MC9S12XD256MAL Datasheet, PDF (1254/1348 Pages) Freescale Semiconductor, Inc – Freescale’s Scalable Controller Area Network

Appendix A Electrical Characteristics
A.2.3 ATD Accuracy
A.2.3.1 5-V Range
Table A-15 specifies the ATD conversion performance excluding any errors due to current injection, input
capacitance, and source resistance.
Table A-15. 5-V ATD Conversion Performance
Conditions are shown in Table A-4 unless otherwise noted
V_REF = V_RH–V_RL = 5.12 V. Resulting to one 8-bit count = 20 mV and one 10-bit count = 5 mV
f_ATDCLK = 2.0 MHz
Num C
Rating
Symbol
Min
Typ
Max
Unit
1 P 10-bit resolution
LSB
—
5
2 P 10-bit differential nonlinearity
DNL
–1
—
3 P 10-bit integral nonlinearity
4 P 10-bit absolute error¹
INL
–2.5
±1.5
AE
–3
±2.0
5 P 8-bit resolution
LSB
—
20
6 P 8-bit differential nonlinearity
DNL
–0.5
—
7 P 8-bit integral nonlinearity
INL
–1.0
±0.5
8 P 8-bit absolute error¹
AE
–1.5
±1.0
1 _{These values include the quantization error which is inherently 1/2 count for any A/D converter.}
—
mV
1
Counts
2.5 Counts
3
Counts
—
mV
0.5 Counts
1.0 Counts
1.5 Counts
A.2.3.2 3.3-V Range
Table A-16 specifies the ATD conversion performance excluding any errors due to current injection, input
capacitance, and source resistance.
Table A-16. 3.3-V ATD Conversion Performance
Conditions are shown in Table A-4 unless otherwise noted
V_REF = V_RH–V_RL = 3.328 V. Resulting to one 8-bit count = 13mV and one 10-bit count = 3.25 mV
f_ATDCLK = 2.0 MHz
Num C
Rating
Symbol
Min
Typ
Max
Unit
1 P 10-bit resolution
LSB
—
3.25
2 P 10-bit differential nonlinearity
DNL
–1.5
—
3 P 10-bit integral nonlinearity
4 P 10-bit absolute error¹
INL
–3.5
±1.5
AE
–5
±2.5
5 P 8-bit resolution
LSB
—
13
6 P 8-bit differential nonlinearity
DNL
–0.5
—
7 P 8-bit integral nonlinearity
INL
–1.5
±1.0
8 P 8-bit absolute error¹
AE
–2.0
±1.5
1 _{These values include the quantization error which is inherently 1/2 count for any A/D converter.}
—
mV
1.5 Counts
3.5 Counts
5
Counts
—
mV
0.5 Counts
1.5 Counts
2.0 Counts
1256
MC9S12XDP512 Data Sheet, Rev. 2.21
Freescale Semiconductor