參數(shù)資料
型號(hào)： LPC2926FBD144
廠商： NXP SEMICONDUCTORS
元件分類(lèi)： 微控制器/微處理器
英文描述： ARM9 microcontroller with CAN, LIN, and USB
中文描述： 32-BIT, FLASH, 125 MHz, RISC MICROCONTROLLER, PQFP144
封裝： 20 X 20 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT486-1, LQFP-144
文件頁(yè)數(shù)： 66/95頁(yè)
文件大?。?/td> 1855K
代理商： LPC2926FBD144
LPC2926_27_29
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 5 — 28 September 2010
66 of 95
NXP Semiconductors
LPC2926/2927/2929
ARM9 microcontroller with CAN, LIN, and USB
[1]
Conditions: V
SS(IO)
= 0 V, V
DDA(ADC3V3)
= 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 17
.
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 17
.
[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 17
.
[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 17
.
[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 17
.
[8]
See
Figure 16
.
Table 35.
V
DDA(ADC3V3)
= 3.0 V to 3.6 V; T
amb
=
40
°
C to +85
°
C unless otherwise specified; ADC frequency 4.5 MHz.
Symbol
Parameter
Conditions
V
VREFN
voltage on pin VREFN
V
VREFP
voltage on pin VREFP
V
IA
analog input voltage
for 3.3 V ADC1/2
Z
i
input impedance
between V
VREFN
and
V
VREFP
between V
VREFN
and
V
DDA(ADC5V0)
C
ia
analog input capacitance
for ADC0/1/2
E
D
differential linearity error
for ADC0/1/2
E
L(adj)
integral non-linearity
for ADC0/1/2
E
O
offset error
for ADC0/1/2
E
G
gain error
for ADC0/1/2
E
T
absolute error
for ADC0/1/2
R
vsi
voltage source interface
resistance
FSR
full scale range
for ADC0/1/2
ADC static characteristics
Min
0
V
VREFN
+ 2 -
V
VREFN
4.4
Typ
-
Max
V
VREFP
2
V
DDA(ADC3V3)
V
VREFP
-
Unit
V
V
V
k
Ω
-
-
13.7
-
23.6
k
Ω
-
-
-
-
-
-
-
-
1
±
1
±
2
±
3
±
0.5
±
4
40
pF
LSB
LSB
LSB
%
LSB
k
Ω
[1][2][3]
-
[1][4]
-
[1][5]
-
[1][6]
-
[1][7]
-
for ADC0/1/2
[8]
-
2
-
10
bit
Fig 16. Suggested ADC interface - LPC2926/2927/2929 ADC1/2 IN[y] pin
LPC2XXX
ADC IN[y]
SAMPLE
ADC IN[y]
20 k
Ω
3 pF
5 pF
Rvsi
V
SS(IO),
V
SS(CORE)
VEXT
002aae280
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