Rainbow Electronics ATmega64C1 - Manual (Page 317)

317
7647A–AVR–02/08
ATmega32/64/M1/C1
Zero Error (Offset)
Single Ended Conversion
V
CC
= 4.5V, V
REF
= 4V
ADC clock = 1MHz
-4 0 LSB
Single Ended Conversion
V
CC
= 4.5V, V
REF
= 4V
ADC clock = 500 kHz
-2 2.5 LSB
Differential Conversion
V
CC
= 4.5V, V
REF
= 4V
ADC clock = 1MHz
-0.5 0.5 LSB
Differential Conversion
V
CC
= 4.5V, V
REF
= 4V
ADC clock = 500 kHz
-0.5 0.5 LSB
Conversion Time Single Conversion 8 320 µs
Clock Frequency 50 2000 kHz
AV
CC
Analog Supply Voltage V
CC
- 0.3 V
CC
+ 0.3 V
V
REF
Reference Voltage
Single Ended Conversion 2.0 AV
CC
V
Differential Conversion 2.0 AV
CC
- 0.2 V
V
IN
Input voltage
Single Ended Conversion GND V
REF
Differential Conversion -V
REF
/Gain +V
REF
/ Gain
Input bandwidth
Single Ended Conversion 38.5 kHz
Differential Conversion 4 kHz
V
INT
Internal Voltage Reference 2.56 V
R
REF
Reference Input Resistance 30 k
Ω
R
AIN
Analog Input Resistance 100 M
Ω
I
HSM
Increased Current
Consumption High Speed Mode
Single Ended Conversion
µA
Table 25-2. ADC Characteristics - T
A
= -40
°
C to +125
°
C, V
CC
= 2.7V to 5.5V (unless otherwise noted) (Continued)
Symbol Parameter Condition Min Typ Max Units