Datasheet

ManualsBrandsST ManualsEmbedded Processors & ControllersMicrocontroller 32bit 128KB LQFP

101

102

103

104

105

106

107

108

109

110

Electrical characteristics STM32F303xB STM32F303xC

110/149 DS9118 Rev 14

SNR

(4)

Signal-to-

noise ratio

ADC clock freq. ≤ 72 MHz

Sampling freq ≤ 5 Msps

DDA

= V

REF+

= 3.3 V

25°C

100-pin package

Single ended

Fast channel 5.1 Ms 66 67 -

Slow channel 4.8 Ms 66 67 -

Differential

Fast channel 5.1 Ms 69 70 -

Slow channel 4.8 Ms 69 70 -

THD

(4)

To t al

harmonic

distortion

Single ended

Fast channel 5.1 Ms - -76 -76

Slow channel 4.8 Ms - -76 -76

Differential

Fast channel 5.1 Ms - -80 -80

Slow channel 4.8 Ms - -80 -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 I

INJ(PIN)

and ΣI

INJ(PIN)

in Section 6.3.14 does not affect the ADC

accuracy.

3. Guaranteed by characterization results.

4. Value measured with a -0.5 dB full scale 50 kHz sine wave input signal.

Table 70. ADC accuracy - limited test conditions, 100-pin packages

(1)(2)

(continued)

Symbol Parameter Conditions

Min

(3)

Typ

Max

(3)

Unit

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