Datasheet

Table Of Contents
DS13105 Rev 4 109/135
STM32WLE5J8/JB/JC Electrical characteristics
127
t
LATR
Trigger conversion
latency;
Regular and injected
channels without
conversion abort
CKMODE = 00 2 - 3
1/f
ADC
CKMODE = 01 - - 2.75
CKMODE = 10 - - 2.63
CKMODE = 11 - - 3
t
s
Sampling time
f
ADC
= 35 MHz 0.043 - 4.59 µs
-1.5-160.51/f
ADC
t
ADCVREG_STUP
ADC voltage regulator
start-up time
---20
µs
t
CONV
Total conversion time
(including sampling
time)
f
ADC
= 35 MHz
Resolution = 12 bits
0.40 - 4.95 µs
Resolution = 12 bits
t
s
+ 12.5 cycles for successive
approximation
= 14 to 173
1/f
ADC
I
DDA(ADC)
ADC consumption
from V
DDA
f
s
= 2.5 Msps - 272 -
µAf
s
= 1 Msps - 118 -
f
s
= 10 ksps - 15 -
I
DDV(ADC)
ADC consumption
from V
REF+
single ended mode
f
s
= 2.5 Msps - 65 -
µAf
s
= 1 Msps - 26 -
f
s
= 10 ksps - 0.26 -
1. Guaranteed by design
2. I/O analog switch voltage booster must be enabled (BOOSTEN = 1 in the SYSCFG_CFGR1) when V
DDA
< 2.4 V and
disabled when V
DDA
2.4 V.
Table 72. ADC characteristics
(1)
(continued)
Symbol Parameter Conditions
(2)
Min Typ Max Unit
Table 73. Maximum ADC R
AIN
values
Resolution Sampling cycle at 35 MHz (ns) Sampling time at 35 MHz (ns) Max. R
AIN
(1)(2)
()
12 bits
1.5
(3)
43 50
3.5 100 680
7.5 214 2200
12.5 357 4700
19.5 557 8200
39.5 1129 15000
79.5 2271 33000
160.5 4586 50000