MC9S12P128 Datasheet, PDF(512/564 Page) Freescale Semiconductor, Inc – S12 Microcontrollers

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MC9S12P128 Datasheet, PDF (512/564 Pages) Freescale Semiconductor, Inc – S12 Microcontrollers

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Electrical Characteristics

Table A-15. ATD Electrical Characteristics

Conditions are shown in Table A-4 unless otherwise noted

Num C

Rating

Symbol

Min

1 C Max input source resistance(1)

2 D Total input capacitance Non sampling

Total input capacitance Sampling

3 D Input internal Resistance

RS

â

CINN

â

CINS

â

RINA

-

4 C Disruptive analog input current

INA

-2.5

5 C Coupling ratio positive current injection

Kp

â

6 C Coupling ratio negative current injection

Kn

â

1. 1 Refer to A.2.2.2 for further information concerning source resistance

Typ

Max

Unit

â

1

Kâ¦

â

10

pF

â

16

5

15

kâ¦

â

2.5

mA

â

1E-4

A/A

â

5E-3

A/A

A.2.3 ATD Accuracy

Table A-16. and Table A-17. specifies the ATD conversion performance excluding any errors due to

current injection, input capacitance and source resistance.

S12P-Family Reference Manual, Rev. 1.12

512

Freescale Semiconductor

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