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MC9S12E128 Datasheet, PDF (592/606 Pages) Freescale Semiconductor, Inc – HCS12 Microcontrollers | |||
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Appendix A Electrical Characteristics
A.6.4 ATD Accuracy â 5V Range
Table A-22 speciï¬es 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
VREF = VRH - VRL = 5.12V. Resulting to one 8 bit count = 20mV and one 10 bit count = 5mV
fATDCLK = 2.0MHz
Num C
Rating
Symbol
Min
Typ
Max
Unit
1 P 10-Bit Resolution
LSB
â
5
2 P 10-Bit Differential Nonlinearity
DNL
â1
â
3 P 10-Bit Integral Nonlinearity
4 P 10-Bit Absolute Error1
INL
â2.0
â
AE
â2.5
â
5 C 10-Bit Absolute Error at fATDCLK= 4MHz
6 P 8-Bit Resolution
AE
â
±7.0
LSB
â
20
7 P 8-Bit Differential Nonlinearity
DNL
â0.5
â
8 P 8-Bit Integral Nonlinearity
INL
â1.0
±0.5
9 P 8-Bit Absolute Error1
AE
â1.5
±1.0
1 These values include quantization error which is inherently 1/2 count for any A/D converter.
â
mV
1
Counts
2.0
Counts
2.5
Counts
â
Counts
â
mV
0.5
Counts
1.0
Counts
1.5
Counts
A.6.5 ATD Accuracy â 3.3V Range
Table A-23 speciï¬es the ATD conversion performance excluding any errors due to current injection, input
capacitance and source resistance.
Table A-23. 3.3V ATD Conversion Performance
Conditions are shown in Table A-4 unless otherwise noted
VREF = VRH - VRL = 3.328V. Resulting to one 8 bit count = 13mV and one 10 bit count = 3.25mV
fATDCLK = 2.0MHz
Num C
Rating
Symbol
Min
Typ
Max
Unit
1 P 10-Bit Resolution
LSB
â
3.25
2 P 10-Bit Differential Nonlinearity
DNL
â1.5
3 P 10-Bit Integral Nonlinearity
4 P 10-Bit Absolute Error1
INL
â3.5
±1.5
AE
â5
±2.5
5 C 10-Bit Absolute Error at fATDCLK= 4MHz
6 P 8-Bit Resolution
AE
â
±7.0
LSB
â
13
7 P 8-Bit Differential Nonlinearity
DNL
â0.5
â
8 P 8-Bit Integral Nonlinearity
INL
â1.5
±1.0
9 P 8-Bit Absolute Error1
AE
â2.0
±1.5
1 These values include the quantization error which is inherently 1/2 count for any A/D converter.
â
mV
1.5
Counts
3.5
Counts
5
Counts
â
Counts
â
mV
0.5
Counts
1.5
Counts
2.0
Counts
MC9S12E128 Data Sheet, Rev. 1.07
592
Freescale Semiconductor
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