MC9S08QE8 Datasheet, PDF (24/46 Pages) Freescale Semiconductor, Inc – 8-Bit HCS08 Central Processor Unit

Electrical Characteristics
Table 14. Analog Comparator Electrical Specifications (continued)
C
Characteristic
D Analog input voltage
P Analog input offset voltage
C Analog comparator hysteresis
P Analog input leakage current
C Analog comparator initialization delay
Symbol
V_AIN
V_AIO
V_H
I_ALKG
t_AINIT
Min
V_SS – 0.3
—
3.0
—
—
Typical
—
20
9.0
—
—
Max
Unit
V_DD
V
40
mV
15.0
mV
1.0
μA
1.0
μs
3.12 ADC Characteristics
Table 15. 12-bit ADC Operating Conditions
Characteristic
Conditions
Symb
Min
Typ¹
Max Unit
Comment
Supply voltage Absolute
V_DDAD
1.8
—
3.6
V
—
Delta to V_DD (V_DD-V_DDAD)² ΔV_DDAD –100
0
+100 mV
—
Ground voltage Delta to V_SS (V_SS-V_SSAD)² ΔV_SSAD –100
0
+100 mV
—
Ref Voltage
High
—
V_REFH
1.8
V_DDAD V_DDAD
V
—
Input Voltage —
Input
Capacitance
—
V_ADIN
V_REFL
—
V_REFH
V
—
C_ADIN
—
4.5
5.5
pF
—
Input
Resistance
—
R_ADIN
—
5
7
kΩ
—
Analog Source
Resistance
12 bit mode
f_ADCK > 4MHz
f_ADCK < 4MHz
—
—
2
—
—
5
10 bit mode
f_ADCK > 4MHz
f_ADCK < 4MHz
R_AS
—
—
kΩ External to MCU
5
—
—
10
8 bit mode (all valid f_ADCK)
—
—
10
ADC
High Speed (ADLPC=0)
0.4
—
8.0
Conversion
Clock Freq.
Low Power (ADLPC=1)
f_ADCK
MHz
0.4
—
4.0
—
1 _{Typical values assume VDDAD = 3.0 V, Temp = 25 °C, fADCK=1.0 MHz unless otherwise stated. Typical values are for}
reference only and are not tested in production.
2 _{DC potential difference.}
MC9S08QE8 Series, Rev. 3
24
Preliminary
Freescale Semiconductor
Subject to Change Without Notice