STM32F301R8U7TR(2014) 查看數據表（PDF） - STMicroelectronics

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STM32F301R8U7TR
(Rev.:2014)

ARM® Cortex®-M4 32-bit MCU+FPU, up to 64 KB Flash, 16 KB SRAM, ADC, DAC, COMP, Op-Amp, 2.0 – 3.6 V

STMicroelectronics 

Electrical characteristics

STM32F301x6 STM32F301x8

Table 65. ADC accuracy - limited test conditions(1)(2) (continued)

Symbol Parameter

Conditions

Min

(3)

Typ

Max

(3)

Unit

Fast channel 5.1 Ms 66 67 -

Single ended

SNR(4)

Signal-to-

noise ratio

ADC clock freq.   72 MHz

Differential

Slow channel 4.8 Ms

Fast channel 5.1 Ms

66

69

67

70

-

-

Sampling freq   5 Msps

VDDA = 3.3 V

Slow channel 4.8 Ms 69 70 -

dB

Fast channel 5.1 Ms - -80 -80

Total

THD(4) harmonic

25°C

Single ended

Slow channel 4.8 Ms - -78 -77

distortion

Fast channel 5.1 Ms - -83 -82

Differential

Slow channel 4.8 Ms - -81 -80

1. ADC DC accuracy values are measured after internal calibration.

2. 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.

Any positive injection current within the limits specified for IINJ(PIN) and IINJ(PIN) in Section 6.3.14 does not affect the ADC

accuracy.

3. Data based on characterization results, not tested in production.

4. Value measured with a –0.5dB Full Scale 50kHz sine wave input signal.

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