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STM32F303VB bảng dữ liệu(PDF) 122 Page - STMicroelectronics

tên linh kiện STM32F303VB
Giải thích chi tiết về linh kiện  ARM®-based Cortex®-M4 32b MCUFPU, up to 256KB Flash 48KB SRAM, 4 ADCs, 2 DAC ch., 7 comp, 4 PGA, timers, 2.0-3.6 V
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
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STM32F303VB bảng dữ liệu(HTML) 122 Page - STMicroelectronics

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Electrical characteristics
STM32F303xB STM32F303xC
122/148
DocID023353 Rev 13
PGA gain
Non inverting gain value
-
-2
-
-
-4
-
-
-8
-
-
-16
-
-
Rnetwork
R2/R1 internal resistance values in
PGA mode (3)
Gain=2
-
5.4/5.4
-
k
Ω
Gain=4
-
16.2/5.4
-
Gain=8
-
37.8/5.4
-
Gain=16
-
40.5/2.7
-
PGA gain error
PGA gain error
-
-1%
-
1%
Ibias
OPAMP input bias current
-
-
-
±0.2(4)
µA
PGA BW
PGA bandwidth for different non
inverting gain
PGA Gain = 2,
Cload = 50pF,
Rload = 4 K
Ω
-4
-
MHz
PGA Gain = 4,
Cload = 50pF,
Rload = 4 K
Ω
-2
-
PGA Gain = 8,
Cload = 50pF,
Rload = 4 K
Ω
-1
-
PGA Gain = 16,
Cload = 50pF,
Rload = 4 K
Ω
-0.5
-
en
Voltage noise density
@ 1KHz, Output
loaded with
4 K
Ω
-109
-
@ 10KHz,
Output loaded
with 4 K
Ω
-43
-
1. Guaranteed by design.
2. The saturation voltage can be also limited by the Iload (drive current).
3. R2 is the internal resistance between OPAMP output and OPAMP inverting input.
R1 is the internal resistance between OPAMP inverting input and ground.
The PGA gain =1+R2/R1
4. Mostly TTa I/O leakage, when used in analog mode.
Table 77. Operational amplifier characteristics(1) (continued)
Symbol
Parameter
Condition
Min
Typ
Max
Unit
nV
Hz
-----------



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