NXP Semiconductors
LPC178x/7x
32-bit ARM Cortex-M3 microcontroller
LPC178x/7x
C3
Rcmp
Rsw
ADC
COMPARATOR
1.6 pF
90 Ω - 300 Ω
500 Ω - 2 kΩ
AD0[n]
BLOCK
C1
110 fF
C2
80 fF
Cia
Rvsi
VSS
VEXT
002aag613
The values of resistor components Rcmp and Rsw vary with temperature and input voltage and are
process-dependent.
Fig 29. ADC interface to pins ADC0_IN[n]
Table 32. ADC interface components
Component Range
Description
Rcmp
90 to 300
Switch-on resistance for the comparator input switch. Varies
with temperature, input voltage, and process.
Rsw
500 to 2 k
Switch-on resistance for channel selection switch. Varies with
temperature, input voltage, and process.
C1
110 fF
Parasitic capacitance from the ADC block level.
C2
80 fF
Parasitic capacitance from the ADC block level.
C3
1.6 pF
Sampling capacitor.
13. DAC electrical characteristics
Table 33. 10-bit DAC electrical characteristics
VDDA = 2.7 V to 3.6 V; Tamb = 40 C to +85 C unless otherwise specified
Symbol
Parameter
Min
Typ
Max
Unit
ED
differential linearity error
-
1
-
LSB
EL(adj)
integral non-linearity
-
1.5
-
LSB
EO
offset error
-
0.6
-
%
EG
gain error
-
0.6
-
%
CL
load capacitance
-
-
200
pF
RL
load resistance
1
-
-
k
LPC178X_7X
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 5.5 — 26 April 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
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