Datasheet

LPC84x All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2018. All rights reserved.
Product data sheet Rev. 1.7 — 27 February 2018 73 of 97
NXP Semiconductors
LPC84x
32-bit Arm Cortex-M0+ microcontroller
13.3 Comparator and internal voltage reference
Table 28. Internal voltage reference static and dynamic characteristics
T
amb
=  40  C to +105  C; V
DD
= 3.3 V; hysteresis disabled in the comparator CTRL register.
Symbol Parameter Conditions Min Typ Max Unit
V
O
output voltage T
amb
= 25 C to 105C 860 - 940 mV
T
amb
= 25 C 904 mV
V
DD
= 3.3 V; characterized through bench measurements on typical samples.
Fig 35. Typical internal voltage reference output voltage
aaa-014424
-40 -10 20 50 80 110
0.890
0.895
0.900
0.905
0.910
temperature (°C)
V
ref
ref
V
O
(mV)
(mV)
(V)
Table 29. Comparator characteristics
T
amb
=  40  C to +105  C unless noted otherwise; V
DD
= 1.8 V to 3.6 V.
Symbol Parameter Conditions Min Typ Max Unit
Static characteristics
V
ref(cmp)
comparator reference
voltage
pin ACMPV
REF
1.5 - 3.6 V
I
DD
supply current VP > VM; T
amb
= 25 °C; V
DD
= 3.3 V
[2]
-90 - A
VM > VP; T
amb
= 25 °C; V
DD
= 3.3 V
[2]
-60 - A
V
IC
common-mode input voltage 0 - V
DD
V
DV
O
output voltage variation 0 - V
DD
V
V
offset
offset voltage V
IC
= 0.1 V; V
DD
= 3.0 V
[2]
-3 - mV
V
IC
= 1.5 V; V
DD
= 3.0 V
[2]
-3 - mV
V
IC
= 2.9 V; V
DD
= 3.0V
[2]
-6 - mV
Dynamic characteristics
t
startup
start-up time nominal process; V
DD
= 3.3 V; T
amb
=
25
°C
-13 - s