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AD7400 Datasheet(PDF) 4 Page - Analog Devices

Part # AD7400
Description  Isolated Sigma-Delta Modulator
PDF  20 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7400 Datasheet(HTML) 4 Page - Analog Devices

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AD7400
Rev. A | Page 4 of 20
TIMING SPECIFICATIONS
VDD1 = 4.5 V to 5.25 V, VDD2 = 3 V to 5.5 V, TA = TMAX to TMIN, unless otherwise noted.1
Table 2.
Parameter
Limit at TMIN, TMAX
Unit
Description
fMCLKOUT2
10
MHz typ
Master clock output frequency
9/11
MHz min/MHz max
Master clock output frequency
t13
40
ns max
Data access time after MCLK rising edge
t23
10
ns min
Data hold time after MCLK rising edge
t3
0.4 × tMCLKOUT
ns min
Master clock low time
t4
0.4 × tMCLKOUT
ns min
Master clock high time
1 Sample tested during initial release to ensure compliance.
2 Mark space ratio for clock output is 40/60 to 60/40.
3 Measured with the load circuit of Figure 2 and defined as the time required for the output to cross 0.8 V or 2.0 V.
200µA
IOL
200µA
IOH
+1.6V
TO OUTPUT
PIN
CL
25pF
Figure 2. Load Circuit for Digital Output Timing Specifications
MCLKOUT
MDAT
t1
t2
t4
t3
Figure 3. Data Timing



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