MC9S08DE60 Datasheet, PDF (378/412 Pages) Freescale Semiconductor, Inc – Microcontrollers

Appendix A Electrical Characteristics
Table A-9. 12-bit ADC Operating Conditions (continued)
Characteristic
Conditions
Symb
Min
Typ¹
Max
Unit
Comment
ADC
Conversion
Clock Freq.
High Speed (ADLPC=0)
Low Power (ADLPC=1)
f_ADCK
0.4
—
8.0
MHz
0.4
—
4.0
1 _{Typical values assume VDDAD = 5.0V, Temp = 25°C, fADCK=1.0MHz unless otherwise stated. Typical values are for reference}
only and are not tested in production.
2 _{DC potential difference.}
R_AS
V_AS
+
–
Z_AS
C_AS
SIMPLIFIED
INPUT PIN EQUIVALENT
CIRCUIT
+
V_ADIN
–
Pad
leakage
due to
input
protection
Z_ADIN
SIMPLIFIED
CHANNEL SELECT
CIRCUIT
R_ADIN
ADC SAR
ENGINE
INPUT PIN
INPUT PIN
INPUT PIN
R_ADIN
R_ADIN
R_ADIN
C_ADIN
Figure A-1. ADC Input Impedance Equivalency Diagram
MC9S08DE60 Series Data Sheet, Rev. 3
378
Freescale Semiconductor