Datasheet

253
ATtiny828 [DATASHEET]
8371A–AVR–08/12
24.8 ADC Characteristics
Table 112. ADC Characteristics. T = -40°C to +85°C. VCC = 1.7 – 5.5V
Symbol Parameter Condition Min Typ Max Units
Resolution 10 Bits
Absolute accuracy
(Including INL, DNL, and
Quantization, Gain and
Offset Errors)
V
REF
= V
CC
= 4V,
ADC clock = 200 kHz
2 LSB
V
REF
= V
CC
= 4V,
ADC clock = 1 MHz
3 LSB
V
REF
= V
CC
= 4V,
ADC clock = 200 kHz
Noise Reduction Mode
1.5 LSB
V
REF
= V
CC
= 4V,
ADC clock = 1 MHz
Noise Reduction Mode
2.5 LSB
Integral Non-Linearity
(INL)
(Accuracy after Offset
and Gain Calibration)
V
REF
= V
CC
= 4V,
ADC clock = 200 kHz
1 LSB
Differential Non-linearity
(DNL)
V
REF
= V
CC
= 4V,
ADC clock = 200 kHz
0.5 LSB
Gain Error
V
REF
= V
CC
= 4V,
ADC clock = 200 kHz
2.5 LSB
Offset Error
V
REF
= V
CC
= 4V,
ADC clock = 200 kHz
1.5 LSB
Conversion Time Free Running Conversion 13 260 µs
Clock Frequency 50 1000 kHz
V
IN
Input Voltage GND V
REF
V
Input Bandwidth 38.5 kHz
R
AIN
Analog Input Resistance 100 MΩ
ADC Conversion Output
0 1023 LSB