STM32L412R8I3TR datasheet(144/192 Pages) STMICROELECTRONICS

Part #	STM32L412R8I3TR

Description	Ultra-low-power Arm® Cortex®-M4 32-bit MCUFPU, 100DMIPS, up to 128KB Flash, 40KB SRAM, analog, ext. SMPS

PDF	192 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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144 / 192 page

Electrical characteristics

STM32L412xx

144/192

DS12469 Rev 4

THD

Total

harmonic

distortion

ADC clock frequency ≤

80 MHz,

Sampling rate ≤ 5.33 Msps,

2 V ≤ VDDA

Single

ended

Fast channel (max speed)

-74

-65

Slow channel (max speed)

-74

-67

Differential

Fast channel (max speed)

-79

-70

Slow channel (max speed)

-79

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

Sym-

bol

Parameter

Conditions(4)

Min Typ Max Unit

STM32L412R8I3TR Datasheet(PDF) 144 Page - STMicroelectronics