AD7924 Analog Devices, AD7924 Datasheet - Page 17
AD7924
Manufacturer Part Number
AD7924
Description
4-Channel, 1 MSPS, 12-Bit A/D Converter with Sequencer in 16-Lead TSSOP
Manufacturer
Analog Devices
Datasheet
1.AD7904.pdf
(32 pages)
Specifications of AD7924
Resolution (bits)
12bit
# Chan
4
Sample Rate
1MSPS
Interface
Ser,SPI
Analog Input Type
SE-Uni
Ain Range
Uni (Vref),Uni (Vref) x 2
Adc Architecture
SAR
Pkg Type
SOP
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CS
CS
CS
DIN: WRITE TO CONTROL REGISTER,
WRITE BIT = 1,
SELECT CODING, RANGE, AND POWER MODE.
SELECT CHANNEL ADD1, ADD0 FOR CONVERSION.
SEQ1 = 1, SEQ0 = 1
DOUT: CONVERSION RESULT FROM CHANNEL 0
CONTINUOUSLY CONVERTS ON A CONSECUTIVE
SEQUENCE OF CHANNELS FROM CHANNEL 0 UP
TO AND INCLUDING THE PREVIOUSLY SELECTED
ADD1, ADD0 IN THE CONTROL REGISTER
CONTINUOUSLY CONVERTS ON THE SELECTED
SEQUENCE OF CHANNELS BUT WILL ALLOW
RANGE, CODING, AND SO FORTH, TO CHANGE IN
THE CONTROL REGISTER WITHOUT INTERRUPTING
THE SEQUENCE, PROVIDED SEQ1 = 1, SEQ0 = 0
Figure 12. SEQ1 Bit = 1, SEQ0 Bit = 1 Flowchart
DUMMY CONVERSION
Rev. B | Page 17 of 32
POWER ON
WRITE BIT = 0
WRITE BIT = 1,
SEQ1 = 1,
SEQ0 = 0
AD7904/AD7914/AD7924