Atmel ATtiny25 User Manual

153
7598H–AVR–07/09
ATtiny25/45/85
22.4 ADC Characteristics – Preliminary Data
Note: 1. All DC Characteristics contained in this data sheet result from actual silicon characterization.
2. Minimum for AVCC is 2.7V.
3. Maximum for AVCC is 5.5V.
Table 22-3. ADC Characteristics, Single Ended Channels. -40°C - 125°C.
(1)
. PRELIMINARY
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
AVCC Analog Supply Voltage V
CC
- 0.3
(2)
V
CC
+ 0.3
(3)
V
V
IN
Input Voltage GND V
REF
-50mV V
Input Bandwidth 38.5 kHz
V
INT
Internal Voltage Reference 1.0 1.1 1.2 V
R
AIN
Analog Input Resistance 100 MΩ

Atmel ATtiny25 Specifications

General

Brand	Atmel
Model	ATtiny25
Category	Microcontrollers
Language	English