32G431 datasheet(126/198 Pages) 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

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126 / 198 page

Electrical characteristics

STM32G431x6 STM32G431x8 STM32G431xB

126/198

DS12589 Rev 6

THD

Total

harmonic

distortion

Single ADC operation

ADC clock frequency

≤ 60 MHz, 2 V ≤ VDDA

Continuous mode, sampling

rate:

Fast channels@4Msps

Slow channels@2Msps

Single

ended

Fast channel (max speed)

-73

-65

Slow channel (max speed)

-73

-67

Differential

Fast channel (max speed)

-73

-70

Slow channel (max speed)

-73

-71

1. Evaluated by characterization – 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.

Table 63. ADC accuracy - limited test conditions 2(1)(2)(3) (continued)

Sym-

bol

Parameter

Conditions(4)

Min

Typ

Max Unit

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