Datasheet

Electrical characteristics STM32H743xI
172/231 DS12110 Rev 5
6.3.26 Comparator characteristics
Table 95. COMP characteristics
(1)
Symbol Parameter Conditions Min Typ Max Unit
V
DDA
Analog supply voltage - 1.62 3.3 3.6
VV
IN
Comparator input voltage
range
-0-V
DDA
V
BG
(2)
Scaler input voltage - Refer to V
REFINT
V
SC
Scaler offset voltage - - ±5 ±10 mV
I
DDA(SCALER)
Scaler static consumption
from V
DDA
BRG_EN=0 (bridge disable) - 0.2 0.3
µA
BRG_EN=1 (bridge enable) - 0.8 1
t
START_SCALER
Scaler startup time - - 140 250 µs
t
START
Comparator startup time to
reach propagation delay
specification
High-speed mode - 2 5
µsMedium mode - 5 20
Ultra-low-power mode - 15 80
t
D
Propagation delay for
200 mV step with 100 mV
overdrive
High-speed mode - 50 80 ns
Medium mode - 0.5 1.2
µs
Ultra-low-power mode - 2.5 7
Propagation delay for step
> 200 mV with 100 mV
overdrive only on positive
inputs
High-speed mode - 50 120 ns
Medium mode - 0.5 1.2
µs
Ultra-low-power mode - 2.5 7
V
offset
Comparator offset error Full common mode range - ±5 ±20 mV
V
hys
Comparator hysteresis
No hysteresis - 0 -
mV
Low hysteresis - 10 -
Medium hysteresis - 20 -
High hysteresis - 30 -
I
DDA
(COMP)
Comparator consumption
from V
DDA
Ultra-low-
power mode
Static - 400 600
nA
With 50 kHz
±100 mV overdrive
square signal
- 800 -
Medium mode
Static - 5 7
µA
With 50 kHz
±100 mV overdrive
square signal
-6-
High-speed
mode
Static - 70 100
With 50 kHz
±100 mV overdrive
square signal
-75-
1. Guaranteed by design, unless otherwise specified.
2. Refer to Table 27: Embedded reference voltage.