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ADuM5240/ADuM5241/ADuM5242
Data Sheet
Parameter
Symbol
Min
Typ
Max
Unit
Test Conditions
AC SPECIFICATIONS
Minimum Pulse Width 5
Maximum Data Rate 6
PW
1
100
ns
Mbps
C L = 15 pF, CMOS signal levels
C L = 15 pF, CMOS signal levels
Propagation Delay 7
Pulse Width Distortion, |t PLH ? t PHL | 8
Propagation Delay Skew 8
Channel-to-Channel Matching,
Codirectional Channels 9
Channel-to-Channel Matching,
Opposing-Directional Channels 9
Output Rise/Fall Time (10% to 90%)
Common-Mode Transient
Immunity at Logic High Output
Common-Mode Transient
Immunity at Logic Low Output
Refresh Frequency
Switching Frequency
t PHL , t PLH
PWD
t PSK
t PSKCD
t PSKCD
t R /t F
|CM H |
|CM L |
f r
f OSC
25
25
25
2.5
35
35
1.0
300
70
3
45
3
15
ns
ns
ns
ns
ns
ns
kV/μs
kV/μs
MHz
MHz
C L = 15 pF, CMOS signal levels
C L = 15 pF, CMOS signal levels
C L = 15 pF, CMOS signal levels
C L = 15 pF, CMOS signal levels
C L = 15 pF, CMOS signal levels
C L = 15 pF, CMOS signal levels
V Ix = V DD , V ISO , V CM = 1000 V,
transient magnitude = 800 V
V Ix = 0 V, V CM = 1000 V,
transient magnitude = 800 V
1
2
3
4
5
6
7
8
9
Peak noise occurs at frequency corresponding to the refresh frequency (see the PCB Layout section).
I DD (DISABLE) supply current values are specified with no load present on the digital outputs.
I ISO (DISABLE) supply current values are specified with no load present on the digital outputs and power sourced by an external supply.
Enable/disable threshold is the V DD voltage at which the internal dc-to-dc converter is enabled/disabled.
The minimum pulse width is the shortest pulse width at which the specified pulse width distortion is guaranteed.
The maximum data rate is the fastest data rate at which the specified pulse width distortion and V ISO supply voltage is guaranteed.
t PHL propagation delay is measured from the 50% level of the falling edge of the V Ix signal to the 50% level of the falling edge of the V Ox signal. t PLH propagation delay is
measured from the 50% level of the rising edge of the V Ix signal to the 50% level of the rising edge of the V Ox signal.
t PSK is the magnitude of the worst-case difference in t PHL and/or t PLH that is measured between units at the same operating temperature, supply voltages, and output
load within the recommended operating conditions.
Channel-to-channel matching is the absolute value of the difference in propagation delays between the two channels when operated with identical loads.
Rev. B | Page 4 of 16
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