ATMEGA88_1 Datasheet, PDF (5/10 Pages) ATMEL Corporation – 8-bit Microcontroller with 8K Bytes In-System Programmable Flash

ATmega88 Automotive
1.4 ADC Characteristics
T_A = –40°C to +85°C, V_CC = 1.8V to 5.5V (unless otherwise noted)
Parameters
Test Conditions
Symbol
Resolution
–40°C to +85°C -
1.8V to 2.7V
ADC clock = 125 kHz
–40°C to +85°C -
2.7V to 5.5V
ADC clock = 200 kHz
Absolute accuracy
Integral Non Linearity
Differential Non Linearity
Gain error
V_CC = 1.8V, V_Ref = 1.8V
V_CC = 4.0V, V_Ref = 4.0V
V_CC = 1.8V, V_Ref = 1.8V
V_CC = 4.0V, V_Ref = 4.0V
V_CC = 1.8V, V_Ref = 1.8V
V_CC = 4.0V, V_Ref = 4.0V
TUE
INL
DNL
Offset error
Clock frequency
Analog Supply Voltage
Reference Voltage
Input Voltage
Input Bandwidth
V_CC = 1.8V to 2.7V
V_CC = 2.7V to 5.5V
AV_CC
V_REF
V_IN
Internal Voltage Reference
Reference Input Resistance
Analog Input Resistance
V_INT
R_REF
R_AIN
Min
–3.5
–3.5
50
50
V_CC – 0.3
1.0
GND
1.0
22.4
Typ
Max
Unit
10
Bits
10
Bits
2.2
3.5
LSB
2.1
3.5
LSB
0.6
2.0
LSB
0.5
1.5
LSB
0.4
1.0
LSB
0.3
0.7
LSB
–1.5
3.5
LSB
2.0
3.5
LSB
125
kHz
200
kHz
V_CC + 0.3
V
AV_CC
V
V_REF – 50mV
V
38.5
kHz
1.1
1.2
V
32
41.6
kΩ
100
MΩ
5
7738C–AVR–11/09