Datasheet

Table Of Contents
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Symbol Parameters Conditions Min Typ Max Unit
Ts Sampling time with DAC as input
SAMPCTRL.OFFCOMP=1
REFCTRL.REFCOMP=1
CTRLC.R2R=1
(4) ns
SAMPCTRL.OFFCOMP=0
(3)
REFCTRL.REFCOMP=0
CTRLC.R2R=0
Ts Sampling time with Temp Sensor or Bandgap as input
SAMPCTRL.OFFCOMP=1
REFCTRL.REFCOMP=1
CTRLC.R2R=1
10000 - 4/fadcmin=25000
ns
SAMPCTRL.OFFCOMP=0
(3)
REFCTRL.REFCOMP=0
CTRLC.R2R=0
10000 - 65/fadcmin=406250
Vcnv Conversion range
Differential mode -VREF - +VREF
V
Single-ended mode 0 - VREF
Vref Reference input 1 - VDDANA-0.4 V
Vin Input channel range 0 - VDDANA V
Vcmin Input common mode voltage
CTRLC.R2R=1 0 +VREF/2 VDDANA V
CTRLC.R2R=0 See Note 2 V
CSAMPLE Input sampling capacitance 2 2.5 3 pF
RSAMPLE Input sampling on-resistance - 2000
Rref Reference source resistance - 2.5 kΩ
Note: 
1. These are based on simulation. These values are not covered by test or characterization.
2. Limit the input common mode voltage using following equations (where VCM_IN is the input
channel common mode voltage):
When CTRLC.R2R=0,
VCM_IN < 0.75*VREF
VCM_IN > Maximum of (0, VREF-VDDANA-0.7, 1.25*VREF-VDDANA)
3. When OFFCOMP is disabled, Ts is function of SAMPLEN[5:0] register value, ie Ts=(SAMPLEN+1)/
fadc.
4. See Ts specified in DAC electrical characteristic.
Table 55-10. Differential Mode
(1)
Symbol
Parameter Conditions
Measurement
Unit
Min Typ Max
ENOB Effective Number of bits Fadc = 1Msps - R2R disabled
Vddana=3.0V Vref=Vddana 10.5 10.8 11.2
Vddana=3.0V ExtVref=2.0V 10.5 10.8 11.0
TUE Total Unadjusted Error
(3)
Fadc = 1Msps - R2R disabled
Vddana=3.0V Vref=Vddana - +/-2.3 +/-5.2
Vddana=3.0V ExtVref=2.0V - +/-2.7 +/-5.7
INL Integral Non Linearity Fadc = 1Msps - R2R disabled
Vddana=3.0V Vref=Vddana - +/-1.2 +/-1.7
Vddana=3.0V ExtVref=2.0V - +/-1.2 +/-1.5
DNL Differential Non Linearity Fadc = 1Msps - R2R disabled
Vddana=3.0V Vref=Vddana - +/-0.98 -1/+1
Vddana=3.0V ExtVref=2.0V - +/-0.96 -1/+1
SAM D5x/E5x Family Data Sheet
Electrical Characteristics at 105°C
© 2019 Microchip Technology Inc.
Datasheet
DS60001507E-page 2043