Datasheet

...........continued
Symbol Parameter Conditions Min. Typ. Max. Units
Sample rate
(1)
Single shot (with
VDDANA > 3.0V)
(4)
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
I
DD
DC supply current
(1)
f
CLK_ADC
=
2.1MHz
(3)
- 1.25 1.85 mA
VDDANA Power Supply
Voltage
T>105°C 3 3.6 V
Note:
1. These values are based on characterization. These values are not covered by test limits in
production.
2. These values are based on simulation. These values are not covered by test limits in production or
characterization.
3. In this condition and for a sample rate of 350ksps, 1 Conversion at gain 1x takes 6 clock cycles of
the ADC clock (conditions: 1X gain, 12-bit resolution, differential mode, free-running).
SAM D21 Family
Electrical Characteristics at 125°C
© 2018 Microchip Technology Inc.
Datasheet Complete
DS40001882D-page 1076