Atmel Xplained Pro Evaluation Kit for the ATSAMD21J18A Microcontroller ATSAMD21-XPRO ATSAMD21-XPRO Data Sheet
Product codes
ATSAMD21-XPRO
946
Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181C–SAM-D21_Datasheet–07/2014
36.9.6 Analog Comparator Characteristics
Notes: 1. According to the standard equation V(X)=V
LSB
*(X+1); V
LSB
=V
DDANA
/64
2. Data computed with the Best Fit method
3. Data computed using histogram
3. Data computed using histogram
36.9.7 Internal 1.1V Bandgap Reference Characteristics
Table 36-29. Bandgap and Internal 1.1V reference characteristics
Table 36-28. Electrical and Timing
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Units
I
Positive input voltage
range
range
I
0
-
V
DDANA
V
I
Negative input voltage
range
range
I
0
-
V
DDANA
I
Offset
Hysteresis = 0, Fast mode
-15
0.0
+15
mV
Hysteresis = 0, Low power mode
-25
0.0
+25
mV
Hysteresis
Hysteresis = 1, Fast mode
20
50
80
mV
Hysteresis = 1, Low power mode
15
40
75
mV
Propagation delay
Changes for V
ACM
=V
DDANA
/2
100mV overdrive, Fast mode
-
60
116
ns
Changes for V
ACM
=V
DDANA
/2
100mV overdrive, Low power
mode
mode
-
225
370
ns
t
STARTUP
Startup time
Enable to ready delay
Fast mode
Fast mode
-
1
2
µs
Enable to ready delay
Low power mode
Low power mode
-
12
19
µs
V
SCALE
INL
-1.4
0.75
+1.4
LSB
DNL
-0.9
0.25
+0.9
LSB
Offset Error
-0.200
0.260
+0.920
LSB
Gain Error
-0.89
0.215
0.89
LSB
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Units
INT1V
Internal 1.1V Bandgap
reference
reference
After calibration at T= 25°C,
over [-40, +85]C
over [-40, +85]C
1.08
1.1
1.12
V
Over voltage at 25°C
1.09
1.1
1.11
V