LPC2939 NXP Semiconductors, LPC2939 Datasheet - Page 68

• Manufacturer Part Number: LPC2939
• Description: The LPC2939 combine an ARM968E-S CPU core with two integrated TCM blocksoperating at frequencies of up to 125 MHz, Full-speed USB 2
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 35.
V
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
LPC2939_3
Product data sheet
Symbol
V
V
V
Z
C
E
E
E
E
E
R
FSR
DDA(ADC3V3)
Fig 16. Suggested ADC interface - LPC2939 ADC1/2 IN[y] pin
i
VREFN
VREFP
IA
D
L(adj)
O
G
T
ia
vsi
Conditions: V
The ADC is monotonic, there are no missing codes.
The differential linearity error (E
The integral non-linearity (E
appropriate adjustment of gain and offset errors. See
The offset error (E
ideal curve. See
The gain error (E
error, and the straight line which fits the ideal transfer curve. See
The absolute error (E
ADC and the ideal transfer curve. See
See
Figure
ADC static characteristics
= 3.0 V to 3.6 V; T
Parameter
voltage on pin VREFN
voltage on pin VREFP
analog input voltage
input impedance
analog input capacitance
differential linearity error
integral non-linearity
offset error
gain error
absolute error
voltage source interface
resistance
full scale range
16.
SS(IO)
Figure
G
O
) is the relative difference in percent between the straight line fitting the actual transfer curve after removing offset
= 0 V, V
) is the absolute difference between the straight line which fits the actual curve and the straight line which fits the
T
) is the maximum difference between the center of the steps of the actual transfer curve of the non-calibrated
17.
DDA(ADC3V3)
L(adj)
ADC IN[y]
amb
D
) is the peak difference between the center of the steps of the actual and the ideal transfer curve after
) is the difference between the actual step width and the ideal step width. See
=
SAMPLE

40
Figure
= 3.3 V.

All information provided in this document is subject to legal disclaimers.
C to +85
Conditions
for 3.3 V ADC1/2
between pins V
and V
between pins V
and V
for ADC0/1/2
for ADC0/1/2
for ADC0/1/2
for ADC0/1/2
for ADC0/1/2
for ADC0/1/2
for ADC0/1/2
for ADC0/1/2
17.
LPC2XXX
VREFP
DDA(ADC5V0)
V
3 pF
SS(IO),
Rev. 03 — 7 April 2010

Figure
C unless otherwise specified; ADC frequency 4.5 MHz.
20 kΩ
V
SS(CORE)
17.
VREFN
VREFN
Figure
5 pF
17.
ARM9 microcontroller with CAN, LIN, and USB
[1][2][3]
[1][4]
[1][5]
[1][6]
[1][7]
[8]
ADC IN[y]
Min
0
V
V
4.4
13.7
-
-
-
-
-
-
-
2
VREFN
VREFN
R vsi
+ 2 -
Typ
-
-
-
-
-
-
-
-
-
-
-
-
002aae280
V EXT
Max
V
V
V
-
23.6
1
1
2
2
0.5
4
40
10
VREFP
DDA(ADC3V3)
VREFP
Figure
LPC2939
© NXP B.V. 2010. All rights reserved.
 2
17.
Unit
V
V
V
k
k
pF
LSB
LSB
LSB
%
LSB
k
bit
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