Datasheet

MC9S08SF4 Series MCU Data Sheet, Rev. 4
ADC Characteristics
Freescale Semiconductor20
3.10 ADC Characteristics
Table 11. ADC Characteristics
Num C Characteristic Conditions Symb Min Typical
1
Max Unit Comment
1
D
Supply current
ADLPC = 1
ADLSMP = 1
ADCO = 1
V
DDA
3.6 V
(3.0 V Typ)
I
DDA
— 110 —
A
Over
temperature
(Typ 25C)
D
V
DDA
5.5 V
(5.0 V Typ)
— 130 —
2
D
Supply current
ADLPC = 1
ADLSMP = 0
ADCO = 1
V
DDA
3.6 V
(3.0 V Typ)
I
DDA
— 200 —
A
D
V
DDA
5.5 V
(5.0 V Typ)
— 220 —
3
D
Supply current
ADLPC = 0
ADLSMP = 1
ADCO = 1
V
DDA
3.6 V
(3.0 V Typ)
I
DDA
— 320 —
A
D
V
DDA
5.5 V
(5.0 V Typ)
— 360 —
4
D
Supply current
ADLPC = 0
ADLSMP = 0
ADCO = 1
V
DDA
3.6V
(3.0 V Typ)
I
DDA
— 580 —
A
D
V
DDA
5.5V
(5.0 V Typ)
— 660 —
5 D Supply current
Stop, Reset,
Module Off
I
DDA
— <1 100 nA
6
D Ref voltage high — V
REFH
2.7 V
DDA
V
DDA
V
D Ref coltage low — V
REFL
V
SSA
V
SSA
V
SSA
V
7
D
ADC conversion
clock
High speed
(ADLPC = 0)
f
ADCK
0.4 — 8.0
MHz
t
ADCK
=
1/f
ADCK
D
Low power
(ADLPC = 1)
0.4 — 4.0
8
D
ADC
asynchronous
clock source
High speed
(ADLPC = 0)
f
ADACK
2.546.6
MHz
t
ADACK
=
1/f
ADACK
D
Low power
(ADLPC = 1)
1.25 2 3.3
9
D
Conversion time
Short sample
(ADLSMP = 0)
t
ADC
20 20 23
t
ADCK
cycles
Add 2 to 5
t
Bus
=1/f
Bus
cycles
D
Long sample
(ADLSMP = 1)
40 40 43
10
D
Sample time
Short sample
(ADLSMP = 0)
t
ADS
444
t
ADCK
cycles
D
Long sample
(ADLSMP = 1)
24 24 24
11 D Input voltage — V
ADIN
V
REFL
—V
REFH
V
12 D
Input
capacitance
—C
ADIN
— 7 10 pF Not Tested
13 D Input impedance — R
ADIN
—515k Not Tested
14 D
Analog source
impedance
—R
AS
——10
2
k
External to
MCU