STM32WB55CG 查看數據表（PDF） - STMicroelectronics

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STM32WB55CG

Multiprotocol wireless 32-bit MCU Arm®-based Cortex®-M4 with FPU, Bluetooth® 5 and 802.15.4 radio solution

STMicroelectronics 

STM32WB55xx STM32WB35xx

Electrical characteristics

Symbol

Table 81. ADC accuracy - Limited test conditions 3(1)(2)(3) (continued)

Parameter

Conditions(4)

Min Typ Max Unit

THD

Total

harmonic

distortion

Single

ended

Fast channel (max speed)

Slow channel (max speed)

Differential

Fast channel (max speed)

Slow channel (max speed)

- -69 -67

- -71 -67

dB

- -72 -71

- -72 -71

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

VDDA <

analog

2.4 V).

switch voltage booster is

It is disable when VDDA ≥

e2n.4abVl.eNwohoevneVrsDaDmAp<lin2g.4.

V

(BOOSTEN

=

1

in

the

SYSCFG_CFGR1

when

DS11929 Rev 10

149/193

169

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