Datasheet

LPC55S6x All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2019. All rights reserved.
Product data sheet Rev. 1.0 — 26 February 2019 104 of 123
NXP Semiconductors
LPC55S6x
32-bit ARM Cortex-M33 microcontroller
• R
1
and R
sw
are the switch-on resistance on the ADC input channel.
• If fast channels (ADC inputs 0 to 5) are selected, the ADC input signal goes through
R
sw
to the sampling capacitor (C
ia
).
• If slow channels (ADC inputs 6 to 11) are selected, the ADC input signal goes through
R
1
+ R
sw
to the sampling capacitor (C
ia
).
• Typical values, R
1
= 487 , R
sw
= 278 
• See Table 21 for C
io
.
• See Table 41 for C
ia
.
12.2.2 Temperature sensor
[1] Absolute temperature accuracy.
[2] Typical values are derived from nominal simulation (V
DDA
= <tbd> V; T
amb
= <tbd> C; nominal process
models). Maximum values are derived from worst case simulation (V
DDA
= <tbd> V; T
amb
= <tbd> C; slow
process models).
Fig 29. ADC input impedance <tbd>
DAC
ADC
R
sw
R
1
C
ia
ADCx
ADCy
C
io
C
io
aaa-017600
Table 42. Temperature sensor static and dynamic characteristics
V
DD =
V
DDA
= 1.8 V to 3.6 V
Symbol Parameter Conditions Min Typ Max Unit
DT
sen
sensor
temperature
accuracy
T
amb
= 40 C to +105 C
[1]
- - <tbd> C
E
L
linearity error T
amb
= 40 C to +105 C - - <tbd> C
t
s(pu)
power-up
settling time
[2]
- <tbd> <tbd> s
Table 43. Temperature sensor Linear-Least-Square (LLS) fit parameters
V
DD =
V
DDA
= 1.8 V to 3.6 V
Fit parameter Range Min Typ Max Unit
LLS slope T
amb
= 40 C to +105 C
[1]
- <tbd> - mV/C
LLS intercept at 0 CT
amb
= 40 C to +105 C
[1]
- <tbd> - mV
Value at 30 C
[2]
<tbd> - <tbd> mV