Datasheet

248
7728G–AVR–06/10
ATtiny87/ATtiny167
22.7 Current Source Characteristics
22.8 ADC Characteristics
Table 22-8. Current Source Characteristics
Symbol Parameter Condition Min. Typ. Max. Units
I
ISRC
Current
Vcc = 2.7 V / 5.5 V
T
=-40°C / +125°C
94 106 µA
t
ISRC
Current Source start-up time
Vcc = 4.5
T
A
= 25°C
60 µs
Table 22-9. ADC Characteristics, Single Ended Channels (-40°C/+125°C)
Symbol Parameter Condition Min Typ Max Units
Resolution Single Ended Conversion 10 Bits
TUE Absolute accuracy
Vcc = 4V, VRef = 4V,
ADC clock = 200 kHz
2.0 3.5 LSB
INL Integral Non Linearity
Vcc = 4V, VRef = 4V,
ADC clock = 200 kHz
0.6 2.0 LSB
DNL Differential Non Linearity
Vcc = 4V, VRef = 4V,
ADC clock = 200 kHz
0.3 0.8 LSB
Gain error
Vcc = 4V, VRef = 4V,
ADC clock = 200 kHz
-6.0 -2.5 2.0 LSB
Offset error
Vcc = 4V, VRef = 4V,
ADC clock = 200 kHz
-3.5 1.5 3.5 LSB
V
REF
Ref voltage 2.56 AVcc V
Input bandwidth 38.5 kHz
V
INT
Internal voltage 2.4 2.56 2.7 V
R
REF
Reference input resistance 32 kΩ
R
AIN
Analog input resistance 100 MΩ