Datasheet

MC9RS08KB12 Series MCU Data Sheet, Rev. 5
Electrical Characteristics
Freescale Semiconductor30
Figure 34. ADC Input Impedance Equivalency Diagram
ADC
conversion
clock Freq.
High speed (ADLPC=0) f
ADCK
0.4 — 8.0 MHz
Low power (ADLPC=1) 0.4 — 4.0
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.
Table 15. 10-Bit ADC Characteristics (V
REFH
= V
DDAD
, V
REFL
= V
SSAD
, 2.7 V < V
DDAD
< 5.5 V)
C Characteristic Conditions Symb Min Typ
1
Max Unit Comment
T Supply Current
ADLPC = 1
ADLSMP = 1
ADCO = 1
I
DDAD
—133—μA
T Supply Current
ADLPC = 1
ADLSMP = 0
ADCO = 1
I
DDAD
—218—μA
T Supply Current
ADLPC = 0
ADLSMP = 1
ADCO = 1
I
DDAD
—327—μA
Table 14. 10-Bit ADC Operating Conditions (continued)
Characteristic Conditions Symb Min Typ
1
Max Unit Comment
+
–
+
–
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