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STM32F334X4 Datasheet(PDF) 93 Page - STMicroelectronics

Part # STM32F334X4
Description  ARMCortex-M4 32b MCUFPU,up to 64KB Flash,16KB SRAM, 2 ADCs,3 DACs,3 comp.,op-amp, 217ps 10-ch (HRTIM1)
PDF  115 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32F334X4 Datasheet(HTML) 93 Page - STMicroelectronics

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STM32F334x4 STM32F334x6 STM32F334x8
Electrical characteristics
100
Figure 28. ADC accuracy characteristics
Table 68. ADC accuracy(1)(2) at 1MSPS
Symbol
Parameter
Test conditions
Typ
Max(3)
Unit
ET
Total unadjusted error
ADC Freq ≤ 72 MHz
Sampling Freq ≤ 1MSPS
2.4 V ≤ VDDA = VREF+ ≤ 3.6 V
Single-ended mode
Fast channel
±2.5
±5
LSB
Slow channel
±3.5
±5
EO
Offset error
Fast channel
±1
±2.5
Slow channel
±1.5
±2.5
EG
Gain error
Fast channel
±2
±3
Slow channel
±3
±4
ED
Differential linearity error
Fast channel
±0.7
± 2
Slow channel
±0.7
±2
EL
Integral linearity error
Fast channel
±1
±3
Slow channel
±1.2
±3
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 IINJ(PIN) and ∑IINJ(PIN) in Section 6.3.14: I/O port characteristics does not affect the ADC
accuracy.
3. Data based on characterization results, not tested in production.



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