S912XHY128F0VLM Datasheet, PDF (733/802 Pages) Freescale Semiconductor, Inc – S12 Microcontrollers

Electrical Characteristics
Table A-13. ATD Electrical Characteristics
Conditions are shown in Table A-4 unless otherwise noted
Num C
Rating
Symbol
Min
Typ
Max
Unit
1 C Max input source resistance¹
2 D Total input capacitance Non sampling
Total input capacitance Sampling
3 D Input internal Resistance
R_S
—
—
1
KΩ
C_INN
—
—
10
pF
C_INS
—
—
16
R_INA
—
5
15
kΩ
4 C Disruptive analog input current
I_NA
–2.5
—
2.5
mA
5 C Coupling ratio positive current injection
K_p
—
—
1E-4
A/A
6 C Coupling ratio negative current injection
K_n
—
—
3E-3
A/A
1 ^{Refer to A.2.2.2 for further information concerning source resistance}
A.2.3 ATD Accuracy
Table A-14 and Table A-15 specifies the ATD conversion performance excluding any errors due to
current injection, input capacitance and source resistance.
MC9S12XHY-Family Reference Manual, Rev. 1.01
Freescale Semiconductor
733