參數(shù)資料
型號： LPC2478FET208
廠商： NXP Semiconductors N.V.
元件分類： 數(shù)學(xué)處理器
英文描述： Single-chip 16-bit-32-bit micro; 512 kB flash, Ethernet, CAN, LCD, USB 2.0 device-host-OTG, external memory interface
封裝： LPC2478FBD208<SOT459-1 (LQFP208)|<<http://www.nxp.com/packages/SOT459-1.html<1<Always Pb-free,;LPC2478FET208<SOT950-1 (TFBGA208)|<<http://www.nxp.com/packages/SOT950-1.ht
文件頁數(shù)： 70/93頁
文件大?。?/td> 751K
代理商： LPC2478FET208
LPC2478
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 3 — 12 September 2011
70 of 93
NXP Semiconductors
LPC2478
Single-chip 16-bit/32-bit microcontroller
12. ADC electrical characteristics
[1]
Conditions: V
SSA
= 0 V, V
DDA
= 3.3 V.
The ADC is monotonic, there are no missing codes.
[2]
[3]
The differential linearity error (E
D
) is the difference between the actual step width and the ideal step width. See
Figure 19
.
The integral non-linearity (E
L(adj)
) is the peak difference between the center of the steps of the actual and the ideal transfer curve after
appropriate adjustment of gain and offset errors. See
Figure 19
.
[4]
[5]
The offset error (E
O
) is the absolute difference between the straight line which fits the actual curve and the straight line which fits the
ideal curve. See
Figure 19
.
[6]
The gain error (E
G
) is the relative difference in percent between the straight line fitting the actual transfer curve after removing offset
error, and the straight line which fits the ideal transfer curve. See
Figure 19
.
[7]
The absolute error (E
T
) is the maximum difference between the center of the steps of the actual transfer curve of the non-calibrated
ADC and the ideal transfer curve. See
Figure 19
.
[8]
See
Figure 20
.
Table 18.
V
DDA
= 2.5 V to 3.6 V; T
amb
=
40
C to +85
C unless otherwise specified; ADC frequency 4.5 MHz.
Symbol
Parameter
Conditions
V
IA
analog input voltage
C
ia
analog input capacitance
E
D
differential linearity error
E
L(adj)
integral non-linearity
E
O
offset error
E
G
gain error
E
T
absolute error
R
vsi
voltage source interface
resistance
ADC static characteristics
Min
0
-
Typ
-
-
-
-
-
-
-
-
Max
V
DDA
1
1
2
3
0.5
4
40
Unit
V
pF
LSB
LSB
LSB
%
LSB
k
[1][2][3]
-
[1][4]
-
[1][5]
-
[1][6]
-
[1][7]
-
[8]
-
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