參數(shù)資料
型號: EVAL-AD7190EBZ
廠商: Analog Devices Inc
文件頁數(shù): 26/41頁
文件大小: 0K
描述: BOARD EVAL FOR AD7190
設(shè)計資源: EVAL-AD7190EBZ Schematic
標(biāo)準(zhǔn)包裝: 1
ADC 的數(shù)量: 1
位數(shù): 24
采樣率(每秒): 4.8k
數(shù)據(jù)接口: 串行
輸入范圍: ±VREF/增益
在以下條件下的電源(標(biāo)準(zhǔn)): 36.8mW @ 4.8kSPS
工作溫度: -40°C ~ 105°C
已用 IC / 零件: AD7190
已供物品: 板,CD
Data Sheet
AD7190
Rev. C | Page 31 of 40
Continuous Conversion Mode
Continuous conversion is the default power-up mode. The
AD7190 converts continuously, the RDY bit in the status
register going 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 com-
munications 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.
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.
DIN
SCLK
DOUT/RDY
CS
0x58
DATA
07640-
022
Figure 30. Continuous Conversion
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