Datasheet

Appendix A Electrical Characteristics
MC9S08QG8 and MC9S08QG4 Data Sheet, Rev. 5
Freescale Semiconductor 283
Figure A-17. ADC Input Impedance Equivalency Diagram
Table A-14. 3 Volt 10-bit ADC Characteristics
Characteristic Conditions Symb Min Typ
1
Max Unit Comment
Supply current
ADLPC=1
ADLSMP=1
ADCO=1
I
DDAD
—120—μA
Supply current
ADLPC=1
ADLSMP=0
ADCO=1
I
DDAD
—202—μA
Supply current
ADLPC=0
ADLSMP=1
ADCO=1
I
DDAD
—288—μA
Supply current
ADLPC=0
ADLSMP=0
ADCO=1
I
DDAD
— 532 646 μA
ADC asynchronous
clock source
High speed (ADLPC=0) f
ADACK
23.35MHzt
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