Data Sheet
ADuM2280/ADuM2281/ADuM2285/ADuM2286
ELECTRICAL CHARACTERISTICS—MIXED 5 V/3 V OPERATION
All typical specifications are at TA = 25°C, VDD1 = 5 V, V DD2 = 3.0 V. Minimum/maximum specifications apply over the entire recom-
mended operation range: 4.5 V ≤ VDD1 ≤ 5.5 V, 2.7 V ≤ VDD2 ≤ 3.6 V; and −40°C ≤ TA ≤ 125°C, unless otherwise noted. Switching
specifications are tested with CL = 15 pF and CMOS signal levels, unless otherwise noted.
Table 7.
A Grade
Typ
B Grade
Typ
C Grade
Typ
Parameter
Symbol
Min
Max Min
Max
Min
10
Max
Unit
Test Conditions
SWITCHING SPECIFICATIONS
Pulse Width
PW
1000
40
ns
Within PWD limit
Data Rate
1
25
39
3
100
26
2
Mbps
ns
Within PWD limit
Propagation Delay
Pulse Width Distortion
Change vs. Temperature
Propagation Delay Skew
tPHL, tPLH
PWD
50
10
13
20
50% input to 50% output
ns
|tPLH − tPHL|
7
2
3
1.5
ps/°C
ns
tPSK
38
16
12
Between any two units
at same operating
conditions
Channel Matching
Codirectional
tPSKCD
tPSKOD
5
3
6
2
5
ns
ns
ns
Opposing-Direction
10
Jitter
2
1
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 8.
1 Mbps—A, B, C Grades
25 Mbps—B, C Grades
100 Mbps—C Grades
Parameter
Symbol
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max
Unit
Test Conditions
SUPPLY CURRENT
ADuM2280/ADuM2285
No load
IDD1
IDD2
IDD1
IDD2
1.3
2.0
2.3
1.7
1.6
3.5
2.6
2.3
6.2
2.7
5.8
3.9
7.0
4.6
6.5
6.2
20
4.8
16
11
25
9.0
19
15
mA
mA
mA
mA
ADuM2281/ADuM2286
Table 9. For All Models
Parameter
Symbol Min
Typ
Max
Unit
Test Conditions
DC SPECIFICATIONS
Logic High Input Threshold
Logic Low Input Threshold
Logic High Output Voltages
VIH
VIL
0.7 VDDx
VDDx − 0.1
V
0.3 VDDx
V
VOH
VDDx
V
IOx = −20 µA, VIx = VIxH
IOx = −4 mA, VIx = VIxH
IOx = 20 µA, VIx = VIxL
IOx = 4 mA, VIx = VIxL
0 V ≤ VIx ≤ VDDx
VDDx − 0.4
VDDx − 0.2
0.0
V
Logic Low Output Voltages
VOL
II
0.1
0.4
V
0.2
V
Input Current per Channel
Supply Current per Channel
−10
+0.01
+10
µA
Quiescent Input Supply Current
Quiescent Output Supply Current
Dynamic Input Supply Current
Dynamic Output Supply Current
Undervoltage Lockout
IDDI(Q)
IDDO(Q)
IDDI(D)
IDDO(D)
0.54
1.2
0.75
2.0
mA
mA
0.09
0.02
mA/Mbps
mA/Mbps
Positive VDDx Threshold
VDDxUV+
VDDxUV−
VDDxUVH
2.6
2.4
0.2
V
V
V
Negative VDDx Threshold
VDDx Hysteresis
AC SPECIFICATIONS
Output Rise/Fall Time
Common-Mode Transient Immunity1
tR/tF
2.5
35
ns
10% to 90%
|CM|
25
kV/µs
VIx = VDDx, VCM = 1000 V,
transient magnitude = 800 V
Refresh Period
tr
1.6
µs
1|CM| is the maximum common-mode voltage slew rate that can be sustained while maintaining VO > 0.8 VDDx. The common-mode voltage slew rates apply to both
rising and falling common-mode voltage edges.
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