Datasheet
Electrical characteristics STM32F303xB STM32F303xC
112/149 DS9118 Rev 14
SINAD
(5)
Signal-to-
noise and
distortion
ratio
ADC clock freq. ≤ 72 MHz,
Sampling freq. ≤ 5 Msps,
2 V ≤ V
DDA
, V
REF+
≤ 3.6 V
100-pin package
Single
Ended
Fast channel 5.1 Ms 64 -
dB
Slow channel 4.8 Ms 63 -
Differential
Fast channel 5.1 Ms 67 -
Slow channel 4.8 Ms 67 -
SNR
(5)
Signal-to-
noise ratio
Single
Ended
Fast channel 5.1 Ms 64 -
Slow channel 4.8 Ms 64 -
Differential
Fast channel 5.1 Ms 67 -
Slow channel 4.8 Ms 67 -
THD
(5)
Tot a l
harmonic
distortion
Single
Ended
Fast channel 5.1 Ms - -74
Slow channel 4.8 Ms - -74
Differential
Fast channel 5.1 Ms - -78
Slow channel 4.8 Ms - -76
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. Better performance may be achieved in restricted V
DDA
, frequency and temperature ranges.
4. Guaranteed by characterization results.
5. Value measured with a -0.5 dB full scale 50 kHz sine wave input signal.
Table 71. ADC accuracy, 100-pin packages
(1)(2)(3)
(continued)
Symbol Parameter Conditions Min
(4)
Max
(4)
Unit
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