AD7192 Analog Devices, AD7192 Datasheet - Page 30
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AD7192
Manufacturer Part Number
AD7192
Description
4.8 kHz Ultra-Low Noise 24-Bit Sigma-Delta ADC with PGA
Manufacturer
Analog Devices
Datasheet
1.AD7192.pdf
(40 pages)
Specifications of AD7192
Resolution (bits)
24bit
# Chan
4
Sample Rate
4.8kSPS
Interface
Ser,SPI
Analog Input Type
Diff-Bip,Diff-Uni,SE-Bip,SE-Uni
Ain Range
± (Vref/Gain)
Adc Architecture
Sigma-Delta
Pkg Type
SOP
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AD7192
Continuous Conversion Mode
Continuous conversion is the default power-up mode. The
AD7192 converts continuously, and the RDY bit in the status
register goes low each time a conversion is complete. If CS is
low, the DOUT/ RDY line also goes low when a conversion is
completed. To read a conversion, the user writes to the
communications register, indicating that the next operation is a
read of the data register. When the data-word has been read
from the data register, DOUT/ RDY goes high. The user can
read this register additional times, if required. However, the
user must ensure that the data register is not being accessed at
the completion of the next conversion or else the new conversion
word is lost.
DOUT/RDY
SCLK
DIN
CS
0x58
Figure 30. Continuous Conversion
Rev. A | Page 30 of 40
DATA
When several channels are enabled, the ADC continuously
loops through the enabled channels, performing one conversion
on each channel per loop. The data register is updated as soon
as each conversion is available. The DOUT/ RDY pin pulses low
each time a conversion is available. The user can then read the
conversion while the ADC converts on the next enabled channel.
If the DAT_STA bit in the mode register is set to 1, the contents
of the status register are output along with the conversion each
time that the data read is performed. The status register
indicates the channel to which the conversion corresponds.
0x58
DATA