Datasheet
Appendix A Electrical Characteristics
MC9S12E128 Data Sheet, Rev. 1.07
592 Freescale Semiconductor
A.6.4 ATD Accuracy — 5V Range
Table A-22 specifies the ATD conversion performance excluding any errors due to current injection, input
capacitance and source resistance.
A.6.5 ATD Accuracy — 3.3V Range
Table A-23 specifies the ATD conversion performance excluding any errors due to current injection, input
capacitance and source resistance.
Table A-22. 5V ATD Conversion Performance
Conditions are shown in Table A-4 unless otherwise noted
V
REF
= V
RH
- V
RL
= 5.12V. Resulting to one 8 bit count = 20mV and one 10 bit count = 5mV
f
ATDCLK
= 2.0MHz
Num C Rating Symbol Min Typ Max Unit
1 P 10-Bit Resolution LSB — 5 — mV
2 P 10-Bit Differential Nonlinearity DNL –1 — 1 Counts
3 P 10-Bit Integral Nonlinearity INL –2.0 — 2.0 Counts
4 P 10-Bit Absolute Error
1
1
These values include quantization error which is inherently 1/2 count for any A/D converter.
AE –2.5 — 2.5 Counts
5 C 10-Bit Absolute Error at f
ATDCLK
= 4MHz AE — ±7.0 — Counts
6 P 8-Bit Resolution LSB — 20 — mV
7 P 8-Bit Differential Nonlinearity DNL –0.5 — 0.5 Counts
8 P 8-Bit Integral Nonlinearity INL –1.0 ±0.5 1.0 Counts
9 P 8-Bit Absolute Error
1
AE –1.5 ±1.0 1.5 Counts
Table A-23. 3.3V ATD Conversion Performance
Conditions are shown in Table A-4 unless otherwise noted
V
REF
= V
RH
- V
RL
= 3.328V. Resulting to one 8 bit count = 13mV and one 10 bit count = 3.25mV
f
ATDCLK
= 2.0MHz
Num C Rating Symbol Min Typ Max Unit
1 P 10-Bit Resolution LSB — 3.25 — mV
2 P 10-Bit Differential Nonlinearity DNL –1.5 1.5 Counts
3 P 10-Bit Integral Nonlinearity INL –3.5 ±1.5 3.5 Counts
4 P 10-Bit Absolute Error
1
1
These values include the quantization error which is inherently 1/2 count for any A/D converter.
AE –5 ±2.5 5 Counts
5 C 10-Bit Absolute Error at f
ATDCLK
= 4MHz AE — ±7.0 — Counts
6 P 8-Bit Resolution LSB — 13 — mV
7 P 8-Bit Differential Nonlinearity DNL –0.5 — 0.5 Counts
8 P 8-Bit Integral Nonlinearity INL –1.5 ±1.0 1.5 Counts
9 P 8-Bit Absolute Error
1
AE –2.0 ±1.5 2.0 Counts