LPC1769 View Datasheet(PDF) - NXP Semiconductors.
Part Name
Description
MFG CO.
'LPC1769' PDF : 79 Pages View PDF
NXP Semiconductors
LPC1769/68/67/66/65/64/63
32-bit ARM Cortex-M3 microcontroller
LPC17xx
ADC
COMPARATOR
C3
2.2 pF
Ri1
2 kΩ - 5.2 kΩ
Ri2
100 Ω - 600 Ω
AD0[n]
BLOCK
C1
750 fF
C2
65 fF
Cia
Rvsi
VSS
VEXT
002aaf197
The values of resistor components Ri1 and Ri2 vary with temperature and input voltage and are
process-dependent (see Table 20).
Parasitic resistance and capacitance from the pad are not included in this figure.
Fig 27. ADC interface to pins AD0[n]
Table 20. ADC interface components
Component Range
Description
Ri1
2 kΩ to 5.2 kΩ Switch-on resistance for channel selection switch. Varies with
temperature, input voltage, and process.
Ri2
100 Ω to 600 Ω Switch-on resistance for the comparator input switch. Varies
with temperature, input voltage, and process.
C1
750 fF
Parasitic capacitance from the ADC block level.
C2
65 fF
Parasitic capacitance from the ADC block level.
C3
2.2 pF
Sampling capacitor.
13. DAC electrical characteristics
Remark: The DAC is available on parts LPC1769/68/67/66/65/63. See Table 2.
Table 21. DAC electrical characteristics
VDDA = 2.7 V to 3.6 V; Tamb = −40 °C to +85 °C unless otherwise specified
Symbol
Parameter
Conditions
Min Typ
ED
EL(adj)
differential linearity error
integral non-linearity
-
±1
-
±1.5
EO
offset error
-
0.6
EG
gain error
-
0.6
CL
load capacitance
-
200
RL
load resistance
1
-
Max Unit
-
LSB
-
LSB
-
%
-
%
-
pF
-
kΩ
LPC1769_68_67_66_65_64_63
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 7 — 5 April 2011
© NXP B.V. 2011. All rights reserved.
65 of 79
Share Link: 
