Rainbow Electronics ATmega3290P_V - Manual (Page 318)

318
ATmega329/3290/649/6490
2552H–AVR–11/06
ADC Characteristics – Preliminary Data
Table 141. ADC Characteristics
Symbol Parameter Condition Min Typ Max Units
Resolution
Single Ended Conversion 10 Bits
Differential Conversion 8 Bits
Absolute accuracy (Including
INL, DNL, quantization error,
gain and offset error)
Single Ended Conversion
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200 kHz
2 2.5 LSB
Single Ended Conversion
V
REF
= 4V, V
CC
= 4V,
ADC clock = 1 MHz
4.5 LSB
Single Ended Conversion
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200 kHz
Noise Reduction Mode
2 LSB
Single Ended Conversion
V
REF
= 4V, V
CC
= 4V,
ADC clock = 1 MHz
Noise Reduction Mode
4.5 LSB
Integral Non-Linearity (INL)
Single Ended Conversion
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200 kHz
0.5 LSB
Differential Non-Linearity (DNL)
Single Ended Conversion
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200 kHz
0.25 LSB
Gain Error
Single Ended Conversion
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200 kHz
2 LSB
Offset Error
Single Ended Conversion
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200 kHz
2 LSB
Conversion Time Free Running Conversion 13 260 µs
Clock Frequency Single Ended Conversion 50 1000 kHz
AVCC Analog Supply Voltage V
CC
- 0.3 V
CC
+ 0.3 V
V
REF
Reference Voltage
Single Ended Conversion 1.0 AVCC V
Differential Conversion 1.0 AVCC - 0.5 V
V
IN
Pin Input Voltage
Single Ended Channels GND V
REF
V
Differential Channels GND AVCC V
Input Range
Single Ended Channels GND V
REF
V
Differential Channels (1) -0.85V
REF
V
REF
V
Input Bandwidth
Single Ended Channels 38.5 kHz
Differential Channels 4 kHz