參數(shù)資料
型號： 9S12XDP512DGV2
英文描述： Device User Guide for Mask Set L15Y - (Second Silicon - Enhanced Feature Set)
中文描述： 設備用戶指南掩模組L15Y - （二硅-增強的功能集）
文件頁數(shù)： 123/152頁
文件大小： 1231K
代理商： 9S12XDP512DGV2
123
1.
A current is injected into the channel being converted. The channel being stressed has conversion
valuesof$3FF($FFin8-bitmode)foranaloginputsgreaterthanV
RH
and$000forvalueslessthan
V
RL
unless the current is higher than specified as disruptive condition.
Current is injected into pins in the neighborhood of the channel being converted. A portion of this
current is picked up by the channel (coupling ratio K), This additional current impacts the accuracy
of the conversion depending on the source resistance.
The additional input voltage error on the converted channel can be calculated as V
ERR
= K * R
S
*
I
INJ
, with I
INJ
being the sum of the currents injected into the two pins adjacent to the converted
channel.
Table A-12 ATD Electrical Characteristics
2.
A.2.3 ATD accuracy
A.2.3.1 5V Range
Table A-13
specifies the ATD conversion performance excluding any errors due to current injection,
input capacitance and source resistance.
Table A-13 ATD Conversion Performance 5V
Conditions are shown in
Table A-4
unless otherwise noted
Num C
Rating
Symbol
Min
Typ
Max
Unit
1
C Max input Source Resistance
R
S
-
-
1
K
2
T
Total Input Capacitance
Non Sampling
Sampling
C
INN
C
INS
10
22
pF
3
C Disruptive Analog Input Current
I
NA
-2.5
2.5
mA
4
C Coupling Ratio positive current injection
K
p
TBD
A/A
5
C Coupling Ratio negative current injection
K
n
TBD
A/A
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
–2.5
±
1.5
2.5
Counts
4
P 10-Bit Absolute Error
1
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
8
P 8-Bit Absolute Error
1
AE
-1.5
±
1.0
1.5
Counts
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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