参数资料
型号: EVAL-AD7747EBZ
厂商: Analog Devices Inc
文件页数: 10/28页
文件大小: 0K
描述: BOARD EVAL FOR AD7747
标准包装: 1
传感器类型: 触摸,电容式
接口: I²C
电源电压: 2.7 V ~ 5.25 V
嵌入式:
已供物品: 板,缆线,CD
已用 IC / 零件: AD7747
产品目录页面: 781 (CN2011-ZH PDF)
相关产品: AD7747ARUZ-REEL7-ND - IC CONV CAP TO DIG 24BIT 16TSSOP
AD7747ARUZ-REEL-ND - IC CONV CAP TO DIG 24BIT 16TSSOP
AD7747ARUZ-ND - IC CONV 24BIT CAP-DGTL 16-TSSOP
AD7747
Rev. 0 | Page 18 of 28
CONFIGURATION REGISTER
Address Pointer 0x0A, Default Value 0xA0
Converter update rate and mode of operation setup.
Table 17. Configuration Register Bit Map
Bit
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Mnemonic
VTFS1
VTFS0
CAPFS2
CAPFS1
CAPFS0
MD2
MD1
MD0
Default
0
Table 18.
Bit
Mnemonic
Description
Voltage/temperature channel digital filter setup—conversion time/update rate setup.
VTCHOP = 1
VTFS1
VTFS0
Conversion Time (ms)
Update Rate (Hz)
3 dB Frequency (Hz)
0
20.1
49.8
26.4
0
1
32.1
31.2
15.9
1
0
62.1
16.1
8.0
7
6
VTFS1
VTFS0
1
122.1
8.2
4.0
Capacitive channel digital filter setup—conversion time/update rate setup.
CAPFS2
CAPFS1
CAPFS0
Conversion Time (ms)
Update Rate
3 dB Frequency (Hz)
0
22.0
45.5
43.6
0
1
23.9
41.9
39.5
0
1
0
40.0
25.0
21.8
0
1
76.0
13.2
10.9
1
0
124.0
8.1
6.9
1
0
1
154.0
6.5
5.3
1
0
184.0
5.5
4.4
5
4
3
CAPFS2
CAPFS1
CAPFS0
1
219.3
4.6
4.0
Converter mode of operation setup.
MD2
MD1
MD0
Mode
0
Idle
0
1
Continuous conversion
0
1
0
Single conversion
0
1
Power-down
1
0
1
0
1
Capacitance system offset calibration
1
0
Capacitance or voltage system gain calibration
2
1
0
MD2
MD1
MD0
1
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