 1.0V 2 3
Offset error
Differential
mode
8 mV
Temperature drift 0.01 mV/K
Operating voltage drift 0.25 mV/V