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32G431 Datasheet(PDF) 129 Page - STMicroelectronics

Part # 32G431
Description  Arm® Cortex®-M4 32-bit MCUFPU, 170 MHz /213 DMIPS,up to 128 KB Flash, 32 KB SRAM, rich analog, math accelerator
PDF  198 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

32G431 Datasheet(HTML) 129 Page - STMicroelectronics

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DS12589 Rev 6
129/198
STM32G431x6 STM32G431x8 STM32G431xB
Electrical characteristics
160
Table 65. ADC accuracy (Multiple ADCs operation) - limited test conditions 1(1)(2)(3)
Symbol
Parameter
Conditions(4)
Min
Typ
Max
Unit
ET
Total unadjusted
error
Multiple ADC operation
ADC clock frequency:
single ended ≤ 52 MHz,
differential ≤ 56 MHz,
VDDA = VREF= 3.3 V,
25°C,
Continuous mode,
sampling time:
Fast channels: 2.5 cycles
Slow channels: 6.5 cycles
LQFP100 package
Single ended
-
4.5
-
LSB
Differential
-
4.1
-
EO
Offset error
Single ended
-
1.3
-
Differential
-
0.4
-
EG
Gain error
Single ended
-
3.9
-
Differential
-
3.4
-
ED
Differential
linearity error
Single ended
-
1.5
-
Differential
-
1.2
-
EL
Integral linearity
error
Single ended
-
1.7
-
Differential
-
2.1
-
ENOB
Effective
number of bits
Single ended
-
10.7
-
bits
Differential
-
10.9
-
SINAD
Signal-to-noise
and distortion
ratio
Single ended
-
66.3
-
dB
Differential
-
67.2
-
SNR
Signal-to-noise
ratio
Single ended
-
67.3
-
Differential
-
68.6
-
THD
Total harmonic
distortion
Single ended
-
-73.5
-
dB
Differential
-
-73
-
1. Data based on characterization result, not tested in production.
2. ADC DC accuracy values are measured after internal calibration.
3. ADC accuracy vs. negative Injection Current: Injecting negative current on any analog input pins should be avoided
as this significantly reduces the accuracy of the conversion being performed on another analog input. It is
recommended to add a Schottky diode (pin to ground) to analog pins which may potentially inject negative current.
4. The I/O analog switch voltage booster is enabled when VDDA < 2.4 V (BOOSTEN = 1 in the SYSCFG_CFGR1 when
VDDA < 2.4 V). It is disabled when VDDA ≥ 2.4 V. No oversampling.



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