STM32WB55 datasheet(145/193 Pages) STMICROELECTRONICS

Part #	STM32WB55

Description	Multiprotocol wireless 32-bit MCU Arm®-based Cortex®-M4 with FPU, Bluetooth® 5.2 and 802.15.4 radio solution

PDF	193 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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145 / 193 page

DS11929 Rev 11

145/193

STM32WB55xx STM32WB35xx

Electrical characteristics

169

THD

Total

harmonic

distortion

Single

ended

Fast channel (max speed)

-74

-73

Slow channel (max speed)

-74

-73

Differential

Fast channel (max speed)

-79

-76

Slow channel (max speed)

-79

-76

1. Guaranteed by design.

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 enable when VDDA < 2.4 V (BOOSTEN = 1 in the SYSCFG_CFGR1 when

VDDA < 2.4 V). It is disable when VDDA ≥ 2.4 V. No oversampling.

Table 79. ADC accuracy - Limited test conditions 1(1)(2)(3) (continued)

Symbol

Parameter

Conditions(4)

Min

Typ

Max Unit

STM32WB55 Datasheet(PDF) 145 Page - STMicroelectronics