STM32F030C8P6TR(2013) View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
STM32F030C8P6TR
(Rev.:2013)
(Rev.:2013)
STMicroelectronics
STM32F030C8P6TR Datasheet PDF : 88 Pages
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STM32F030x4 STM32F030x6 STM32F030x8
Electrical characteristics
Equation 1: RAIN max formula
RAIN
----------------------------T----S-----------------------------
fADC CADC ln 2N + 2
–
RADC
The formula above (Equation 1) is used to determine the maximum external impedance
allowed for an error below 1/4 of LSB. Here N = 12 (from 12-bit resolution).
Ts (cycles)
Table 49. RAIN max for fADC = 14 MHz
tS (µs)
1.5
0.11
7.5
0.54
13.5
0.96
28.5
2.04
41.5
2.96
55.5
3.96
71.5
5.11
239.5
17.1
1. Guaranteed by design, not tested in production.
RAIN max (k)(1)
0.4
5.9
11.4
25.2
37.2
50
NA
NA
Symbol
Table 50. ADC accuracy(1)(2)(3)
Parameter
Test conditions
Typ
Max(4) Unit
ET Total unadjusted error
EO Offset error
EG Gain error
ED Differential linearity error
EL Integral linearity error
fPCLK = 48 MHz,
fADC = 14 MHz, RAIN < 10 k,
VDDA = 2.7 V to 3.6 V
TA = 40 to 85 °C
±3.3
±1.9
±2.8
±0.7
±1.2
±4
±2.8
±3
LSB
±1.3
±1.7
1. ADC DC accuracy values are measured after internal calibration.
2. ADC Accuracy vs. Negative Injection Current: Injecting negative current on any of the standard
(non-robust) 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 standard 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. Better performance may be achieved in restricted VDDA, frequency and temperature ranges.
4. Data based on characterization results, not tested in production.
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