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AD7761 Datasheet(PDF) 63 Page - Analog Devices

Part # AD7761
Description  8-Channel, 16-Bit, Simultaneous Sampling ADC with Power Scaling, 110.8 kHz BW
PDF  76 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7761 Datasheet(HTML) 63 Page - Analog Devices

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AD7761
Data Sheet
Rev. A | Page 62 of 75
CHANNEL STANDBY REGISTER
Address: 0x00, Reset: 0x00, Name: Channel Standby
Each of the ADC channels can be put into standby mode independently by setting the appropriate bit in the channel standby register.
When a channel is in standby mode, its position in the data output stream is held. The 8-bit header is all zeros, as is the conversion result
output of 16 zeros.
The VCM voltage output is associated with the Channel 0 circuitry. If Channel 0 is put into standby mode, the VCM voltage output is also
disabled for maximum power savings. Channel 0 must be enabled while VCM is being used externally to the AD7761.
The crystal excitation circuitry is associated with the Channel 4 circuitry. If Channel 4 is put into standby mode, the crystal circuitry is
also disabled for maximum power savings. Channel 4 must be enabled while the external crystal is used on the AD7761.
Table 34. Bit Descriptions for Channel Standby
Bits
Bit Name
Settings
Description
Reset
Access
7
CH_7
Channel 7
0x0
RW
0
Enabled
1
Standby
6
CH_6
Channel 6
0x0
RW
0
Enabled
1
Standby
5
CH_5
Channel 5
0x0
RW
0
Enabled
1
Standby
4
CH_4
Channel 4
0x0
RW
0
Enabled
1
Standby
3
CH_3
Channel 3
0x0
RW
0
Enabled
1
Standby
2
CH_2
Channel 2
0x0
RW
0
Enabled
1
Standby
1
CH_1
Channel 1
0x0
RW
0
Enabled
1
Standby
0
CH_0
Channel 0
0x0
RW
0
Enabled
1
Standby



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