
559
42073A-MCU Wireless-02/13
ATmega2564/1284/644RFR2
Table 35-14. ADC Characteristics, Single Ended Channels
(1)(2)
Symbol
Parameter
Condition
Min
Typ
Max
Units
dRES4M
Resolution
Single Ended Conversion fCLKADC ≤ 4 MHz
10
Bits
dRES8M
Single Ended Conversion fCLKADC = 8 MHz
8
Bits
eABS500k
Absolute accuracy (Including
INL, DNL, quantization error,
gain and offset error)
(3)
Single Ended Conversion
VREF = 1.6V
fCLKADC = 500kHz
2
LSB
eABS2M
Single Ended Conversion
VREF = 1.6V
fCLKADC = 2MHz
2
LSB
eABS4M
Single Ended Conversion
VREF = 1.6V
fCLKADC = 4MHz
2
LSB
eINL
Integral Non-Linearity (INL)
Single Ended Conversion
VREF = 1.6V
fCLKADC = 4MHz
0.8
LSB
eDNL
Differential Non-Linearity
(DNL)
Single Ended Conversion
VREF = 1.6V
fCLKADC = 4MHz
-0.5
LSB
eGAIN
Gain Error
Single Ended Conversion
VREF = 1.6V
fCLKADC = 4MHz
1
LSB
eOFFSET
Offset Error
Single Ended Conversion
VREF = 1.6V
fCLKADC = 4MHz
1.5
LSB
tCONV,SE
Conversion Time
Free Running Conversion
3
240
s
fCLKADC
Clock Frequency
Single Ended Conversion
8
MHz
VREF
Reference Voltage
1.5
AVDD
V
VIN,SE
Input Voltage
0
AVDD
V
fIBW
Input Bandwidth
20
kHz
CAIN
Input Sampling Capacitance
14
pF
RAIN,SER
Analog Series Resistance
(4)
Between pin and sampling capacitor
2
k
RAIN
Analog Input Resistance
Static load resistor of input signal
100
M
Notes:
1. Values are guidelines only.
2. All values are valid for EVDD = 3.0V.
3. Absolute accuracies do not include dependencies on the absolute value of the reference voltage.
4. Series resistor depends on supply voltage (MOS switch resistance ~ 1/VSUPPLY).
Table 35-15. PGA and ADC Characteristics, Differential Channels
(1)(2)(4)
Symbol
Parameter
Condition
Min
Typ
Max
Units
dRES,D
Resolution
All gain settings
10
Bits
eABS,D1
Absolute accuracy (Including
INL, DNL, quantization error,
gain and offset error)
(3)
Gain = 1x
VREF = 1.6V
fCLKADC = 2MHz
3
LSB
eINL,D1
Integral Non-Linearity (INL)
Gain = 1x
VREF = 1.6V
fCLKADC = 2MHz
3
LSB
eDNL,D1
Differential Non-Linearity
(DNL)
Gain = 1x
VREF = 1.6V
fCLKADC = 2MHz
-0.75
LSB
eGAIN,D1
Gain Error
Gain = 1x
1
LSB
eGAIN,D10
Gain = 10x
1.5
eGAIN,D200
Gain = 200x
10