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IIS2MDC 数据表(PDF) 16 Page - STMicroelectronics

部件名 IIS2MDC
功能描述  High-accuracy, ultra-low-power, 3-axis digital output magnetometer
PDF  40 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

IIS2MDC 数据表(HTML) 16 Page - STMicroelectronics

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Functionality
IIS2MDC
16/40
DocID030986 Rev 1
4
Functionality
4.1
Power modes
The IIS2MDC provides two different power modes: high-resolution and low-power modes.
The tables below summarize the RMS noise values and current consumption in different
product configurations.
When the low-pass filter is enabled, the bandwidth is reduced while noise performance is
improved without any increase in power consumption.
Table 10. RMS noise of operating modes
CFG_REG_B[LPF]
or
CFG_REG_B[OFF_CANC]
(CFG_REG_A[LP = 0])
high-resolution mode
(CFG_REG_A[LP = 1])
low-power mode
BW [Hz]
Noise RMS [mg]
BW [Hz]
Noise RMS [mg]
0 (disable)
ODR/2
4.5
ODR/2
9
1 (enable)
ODR/4
3
ODR/4
6
Table 11. Current consumption of operating modes
ODR
(Hz)
Current consumption
(μA)
(CFG_REG_A
[LP] = 0)
high-resolution
CFG_REG_B
[OFF_CANC] = 0
Current consumption
(μA)
(CFG_REG_A
[LP] = 1)
low-power
CFG_REG_B
[OFF_CANC] = 0
Current consumption
(μA)
(CFG_REG_A
[LP] = 0)
high-resolution
CFG_REG_B
[OFF_CANC] = 1
Current consumption
(μA)
(CFG_REG_A
[LP] = 1)
low-power
CFG_REG_B
[OFF_CANC] = 1
10
100
25
120
50
20
200
50
235
100
50
475
125
575
235
100
950
250
1130
460



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