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LPC2131 데이터시트(PDF) 32 Page - NXP Semiconductors

부품명 LPC2131
상세설명  Single-chip 16/32-bit microcontrollers; 32/64/128/256/512 kB ISP/IAP flash with 10-bit ADC and DAC
PDF  45 Pages
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제조업체  PHILIPS [NXP Semiconductors]
홈페이지  http://www.nxp.com
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LPC2131 데이터시트(HTML) 32 Page - NXP Semiconductors

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© NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 5.1 — 29 July 2011
32 of 45
NXP Semiconductors
LPC2131/32/34/36/38
Single-chip 16/32-bit microcontrollers
10. ADC electrical characteristics
[1]
Conditions: VSSA =0V, VDDA =3.3 V.
[2]
The ADC is monotonic, there are no missing codes.
[3]
The differential linearity error (ED) is the difference between the actual step width and the ideal step width. See Figure 11.
[4]
The integral non-linearity (EL(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 11.
[5]
The offset error (EO) is the absolute difference between the straight line which fits the actual curve and the straight line which fits the
ideal curve. See Figure 11.
[6]
The gain error (EG) 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 11.
[7]
The absolute error (ET) 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 11.
[8]
See Figure 11.
Table 8.
ADC static characteristics
VDDA = 2.5 V to 3.6 V; Tamb = 40 C to +85 C unless otherwise specified; ADC frequency 4.5 MHz.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VIA
analog input voltage
0
-
VDDA
V
Cia
analog input capacitance
-
-
1
pF
ED
differential linearity error
[1][2][3] --
1LSB
EL(adj)
integral non-linearity
[1][4] --
2LSB
EO
offset error
[1][5] --
3LSB
EG
gain error
[1][6] --
0.5
%
ET
absolute error
[1][7] --
4LSB
Rvsi
voltage source interface
resistance
[8] --40
k



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