STM32F358XC datasheet(107/134 Pages) STMICROELECTRONICS

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STM32F358xC

Electrical characteristics

118

SNR(4)

Signal-to-

noise ratio

ADC clock freq.

≤ 72 MHz

Sampling freq

≤ 5 Msps

VDDA = VREF+ = 3.3 V

25°C

100-pin package

Single ended

Fast channel 5.1 Ms

Slow channel 4.8 Ms

Differential

Fast channel 5.1 Ms

Slow channel 4.8 Ms

THD(4)

Total

harmonic

distortion

Single ended

Fast channel 5.1 Ms

-80

Slow channel 4.8 Ms

-78

-77

Differential

Fast channel 5.1 Ms

-83

-82

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 ΣIINJ(PIN) in Section 6.3.13 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.

Table 68. ADC accuracy - limited test conditions 64-pin packages(1)(2) (continued)

Symbol Parameter

Conditions

Min

(3)

Typ

Max

(3)

Unit

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