Datasheet

182
7701F–AVR–10/12
Atmel ATtiny24/44/84 [Preliminary]
22.5 ADC Characteristics – Preliminary Data
Table 22-6. 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 (Including
INL, DNL, quantization error,
gain and offset error)
Single-ended conversion
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200kHz
2.0 4.0 LSB
Single-ended conversion
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200kHz
Noise Reduction Mode
2.0 4.0 LSB
INL
Integral Non-linearity (INL)
Single-ended conversion
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200kHz
0.5 1.5 LSB
DNL
Differential Non-linearity (DNL)
Single-ended conversion
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200kHz
0.3 0.7 LSB
Gain Error
Single-ended conversion
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200kHz
-5.0 -3.0 5.0 LSB
Offset Error
Single-ended conversion
V
REF
= 4V, V
CC
= 4V,
ADC clock = 200kHz
-3.5 1.5 3.5 LSB
Conversion Time Free running conversion 65 260 µs
Clock Frequency 50 200 kHz
Vref External Voltage Reference 2.56 AVCC V
V
IN
Input Voltage GND V
REF
V
V
INT
Internal Voltage Reference 1.0 1.1 1.2 V
R
AIN
Analog Input Resistance 100 MΩ