LPC5411x
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© NXP Semiconductors N.V. 2018. All rights reserved.
Product data sheet
Rev. 2.1 — 9 May 2018
81 of 105
NXP Semiconductors
LPC5411x
32-bit ARM Cortex-M4/M0+ microcontroller
[8]
The full-scale error voltage or gain error (E
G
) is the difference between the straight-line fitting the actual
transfer curve after removing offset error, and the straight line which fits the ideal transfer curve. See
.
[9]
T
amb
= 25
C; maximum sampling frequency f
s
= 5.0 Msamples/s and analog input capacitance C
ia
= 5 pF.
[10] Input impedance Z
i
is inversely proportional to the sampling frequency and the total input capacity including
C
ia
and C
io
: Z
i
1 / (f
s
C
i
). See
io
. See
.
(1) Example of an actual transfer curve.
(2) The ideal transfer curve.
(3) Differential linearity error (E
D
).
(4) Integral non-linearity (E
L(adj)
).
(5) Center of a step of the actual transfer curve.
Fig 27. 12-bit ADC characteristics
aaa-016908
4095
4094
4093
4092
4091
(2)
(1)
4096
4090
4091
4092
4093
4094
4095
7
1
2
3
4
5
6
7
6
5
4
3
2
1
0
4090
(5)
(4)
(3)
1 LSB
(ideal)
code
out
VREFP - VREFN
4096
offset
error
E
O
gain
error
E
G
offset error
E
O
V
IA
(LSB
ideal
)
1 LSB =