STM32F051R4U7(2012) View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
STM32F051R4U7
(Rev.:2012)
(Rev.:2012)
STMicroelectronics
STM32F051R4U7 Datasheet PDF : 104 Pages
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Electrical characteristics
STM32F051x
EquRaAtINio<nf--1A---:D----CR----×A----I-CN-----Am---D--T-aC---xS--×---f--lo-n---r-(-m--2---Nu----l+-a---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).
Table 55. RAIN max for fADC = 14 MHz(1)
Ts (cycles)
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 (kΩ)
0.4
5.9
11.4
25.2
37.2
50
NA
NA
Table 56. ADC accuracy(1)(2) (3)
Symbol
Parameter
Test conditions
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
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 = 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. ADC DC accuracy values are measured after internal calibration.
Typ
±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
Max(4) Unit
±2
±1.5
±1.5 LSB
±1
±1.5
±4
±2.8
±3
LSB
±1.3
±1.7
±4
±2.8
±3
LSB
±1.3
±1.7
78/105
Doc ID 022265 Rev 3
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