Datasheet

...........continued
Symbol Parameter Conditions Min. Typ. Max. Units
t
STARTUP
Startup time - - 2.2
(1)
- μs
Note: 1. These values are based on simulation. These values are not covered by test limits in
production or characterization.
Related Links
10.3.1 NVM User Row Mapping
37.11.4 Analog-to-Digital (ADC) characteristics
Table 37-24. Operating Conditions
Symbol Parameter Conditions Min. Typ. Max. Units
RES Resolution 8 - 12 bits
f
CLK_ADC
ADC Clock frequency 30 - 2100 kHz
Sample rate
(1)
Single shot 5 - 300 ksps
Free running 5 - 350 ksps
Sampling time
(1)
0.5 - - cycles
Conversion time
(1)
1x Gain 6 - - cycles
V
REF
Voltage reference
range
1.0 - V
DDANA
-0.6 V
V
REFINT1V
Internal 1V reference
(2)
- 1.0 - V
V
REFINTVCC0
Internal ratiometric
reference 0
(2)
- V
DDANA
/
1.48
- V
V
REFINTVCC0
Voltage Error
Internal ratiometric
reference 0
(2)
error
2.0V <
V
DDANA
<3.63V
-1.0 - +1.0 %
V
REFINTVCC1
Internal ratiometric
reference 1
(2)
V
DDANA
>2.0V - V
DDANA
/2 - V
V
REFINTVCC1
Voltage Error
Internal ratiometric
reference 1
(2)
error
2.0V <
V
DDANA
<3.63V
-1.0 - +1.0 %
Conversion range
(1)
Differential mode -V
REF
/
GAIN
- +V
REF
/GAIN V
Single-ended
mode
0.0 - +V
REF
/GAIN V
C
SAMPLE
Sampling
capacitance
(2)
- 3.5 - pF
R
SAMPLE
Input channel source
resistance
(2)
- - 3.5 kΩ
SAM D21 Family
Electrical Characteristics
© 2018 Microchip Technology Inc.
Datasheet Complete
DS40001882D-page 1001