Datasheet

MC9S08QE128 Series Data Sheet, Rev. 7
Electrical Characteristics
Freescale Semiconductor30
3.11 Analog Comparator (ACMP) Electricals
3.12 ADC Characteristics
Table 16. Analog Comparator Electrical Specifications
C Characteristic Symbol Min Typical Max Unit
D Supply voltage V
DD
1.80 — 3.6 V
C Supply current (active) I
DDAC
—2035μA
D Analog input voltage V
AIN
V
SS
– 0.3 — V
DD
V
C Analog input offset voltage V
AIO
20 40 mV
C Analog comparator hysteresis V
H
3.0 9.0 15.0 mV
P Analog input leakage current I
ALKG
——1.0μA
C Analog comparator initialization delay t
AINIT
——1.0μs
Table 17. 12-bit ADC Operating Conditions
C Characteristic Conditions Symb Min Typ
1
1
Typical values assume V
DDAD
= 3.0V, Temp = 25°C, f
ADCK
=1.0MHz unless otherwise stated. Typical values are for reference
only and are not tested in production.
Max Unit Comment
D
Supply voltage Absolute V
DDAD
1.8 — 3.6 V
Delta to V
DD
(V
DD
-V
DDAD
)
2
2
DC potential difference.
ΔV
DDAD
-100 0 +100 mV
D Ground voltage Delta to V
SS
(V
SS
-V
SSAD
)
2
ΔV
SSAD
-100 0 +100 mV
D Ref Voltage High V
REFH
1.8 V
DDAD
V
DDAD
V
D Ref Voltage Low V
REFL
V
SSAD
V
SSAD
V
SSAD
V
D Input Voltage V
ADIN
V
REFL
—V
REFH
V
C
Input
Capacitance
C
ADIN
—4.55.5
pF
C Input Resistance R
ADIN
—5 7kΩ
C
Analog Source
Resistance
12 bit mode
f
ADCK
> 4MHz
f
ADCK
< 4MHz
R
AS
—
—
—
—
2
5
kΩ
External to MCU
10 bit mode
f
ADCK
> 4MHz
f
ADCK
< 4MHz
—
—
—
—
5
10
8 bit mode (all valid f
ADCK
)——10
D
ADC Conversion
Clock Freq.
High Speed (ADLPC=0) f
ADCK
0.4 — 8.0
MHz
Low Power (ADLPC=1) 0.4 — 4.0