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32G474 bảng dữ liệu(PDF) 150 Page - STMicroelectronics

tên linh kiện 32G474
Giải thích chi tiết về linh kiện  Arm® Cortex®-M4 32-bit MCUFPU, 170 MHz / 213 DMIPS, 128 KB SRAM, rich analog, math acc, 184 ps 12 chan Hi-res timer
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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32G474 bảng dữ liệu(HTML) 150 Page - STMicroelectronics

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Electrical characteristics
STM32G474xB STM32G474xC STM32G474xE
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DS12288 Rev 4
THD
Total
harmonic
distortion
Single ADC operation
ADC clock frequency ≤
60 MHz,
1.62 V ≤ VDDA = VREF+
≤ 3.6 V,
Continuous mode,
sampling rate:
Fast channels@4Msps
Slow channels@2Msps
Single
ended
Fast channel (max speed)
-
-73
-67
dB
Slow channel (max speed)
-
-73
-67
Differential
Fast channel (max speed)
-
-73
-71
Slow channel (max speed)
-
-73
-71
1. Guaranteed by design.
2. ADC DC accuracy values are measured after internal calibration.
3. 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.
4. The I/O analog switch voltage booster is enabled when VDDA < 2.4 V (BOOSTEN = 1 in the SYSCFG_CFGR1 when
VDDA < 2.4 V). It is disabled when VDDA ≥ 2.4 V. No oversampling.
Table 70. ADC accuracy - limited test conditions 3(1)(2)(3) (continued)
Sym-
bol
Parameter
Conditions(4)
Min
Typ
Max Unit



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