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AD7779 Datasheet(PDF) 9 Page - Analog Devices

Part # AD7779
Description  8-Channel, 24-Bit, Simultaneous Sampling ADC
PDF  97 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7779 Datasheet(HTML) 9 Page - Analog Devices

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Data Sheet
AD7779
Rev. 0 | Page 9 of 97
DOUTx TIMING CHARACTERISTISTICS
AVDD1x/AVSSx = ±1.65 V, 3.3 V/AGND, AVDD2 − AVSSx = 2.2 V to 3.6 V; IOVDD = 1.8 V to 3.6 V; DGND = 0 V, REFx+/REFx− =
2.5 V internal/external, MCLK = 8192 kHz; all specifications at TMIN to TMAX, unless otherwise noted.
Table 2.
Parameter
Description1
Test Conditions/Comments
Min
Typ
Max
Unit
t1
MCLK Frequency
50:50
0.655
8.192
MHz
t2
MCLK Low Time
60
ns
t3
MCLK High Time
60
ns
t4
DCLKx High Time
MCLK/2
122
ns
t5
DCLKx Low Time
MCLK/2
122
ns
t6
MCLK Falling Edge to DCLK Rising Edge
15
ns
t7
MCLK Falling Edge to DCLK Falling Edge
15
ns
t8
DCLKx Rising Edge to DRDY Rising Edge
5
ns
t9
DCLKx Rising Edge to DRDY Falling Edge
5
ns
t10
DOUTx Setup Time
20
ns
t11
DOUTx Hold Time
20
ns
1 All input signals are specified with tR = tF = 1 ns/V (10% to 90% of IOVDD) and timed from a voltage level of (VIL + VIH)/2.
MCLK
DCLK
DRDY
LSB
MSB
MSB – 1
LSB + 1
LSB
DOUTx
t2
t4
t5
t6
t7
t10
t11
t8
t9
t1
t3
Figure 2. Data Interface Timing Diagram



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