
560
42073A-MCU Wireless-02/13
ATmega2564/1284/644RFR2
Symbol
Parameter
Condition
Min
Typ
Max
Units
eOFFSET,D1
Offset Error
Gain = 1x
VREF = 1.6V
fCLKADC = 2MHz
0.7
LSB
tCONV,D
Conversion Time
Free Running Conversion
100
s
fCLKADC
Clock Frequency
Single Ended Conversion
2
MHz
VREF
Reference Voltage
1.5
AVDD
V
VCM
Input Common Mode Voltage
0
EVDD
V
VIN,DIFF
Input Differential Voltage
Input pin voltage ≥ 0V
-AVDD
AVDD
V
dOUT,D
ADC Conversion Output
-512
511
LSB
fIBW,D
Input Bandwidth
20
kHz
CAIN,PGA
Input Sampling Capacitance
Gain = 200x
7.5
pF
RAIN,SER
Analog Series Resistance
(5)
Between pin and sampling capacitor
0.5
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. Performance of differential channels deteriorates if PGA output voltage is close to ground.
5. Series resistor depends on supply voltage (MOS switch resistance ~ 1/VSUPPLY).
35.12 Temperature Sensor Characteristics
Table 35-16. Temperature Sensor Characteristics
Symbol
Parameter
Condition
Min
Typ
Max
Units
TDISTNOCAL
Temperature distribution
Typical, No calibration performed, T = 25 C
Internal1.6V Bandgap reference selected
3.5
K
35.13 Analog Comparator Characteristics
Table 35-17. Analog Comparator Electrical Characteristics
Symbol
Parameter
Condition
Min
Typ
Max
Units
VACIO
Input Offset Voltage
(1)
VDD = 3.0V, VIN = VDD/2, T = 25°C
<10
mV
IACLK
Input Leakage Current
(4)
VDD = 3.0V, VIN = VDD/2, T = 25°C
<10
nA
tACID
Propagation Delay
(2)
VDD = 3.0V, VIN = VDD/2, T = 25°C
175
nA
ISUPPLY,AC
Supply Current
(3)
VDD = 3.0V, VIN = VDD/2, T = 25°C
50
A
Notes:
1. This parameter is characterized and not 100% tested.
2. Analog delay only. Output of comparator is clocked into ACO bit of ACSR register.
3. Bit ACD in register ACSR is low.
35.14 Transceiver Electrical Characteristics
35.14.1 Digital Interface Timing Characteristics
Test Conditions: TOP = 25°C, VDD = 3.0V, CL = 50 pF (unless otherwise stated)