STM32F373VC(2013) データシートの表示（PDF） - STMicroelectronics
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STM32F373VC
(Rev.:2013)
(Rev.:2013)
STMicroelectronics
STM32F373VC Datasheet PDF : 131 Pages
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STM32F37xxx
Electrical characteristics
Equation 1: RSRC max formula
RSRC < f--A---D----C----×-----C-----A---D--T-C---S--×-----l-n----(---2---N----+----2---) – RADC
The formula above (Equation 1) is used to determine the maximum external signal source
impedance allowed for an error below 1/4 of LSB. Here N = 12 (from 12-bit resolution).
Ts (cycles)
Table 61. RSRC max for fADC = 14 MHz(1)
tS (µs)
RSRC max (kΩ)
1.5
0.11
0.4
7.5
0.54
5.9
13.5
0.96
11.4
28.5
2.04
25.2
41.5
2.96
37.2
55.5
3.96
50
71.5
5.11
50
239.5
17.1
50
1. Guaranteed by design, not tested in production.
Symbol
Table 62. ADC accuracy(1)(2) (3)
Parameter
Test conditions
Typ
ET Total unadjusted error
EO Offset error
EG Gain error
ED Differential linearity error
EL Integral linearity error
ET Total unadjusted error
EO Offset error
EG Gain error
ED Differential linearity error
EL Integral linearity error
ET Total unadjusted error
EO Offset error
EG Gain error
ED Differential linearity error
EL Integral linearity error
fADC = 14 MHz, RSRC < 10 kΩ,
VDDA = 3 V to 3.6 V
TA = 25 °C
fADC = 14 MHz, RSRC < 10 kΩ,
VDDA = 2.7 V to 3.6 V
TA = -40 to 105 °C
fADC = 14 MHz, RSRC < 10 kΩ,
VDDA = 2.4 V to 3.6 V
TA = 25 °C
±1.3
±1
±0.5
±0.7
±0.8
±3.3
±1.9
±2.8
±0.7
±1.2
±3.3
±1.9
±2.8
±0.7
±1.2
1. ADC DC accuracy values are measured after internal calibration.
Max(4) Unit
±3
±2
±1.5 LSB
±1
±1.5
±4
±2.8
±3
LSB
±1.3
±1.7
±4
±2.8
±3
LSB
±1.3
±1.7
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