Datasheet

DS10198 Rev 8 197/270
STM32L476xx Electrical characteristics
238
6.3.21 Comparator characteristics
Table 85. COMP characteristics
(1)
Symbol Parameter Conditions Min Typ Max Unit
V
DDA
Analog supply voltage - 1.62 - 3.6
VV
IN
Comparator input voltage
range
-0-V
DDA
V
BG
(2)
Scaler input voltage - V
REFINT
V
SC
Scaler offset voltage - - ±5 ±10 mV
I
DDA
(SCALER)
Scaler static consumption
from V
DDA
BRG_EN=0 (bridge disable) - 200 300 nA
BRG_EN=1 (bridge enable) - 0.8 1 µA
t
START_SCALER
Scaler startup time - - 100 200 µs
t
START
Comparator startup time to
reach propagation delay
specification
High-speed
mode
V
DDA
 2.7 V - - 5
µs
V
DDA
< 2.7 V - - 7
Medium mode
V
DDA
 2.7 V - - 15
V
DDA
< 2.7 V - - 25
Ultra-low-power mode - - 80
t
D
(3)
Propagation delay for
200 mV step
with 100 mV overdrive
High-speed
mode
V
DDA
 2.7 V - 55 80
ns
V
DDA
< 2.7 V - 65 100
Medium mode
V
DDA
 2.7 V - 0.55 0.9
µsV
DDA
< 2.7 V - 0.65 1
Ultra-low-power mode - 5 12
V
offset
Comparator offset error
Full common
mode range
--±5±20mV
V
hys
Comparator hysteresis
No hysteresis - 0 -
mV
Low hysteresis 4 8 16
Medium hysteresis 8 15 30
High hysteresis 15 27 52
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