參數資料
型號： MC9S12H256VFVR2
廠商： MOTOROLA INC
元件分類： 微控制器/微處理器
英文描述： 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP144
封裝： LQFP-144
文件頁數： 127/131頁
文件大小： 2133K
代理商： MC9S12H256VFVR2
MC9S12H256 Device User Guide — V01.16
95
A.2.3 ATD accuracy
Table A-10 specifies the ATD conversion performance excluding any errors due to current injection,
input capacitance and source resistance.
For the following definitions see also Figure A-1.
Differential Non-Linearity (DNL) is defined as the difference between two adjacent switching steps.
The Integral Non-Linearity (INL) is defined as the sum of all DNLs:
Table A-10 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
5
mV
2
P 10-Bit Differential Nonlinearity
DNL
–1
1
Counts
3
P 10-Bit Integral Nonlinearity
INL
–2.5
±1.5
2.5
Counts
4P 10-Bit Absolute Error1
NOTES:
1. These values include the quantization error which is inherently 1/2 count for any A/D converter.
AE
–3
±2.0
3
Counts
5
P 8-Bit Resolution
LSB
20
mV
6
P 8-Bit Differential Nonlinearity
DNL
–0.5
0.5
Counts
7
P 8-Bit Integral Nonlinearity
INL
–1.0
±0.5
1.0
Counts
8P 8-Bit Absolute Error1
AE
–1.5
±1.0
1.5
Counts
DNL i
()
V
i
V
i1
–
1LSB
------------------------
1
–
=
INL n
()
DNL i
()
i1
=
n
∑
V
n
V
0
–
1LSB
--------------------
n
–
==
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