ATXMEGA128B1 Datasheet, PDF (75/138 Pages) ATMEL Corporation – 8/16-bit Atmel XMEGA B1 Microcontroller

Symbol Parameter
f_ADC
Sample rate
Sampling Time
Conversion time (latency)
Start-up time
ADC settling time
Condition
Current limitation (CURRLIMIT) off
CURRLIMIT = LOW
CURRLIMIT = MEDIUM
CURRLIMIT = HIGH
1/2 Clk_ADC cycle
(RES+2)/2+(GAIN !=0)
RES (Resolution) = 8 or 12
ADC clock cycles
After changing reference or input mode
Min.
16
0.25
6
Typ.
12
7
Max.
300
250
150
50
5
10
24
7
Units
ksps
µs
Clk_ADC
cycles
Clk_ADC
cycles
Table 36-11. Accuracy characteristics.
Symbol
RES
RES
RES
Parameter
Resolution
Resolution
Resolution
INL⁽¹⁾
Integral non-linearity
DNL⁽¹⁾ Differential non-linearity
Condition⁽²⁾
Differential
12-bit resolution
Single ended signed
Single ended unsigned
16kSPS, VREF = 3V
Differential mode
16kSPS, VREF = 1V
300kSPS, VREF = 3V
300kSPS, VREF = 1V
Single ended
unsigned mode
16kSPS, VREF = 3.0V
16kSPS, VREF = 1.0V
16kSPS, VREF = 3V
Differential mode
16kSPS, VREF = 1V
300kSPS, VREF = 3V
300kSPS, VREF = 1V
Single ended
unsigned mode
16kSPS, VREF = 3.0V
16kSPS, VREF = 1.0V
Min.
8
7
8
Offset Error
Differential mode Temperature drift
Operating voltage drift
Typ.
12
11
12
1
2
1
2
1
2
1
2
1
2
1
2
0.25
Max.
12
11
12
Units
Bits
1.5
3
lsb
1.5
3
8
mV
0.01
mV/K
mV/V
XMEGA B1 [DATASHEET] 75
8330C–AVR–07/2012