Datasheet

168
2586D–AVR–02/06
ATtiny25/45/85
24.6 ADC Characteristics – Preliminary Data
Note: 1. Values are preliminary.
Table 24-2. ADC Characteristics, Single Ended Channels. -40°C - 85°C
Symbol Parameter Condition Min
(1)
Typ
(1)
Max
(1)
Units
Resolution Single Ended Conversion 10 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
2LSB
Single Ended Conversion
V
REF
= 4V, V
CC
= 4V,
ADC clock = 1 MHz
3LSB
Single Ended Conversion
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200 kHz
Noise Reduction Mode
1.5 LSB
Single Ended Conversion
V
REF
= 4V, V
CC
= 4V,
ADC clock = 1 MHz
Noise Reduction Mode
2.5 LSB
Integral Non-linearity (INL)
Single Ended Conversion
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200 kHz
1LSB
Differential Non-linearity (DNL)
Single Ended Conversion
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200 kHz
0.5 LSB
Gain Error
Single Ended Conversion
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200 kHz
2.5 LSB
Offset Error
Single Ended Conversion
V
REF
= 4V, 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
V
INT
Internal Voltage Reference 1.0 1.1 1.2 V
R
AIN
Analog Input Resistance 100 M