Datasheet

Chapter 3 Electrical Characteristics and Timing Specifications
MC9S08AC128 MCU Series Data Sheet, Rev. 4
Freescale Semiconductor 21
3.8 ADC Characteristics
Table 3-8. 5 Volt 10-bit ADC Operating Conditions
Characteristic Conditions Symb Min Typ
1
1
Typical values assume V
DDAD
= 5.0 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
Supply voltage
Absolute V
DDAD
2.7 — 5.5 V
Delta to V
DD
(V
DD
–V
DDAD
)
2
2
dc potential difference.
V
DDAD
–100 0 +100 mV
Ground voltage Delta to V
SS
(V
SS
–V
SSAD
)
2
V
SSAD
–100 0 +100 mV
Ref voltage high
V
REFH
2.7
V
DDAD
V
DDAD
V
Ref voltage low
V
REFL
V
SSAD
V
SSAD
V
SSAD
V
Supply current Stop, reset, module off I
DDAD
— 0.011 1 A
Input voltage V
ADIN
V
REFL
—V
REFH
V
Input capacitance C
ADIN
—4.55.5pF
Input resistance R
ADIN
—3 5k
Analog source resistance
External to MCU
10-bit mode
f
ADCK
> 4MHz
f
ADCK
< 4MHz
R
AS
—
—
—
—
5
10
k
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
Temp Sensor
Slope
–40C to 25C
m
—
3.266 —
mV/
C
25C to 125C 3.638 —
Temp Sensor
Voltage
25CV
TEMP25 —
1.396 — V