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AD7381 Datasheet(PDF) 6 Page - Analog Devices

Part # AD7381
Description  Differential Input, Quad, Internal Reference Simultaneous Sampling, 16-Bit SAR ADC
PDF  31 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7381 Datasheet(HTML) 6 Page - Analog Devices

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AD7389-4
Data Sheet
Rev. 0 | Page 6 of 31
Timing Diagrams
CS
12
34
56
7
8
9
10
11
12
13
14
15
16
SCLK
TRISTATE
TRISTATE
SDOA
TRISTATE
TRISTATE
SDOB
DB15
DB14
DB13
DB12
DB15
DB14
DB13
DB12
DB15
DB14
DB13
DB12
DB11
DB11
DB11
DB10
DB10
DB9
DB8
DB7
DB6
DB5
DB4
DB3
DB2
1
DB0
DB9
DB8
DB7
DB6
DB5
DB4
DB3
DB2
1
DB0
DB10
DB9
DB8
DB7
DB6
DB5
DB4
DB3
DB2
1
DB0
SDI
tCYC
tCSH
tQUIET
tSCLKCS
tSCLK
tSCLKED
tSCLKH
tSCLKL
tSDOEN
tSDOH
tSDOS
tSDOT
tSDIS
tSDIH
Figure 2. Serial Interface Timing Diagram
CS
CONVERSION
CONVERSION
ACQUIRE
ACQUIRE
tCONVERT
tACQUIRE
Figure 3. Internal Conversion Acquire Timing
CS
tPOWERUP
TIME TO ACCURATE CONVERSION
VCC
Figure 4. Power-Up Time to Conversion
VCC
CS
SDI
t
REGWRITE
REG
WRITE
Figure 5. Power-Up Time to Register Read Write Access
CS
SHUTDOWN
NORMAL
SDI
t
STARTUP
SHUTDOWN MODE
NORMAL MODE
ACCURATE CONVERSION
Figure 6. Shutdown Mode to Normal Mode Timing
CONVERSION
ACQUIRE
ACQUIRE
CS
CONVERSION
ACQUIRE
CONVERSION
ACQUIRE
INTERNAL
tCONVERT1
tCONVERT0
tCONVERT2
CONVERSION
tCONVERT3
tCONVERTx
Figure 7. Conversion Timing During OS Normal Mode



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