Datasheet

Appendix A Electrical Characteristics
MC9S08QG8 and MC9S08QG4 Data Sheet, Rev. 5
282 Freescale Semiconductor
A.9 Analog Comparator (ACMP) Electricals
A.10 ADC Characteristics
Table A-12. Analog Comparator Electrical Specifications
Characteristic Symbol Min Typical Max Unit
Supply voltage
V
DD
1.80 — 3.6 V
Supply current (active)
I
DDAC
—20—μA
Analog input voltage V
AIN
V
SS
– 0.3 — V
DD
V
Analog input offset voltage V
AIO
20 40 mV
Analog comparator hysteresis V
H
3.0 9.0 15.0
mV
Analog input leakage current
I
ALKG
——1.0μA
Analog comparator initialization delay t
AINIT
——1.0μs
Table A-13. 3 Volt 10-bit ADC Operating Conditions
Characteristic Conditions Symbol Min Typical
1
1
Typical values assume V
DD
= 3.0 V, Temp = 25°C, f
ADCK
=1.0 MHz unless otherwise stated. Typical values are for reference only
and are not tested in production.
Max Unit Comment
Supply voltage Absolute V
DD
1.8 — 3.6 V
Input voltage V
ADIN
V
SS
—V
DD
V
Input capacitance C
ADIN
—4.55.5pF
Input resistance R
ADIN
—5 7kΩ
Analog source
resistance
10 bit mode
f
ADCK
> 4MHz
f
ADCK
< 4MHz
R
AS
—
—
—
—
5
10
kΩ External to
MCU
8 bit mode (all valid f
ADCK
)——10
ADC conversion
clock frequency
High Speed (ADLPC=0) f
ADCK
0.4 — 8.0 MHz
Low Power (ADLPC=1) 0.4 — 4.0