参数资料
型号: STR750FV1H6
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 32-BIT, FLASH, 48 MHz, RISC MICROCONTROLLER, PBGA100
封装: 10 X 10 MM, 1.70 MM HEIGHT, ROHS COMPLIANT, LFBGA-100
文件页数: 71/84页
文件大小: 1656K
代理商: STR750FV1H6
STR750Fxx STR751Fxx STR752Fxx STR755Fxx
Electrical parameters
ADC accuracy vs. negative injection current
Injecting negative current on specific pins listed in Table 46 (generally adjacent to the analog
input pin being converted) should be avoided as this significantly reduces the accuracy of
the conversion being performed. It is recommended to add a Schottky diode (pin to ground)
to pins which may potentially inject negative current.
Figure 42.
Typical application with ADC
Analog power supply and reference pins
The VDDA_ADC and VSSA_ADC pins are the analog power supply of the A/D converter cell.
Separation of the digital and analog power pins allow board designers to improve A/D
performance. Conversion accuracy can be impacted by voltage drops and noise in the event
of heavily loaded or badly decoupled power supply lines (see : General PCB design
Table 46.
List of adjacent pins
Analog input
Related adjacent pins
aNone
AIN1/P0.03
None
AIN2/P0.12
P0.11
AIN3/P0.17
P0.18 and P0.16
AIN4/P0.19
P0.24
AIN5/P0.22
None
AIN6/P0.23
P2.04
AIN7/P0.27
P1.11 and P0.26
AIN8/P0.29
P0.30 and P0.28
AIN9/P1.04
None
AIN10/P1.06
P1.05
AIN11/P1.08
P1.04 and P1.13
AIN12/P1.11
P2.17 and P0.27
AIN13/P1.12
None
AIN14/P1.13
P1.14 and P1.01
AIN15/P1.14
None
AINx
STR75XX
VDD
IL
±1
μA
VT
0.6V
VT
0.6V
CADC
3.2pF
VAIN
RAIN
10-Bit A/D
Conversion
2k
Ω(max)
CAIN
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