LPC2290 Datasheet, PDF (29/41 Pages) NXP Semiconductors – 16/32-bit ARM microcontrollers with CAN, 10-bit ADC and external memory interface

NXP Semiconductors
LPC2290
16/32-bit ARM microcontroller with external memory interface
Table 7. ADC static characteristics
V_DDA = 2.5 V to 3.6 V; T_amb = −40 °C to +125 °C unless otherwise specified. ADC frequency 4.5 MHz.
Symbol
Parameter
Conditions
Min
Typ
Max
V_IA
analog input voltage
C_ia
analog input
capacitance
0
-
-
-
V_DDA
1
E_D
differential linearity
error
-
-
±1
[1][2][3]
E_L(adj)
E_O
E_G
E_T
integral non-linearity
offset error
gain error
absolute error
[1][4] _-
-
±2
[1][5] _-
-
±3
[1][6] _-
-
±0.5
[1][7] _-
-
±4
Unit
V
pF
LSB
LSB
LSB
%
LSB
[1] Conditions: V_SSA = 0 V, V_DDA = 3.3 V.
[2] The ADC is monotonic, there are no missing codes.
[3] The differential linearity error (E_D) is the difference between the actual step width and the ideal step width. See Figure 4.
[4] 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 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 4.
[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 4.
[7] The absolute voltage 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 4.
LPC2290_3
Product data sheet
Rev. 03 — 16 November 2006
© NXP B.V. 2006. All rights reserved.
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