参数资料
型号: AD7151BRMZ-REEL
厂商: Analog Devices Inc
文件页数: 11/28页
文件大小: 0K
描述: IC CAP CONV 1CH ULT LP 10MSOP
标准包装: 3,000
类型: 电容数字转换器
输入类型: 电压
输出类型: 数字
接口: 2 线串口
电流 - 电源: 120µA
安装类型: 表面贴装
封装/外壳: 10-TFSOP,10-MSOP(0.118",3.00mm 宽)
供应商设备封装: 10-MSOP
包装: 带卷 (TR)
AD7151
Rev. 0 | Page 19 of 28
CONFIGURATION REGISTER
Address Pointer 0x0F
8 Bits, Read/Write, Factory Preset 0x19
Table 12. Configuration Register Bit Map
Bit
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Mnemonic
ThrFixed
ThrMD1
ThrMD0
EnConv
MD2
MD1
MD0
Default
0
1
0
1
Table 13.Configuration Register Bit Descriptions
Bit
Mnemonic
Description
7
ThrFixed
ThrFixed = 1 sets the fixed threshold mode. The output reflects comparison of data and a fixed (constant) value
of the threshold register.
ThrFixed = 0 sets the adaptive threshold mode. The output reflects comparison of data to the adaptive
threshold. The adaptive threshold is set dynamically, based on the history of the previous data.
These bits set the output comparator mode.
Output Active When
ThrMD1
ThrMD0
Threshold Mode
Adaptive Threshold Mode
Fixed Threshold Mode
0
Negative
data < average – sensitivity
Data < Threshold
0
1
Positive
data > average + sensitivity
Data > Threshold
1
0
In-Window
data > average – sensitivity
AND
data < average + sensitivity
-
6
5
ThrMD1
ThrMD0
1
Out-Window
data < average – sensitivity
OR
data > average + sensitivity
-
4
EnConv
Enables conversion. This bit must be 1 for proper operation.
3
This bit must be 0 for proper operation.
Converter mode of operation setup.
MD2
MD1
MD0
Mode
Description
0
Idle
Part is fully powered up but performing no conversion.
0
1
Continuous
Conversion
Part is repeatedly performing conversions, provided the
EnConv bit is set.
0
1
0
Single Conversion
Part performs a single conversion, provided the EnConv bit
is set. After finishing the conversion(s), the part goes to the
idle mode.
0
1
Power-Down
Powers down the on-chip circuits, except the digital
interface.
2
1
0
MD2
MD1
MD0
1
X
Reserved
Do not use these modes.
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