STM32F031K6U7TR(2015) View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
STM32F031K6U7TR
(Rev.:2015)
(Rev.:2015)
STMicroelectronics
STM32F031K6U7TR Datasheet PDF : 106 Pages
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Electrical characteristics
STM32F031x4 STM32F031x6
Ts (cycles)
28.5
Table 51. RAIN max for fADC = 14 MHz (continued)
tS (µs)
RAIN max (kΩ)(1)
2.04
25.2
41.5
2.96
37.2
55.5
3.96
50
71.5
5.11
NA
239.5
17.1
NA
1. Guaranteed by design, not tested in production.
Symbol
Parameter
Table 52. ADC accuracy(1)(2)(3)
Test conditions
Typ
Max(4)
Unit
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
fPCLK = 48 MHz,
fADC = 14 MHz, RAIN < 10 kΩ
VDDA = 3 V to 3.6 V
TA = 25 °C
fPCLK = 48 MHz,
fADC = 14 MHz, RAIN < 10 kΩ
VDDA = 2.7 V to 3.6 V
TA = −40 to 105 °C
fPCLK = 48 MHz,
fADC = 14 MHz, RAIN < 10 kΩ
VDDA = 2.4 V to 3.6 V
TA = 25 °C
±1.3
±2
±1
±1.5
±0.5
±1.5
LSB
±0.7
±1
±0.8
±1.5
±3.3
±4
±1.9
±2.8
±2.8
±3
LSB
±0.7
±1.3
±1.2
±1.7
±3.3
±4
±1.9
±2.8
±2.8
±3
LSB
±0.7
±1.3
±1.2
±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
accuracy.
injection
current
within
the
limits
specified
for
IINJ(PIN)
and
ΣIINJ(PIN)
in
Section
6.3.14
does
not
affect
the
ADC
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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DocID025743 Rev 4
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