參數(shù)資料
型號: AD7746
廠商: ANALOG DEVICES INC
元件分類: 溫度/濕度傳感器
英文描述: DIGITAL TEMP SENSOR-SERIAL, 24BIT(s), 2Cel, RECTANGULAR, SURFACE MOUNT
封裝: MO-153AB, TSSOP-16
文件頁數(shù): 6/17頁
文件大小: 232K
代理商: AD7746
AD7745/AD7746
Preliminary Technical Data
Rev. PrF | Page 14 of 17
CONFIGURATION REGISTER
Address pointer 0x0A, default value 0xA0
Converter update rate and mode of operation setup.
Bit
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Mnemonic
VTF1
VTF0
CAPF2
CAPF1
CAPF0
MD2
MD1
MD0
Default
0
Bit
Mnemonic
Description
7
6
VTF1
VTF0
Voltage / temperature channel digital filter setup - conversion time / update rate setup.
The conversion times in this table are valid for the CLKCTRL = 0 in the EXC SETUP register. The conversion
times are longer by factor of two for the CLKCTRL = 1.
VTCHOP = 1
VTF1
VTF0
Conversion
Time (ms)
Update Rate
(Hz)
0
20.1
49.8
0
1
32.1
31.2
1
0
62.1
16.1
1
122.1
8.2
5
4
3
CAPF2
CAPF1
CAPF0
Capacitive channel digital filter setup - conversion time / update rate setup.
The conversion times in this table are valid for the CLKCTRL = 0 in the EXC SETUP register. The conversion
times are longer by factor of two for the CLKCTRL = 1.
CAP CHOP = 1
CAP CHOP = 0
CAPF2
CAPF1
CAPF0
Conversion
Time (ms)
Update Rate
(Hz)
Conversion
Time (ms)
Update Rate
(Hz)
0
20.1
49.8
11.0
90.9
0
1
22.0
45.6
11.9
83.8
0
1
0
38.1
26.3
20.0
50.0
0
1
74.1
13.5
38.0
26.3
1
0
122.1
8.2
62.0
16.1
1
0
1
152.1
6.6
77.0
13.0
1
0
182.1
5.5
92.0
10.9
1
217.3
4.6
109.6
9.1
2
1
0
MD2
MD1
MD0
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 Offset Calibration
1
0
Capacitance or Voltage Gain Calibration
1
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