Datasheet

180
8006H–AVR–10/09
ATtiny24/44/84
20.7 ADC Characteristics – Preliminary Data
Note: 1. Values are preliminary.
Table 20-9. ADC Characteristics, Single Ended Channels. T = -40°C - 85°C
Symbol Parameter Condition Min
(1)
Typ
(1)
Max
(1)
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 TBD LSB
V
REF
= 4V, V
CC
= 4V,
ADC clock = 1 MHz
2.5 TBD LSB
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200 kHz
Noise Reduction Mode
1.5 TBD LSB
V
REF
= 4V, V
CC
= 4V,
ADC clock = 1 MHz
Noise Reduction Mode
2.0 TBD LSB
Integral Non-Linearity (INL)
(Accuracy after Offset and
Gain Calibration)
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200 kHz
1.0 TBD LSB
Differential Non-linearity
(DNL)
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200 kHz
0.5 TBD LSB
Gain Error
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200 kHz
2.0 TBD LSB
Offset Error
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200 kHz
1.5 TBD LSB
Conversion Time Free Running Conversion 14 280 µs
Clock Frequency 50 1000 kHz
V
IN
Input Voltage GNDV
REF
V
Input Bandwidth 38.4 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