Datasheet

177
8183F–AVR–06/12
ATtiny24A/44A/84A
20.6 ADC Characteristics
Table 20-7. ADC Characteristics, Single Ended Channels. T = -40°C to +85°C
Symbol Parameter Condition Min Typ Max Units
Resolution 10 Bits
Absolute accuracy
(Including INL, DNL, and
Quantization, Gain and Offset
Errors)
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200 kHz
2.0 LSB
V
REF
= 4V, V
CC
= 4V,
ADC clock = 1 MHz
2.5 LSB
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200 kHz
Noise Reduction Mode
1.5 LSB
V
REF
= 4V, V
CC
= 4V,
ADC clock = 1 MHz
Noise Reduction Mode
2.0 LSB
Integral Non-Linearity (INL)
(Accuracy after Offset and
Gain Calibration)
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200 kHz
1.0 LSB
Differential Non-linearity
(DNL)
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200 kHz
0.5 LSB
Gain Error
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200 kHz
2.0 LSB
Offset Error (Absolute)
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200 kHz
1.5 LSB
Conversion Time Free Running Conversion 14 280 µs
Clock Frequency 50 1000 kHz
V
IN
Input Voltage GND V
REF
V
Input Bandwidth 38.5 kHz
A
REF
External Voltage Reference 2.0 V
CC
V
V
INT
Internal Voltage Reference 1.0 1.1 1.2 V
R
REF
Reference Input Resistance 32 kΩ
R
AIN
Analog Input Resistance 100 MΩ
ADC Conversion Output 0 1023 LSB