Datasheet

249
7728G–AVR–06/10
ATtiny87/ATtiny167
Table 22-10. ADC Characteristics, Differential Channels (-40°C/+125°C)
Symbol Parameter Condition Min Typ Max Units
Resolution Differential conversion 8
TUE Absolute accuracy
Gain = 8x, BIPOLAR
V
REF
= 4V, Vcc = 5V
ADC clock = 200 kHz
1.0 3.0
LSB
Gain = 20x, BIPOLAR
V
REF
= 4V, Vcc = 5V
ADC clock = 200 kHz
1.5 3.5
Gain = 8x, UNIPOLAR
V
REF
= 4V, Vcc = 5V
ADC clock = 200 kHz
2.0 4.5
Gain = 20x, UNIPOLAR
V
REF
= 4V, Vcc = 5V
ADC clock = 200 kHz
2.0 6.0
INL Integral Non Linearity
Gain = 8x, BIPOLAR
V
REF
= 4V, Vcc = 5V
ADC clock = 200 kHz
0.2 1.0
LSB
Gain = 20x, BIPOLAR
V
REF
= 4V, Vcc = 5V
ADC clock = 200 kHz
0.4 1.5
Gain = 8x, UNIPOLAR
V
REF
= 4V, Vcc = 5V
ADC clock = 200 kHz
0.5 2.0
Gain = 20x, UNIPOLAR
V
REF
= 4V, Vcc = 5V
ADC clock = 200 kHz
1.6 5.0
DNL Differential Non Linearity
Gain = 8x, BIPOLAR
V
REF
= 4V, Vcc = 5V
ADC clock = 200 kHz
0.3 0.8
LSB
Gain = 20x, BIPOLAR
V
REF
= 4V, Vcc = 5V
ADC clock = 200 kHz
0.3 0.8
Gain = 8x, UNIPOLAR
V
REF
= 4V, Vcc = 5V
ADC clock = 200 kHz
0.4 0.8
Gain = 20x, UNIPOLAR
V
REF
= 4V, Vcc = 5V
ADC clock = 200 kHz
0.6 1.6
Gain error
Gain = 8x, BIPOLAR
V
REF
= 4V, Vcc = 5V
ADC clock = 200 kHz
-3.0 1.0 3.0
LSB
Gain = 20x, BIPOLAR
V
REF
= 4V, Vcc = 5V
ADC clock = 200 kHz
-4.0 1.5 4.0
Gain = 8x, UNIPOLAR
V
REF
= 4V, Vcc = 5V
ADC clock = 200 kHz
-5.0 -2.5 0.0
Gain = 20x, UNIPOLAR
V
REF
= 4V, Vcc = 5V
ADC clock = 200 kHz
-4.0 -0.5 4.0