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ADUM7440 Datasheet(PDF) 5 Page - Analog Devices

No. de pieza ADUM7440
Descripción Electrónicos  1 kV RMS Quad-Channel Digital Isolators
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ADUM7440 Datasheet(HTML) 5 Page - Analog Devices

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ADuM7440/ADuM7441/ADuM7442
Rev. 0 | Page 5 of 20
ELECTRICAL CHARACTERISTICS—MIXED 5 V/3.3 V OPERATION
All typical specifications are at TA = 25°C, VDD1 = 5 V, VDD2 = 3.3 V. Minimum/maximum specifications apply over the entire recom-
mended operation range of 4.5 V ≤ VDD1 ≤ 5.5 V, 3.0 V ≤ VDD2 ≤ 3.6 V; and −40°C ≤ TA ≤ +105°C, unless otherwise noted. Switching
specifications are tested with CL = 15 pF and CMOS signal levels, unless otherwise noted.
Table 6.
Parameter
Symbol
A Grade
C Grade
Unit
Test Conditions
Min
Typ
Max
Min
Typ
Max
SWITCHING SPECIFICATIONS
Data Rate
1
25
Mbps
Within PWD limit
Propagation Delay
tPHL tPLH
50
75
29
42
55
ns
50% input to 50% output
Pulse Width Distortion
PWD
10
25
2
5
ns
|tPLH − tPHL|
Change vs. Temperature
5
3
ps/°C
Pulse Width
PW
250
40
ns
Within PWD limit
Propagation Delay Skew
tPSK
40
25
ns
Between any two units
Channel Matching
Codirectional
tPSKCD
40
2
5
ns
Opposing-Direction
tPSKOD
40
3
6
ns
Jitter
2
2
ns
7
Codirectional channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on the same side of the isolation barrier. Opposing-directional channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on opposing sides of the isolation barrier.
Table 7.
Parameter
Symbol
1 Mbps—A, C Grades
25 Mbps—C Grade
Unit
Min
Typ
Max
Min
Typ
Max
Test Conditions
SUPPLY CURRENT
ADuM7440
IDD1
4.4
5.5
28
35
mA
IDD2
1.6
2.1
3.5
4.5
mA
ADuM7441
IDD1
3.7
5.0
19
27
mA
IDD2
2.2
2.8
5.2
7.0
mA
ADuM7442
IDD1
3.2
3.9
15
20
mA
IDD2
2.0
2.6
7.8
12
mA
Table 8. For All Models
Parameter
Symbol
Min
Typ
Max
Unit
Test Conditions
DC SPECIFICATIONS
Logic High Input Threshold
VIH
0.7 VDDx
V
Logic Low Input Threshold
VIL
0.3 VDDx
V
Logic High Output Voltages
VOH
VDDx − 0.1
VDDx− 0.4
VDDx
VDDx − 0.2
V
V
IOx = −20 μA, VIx = VIxH
IOx = −4 mA, VIx = VIxH
Logic Low Output Voltages
VOL
0.0
0.2
0.1
0.4
V
V
IOx = 20 μA, VIx = VIxL
IOx = 4 mA, VIx = VIxL
Input Current per Channel
II
−10
+0.01
+10
μA
0 V ≤ VIx ≤ VDDx
Supply Current per Channel
Quiescent Input Supply Current
IDDI(Q)
0.77
mA
Quiescent Output Supply Current
IDDO(Q)
0.40
mA
Dynamic Input Supply Current
IDDI(D)
0.26
mA/Mbps
Dynamic Output Supply Current
IDDO(D)
0.02
mA/Mbps
AC SPECIFICATIONS
Output Rise/Fall Time
tR/tF
2.5
ns
10% to 90%
Common-Mode Transient Immunity1
|CM|
15
20
kV/μs
VIx = VDDx, VCM = 1000 V,
transient magnitude = 800 V
Refresh Rate
fr
1.2
Mbps
1 |CM| is the maximum common-mode voltage slew rate that can be sustained while maintaining
VO > 0.8 VDD. The common-mode voltage slew rates apply to both
rising and falling common-mode voltage edges.


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