Datasheet

Table Of Contents
Electrical characteristics STM32WLE5J8/JB/JC
112/135 DS13105 Rev 4
SINAD
Signal-to-noise
and distortion
ratio
V
DDA
= V
REF+
= 3 V, f
ADC
= 35 MHz,
f
s
2.5 Msps, T
A
= 25 °C
62.5 63 -
dB
2 V < V
DDA
= V
REF+
< 3.6 V, f
ADC
= 35 MHz,
f
s
2.5 Msps, T
A
= entire range
59.5 63 -
1.65 V < V
DDA
= V
REF+
< 3.6 V, T
A
= entire range,
Range 1: f
ADC
= 35 MHz, f
s
2.2 Msps
Range 2: f
ADC
= 16 MHz, f
s
1.1 Msps
59 63 -
SNR
Signal-to-noise
ratio
V
DDA
= V
REF+
= 3 V, f
ADC
= 35 MHz,
f
s
2.5 Msps, T
A
= 25 °C
63 64 -
dB
2 V < V
DDA
= V
REF+
< 3.6 V, f
ADC
= 35 MHz,
f
s
2.5 Msps, T
A
= entire range
60 64 -
1.65 V < V
DDA
= V
REF+
< 3.6 V, T
A
= entire range,
Range 1: f
ADC
= 35 MHz, f
s
2.2 Msps
Range 2: f
ADC
= 16 MHz, f
s
1.1 Msps
60 64 -
THD
Total harmonic
distortion
V
DDA
= V
REF+
= 3 V, f
ADC
= 35 MHz,
f
s
2.5 Msps, T
A
= 25 °C
--74-73
dB
2 V < V
DDA
= V
REF+
< 3.6 V, f
ADC
= 35 MHz,
f
s
2.5 Msps, T
A
= entire range
--74-70
1.65 V < V
DDA
= V
REF+
< 3.6 V, T
A
= entire range,
Range 1: f
ADC
= 35 MHz, f
s
2.2 Msps
Range 2: f
ADC
= 16 MHz, f
s
1.1 Msps
--74-70
1. Based on characterization results, not tested in production.
2. ADC DC accuracy values are measured after internal calibration.
3. Injecting negative current on any analog input pin significantly reduces the accuracy of A-to-D conversion of signal on
another analog input. It is recommended to add a Schottky diode (pin to ground) to analog pins susceptible to receive
negative current.
4. I/O analog switch voltage booster enabled (BOOSTEN = 1 in the SYSCFG_CFGR1) when V
DDA
< 2.4 V and disabled
when V
DDA
2.4 V.
Table 74. ADC accuracy
(1)(2)(3)
(continued)
Symbol Parameter Conditions
(4)
Min Typ Max Unit