Datasheet

Electrical Characteristics
MC9S08QE32 Series MCU Data Sheet, Rev. 7
Freescale Semiconductor 27
Figure 21. ADC Input Impedance Equivalency Diagram
Table 17. ADC Characteristics (V
REFH
= V
DDAD
, V
REFL
= V
SSAD
)
C Characteristic Conditions Symbol Min Typ
1
Max Unit Comment
T
Supply current
ADLPC = 1
ADLSMP = 1
ADCO = 1
I
DDAD
—120 — A
T
Supply current
ADLPC = 1
ADLSMP = 0
ADCO = 1
I
DDAD
—202 — A
T
Supply current
ADLPC = 0
ADLSMP = 1
ADCO = 1
I
DDAD
—288 — A
P
Supply current
ADLPC = 0
ADLSMP = 0
ADCO = 1
I
DDAD
— 0.532 1 mA
P
ADC
asynchronous
clock source
High speed (ADLPC = 0)
f
ADACK
23.3 5
MHz
t
ADACK
=
1/f
ADACK
Low power (ADLPC = 1) 1.25 2 3.3
+
–
+
–
V
AS
R
AS
C
AS
V
ADIN
Z
AS
Pad
leakage
due to
input
protection
Z
ADIN
SIMPLIFIED
INPUT PIN EQUIVALENT
CIRCUIT
R
ADIN
ADC SAR
ENGINE
SIMPLIFIED
CHANNEL SELECT
CIRCUIT
INPUT PIN
R
ADIN
C
ADIN
INPUT PIN
R
ADIN
INPUT PIN
R
ADIN