參數(shù)資料
型號: MC9S12DG256MPVE
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP112
封裝: LQFP-112
文件頁數(shù): 4/132頁
文件大?。?/td> 782K
代理商: MC9S12DG256MPVE
MC9S12DT256 Device User Guide — V03.07
101
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
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
()
Vi Vi1
1LSB
------------------------ 1
=
INL n
()
DNL i
()
i1
=
n
Vn V0
1LSB
-------------------- n
==
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