= 5 V. Minimum/maximum specifications apply over the entire recommended
operation range: 4.5 V ≤ V
DD1
≤ 5.5 V, 4.5 V ≤ V
DD2
≤ 5.5 V, −40°C ≤ T
A
≤ 125°C, unless otherwise noted. Switching specifications are
tested with C
L
= 15 pF and CMOS signal levels, unless otherwise noted.
Table 1.
Parameter
SWITCHING SPECIFICATIONS
Pulse Width
Data Rate
Propagation Delay
Pulse Width Distortion
Change vs. Temperature
Propagation Delay Skew
Channel Matching
Codirectional
Opposing Direction
Jitter
Symbol
PW
t
PHL
, t
PLH
PWD
7
t
PSK
38
Min
1000
1
50
10
3
12
A Grade
Typ
Min
Min
40
25
35
3
B Grade
Typ
Max
Min
10
13
C Grade
Typ
Max
Unit
Test Conditions
Within PWD limit
Within PWD limit
50% input to 50% output
|t
PLH
− t
PHL
|
Between any two units
at same operating
conditions
18
1.5
100
24
2
ns
Mbps
ns
ns
ps/°C
9
ns
t
PSKCD
t
PSKOD
2
5
10
2
3
6
2
5
1
ns
ns
ns
Table 2.
Parameter
SUPPLY CURRENT
ADuM1280/ADuM1285
ADuM1281/ADuM1286
Symbol
I
DD1
I
DD2
I
DD1
I
DD2
1 Mbps–A, B, C Grade
Min
Typ
Min
1.1
2.7
2.1
2.3
1.6
4.5
2.6
2.9
25 Mbps–B Grade
Min
Typ
Max
6.2
4.8
4.9
4.7
7.0
7.0
6.0
6.4
100 Mbps–B Grade
Min
Typ
Max
20
9.5
15
15.6
25
15
19
19
Unit
mA
mA
mA
mA
Test Conditions
No load
Table 3. For All Models
Parameter
DC SPECIFICATIONS
Logic High Input Threshold
Logic Low Input Threshold
Logic High Output Voltages
Logic Low Output Voltages
Input Current per Channel
Supply Current per Channel
Quiescent Input Supply Current
Quiescent Output Supply Current
Dynamic Input Supply Current
Dynamic Output Supply Current
Undervoltage Lockout
Positive V
DDx
Threshold
Negative V
DDx
Threshold
V
DDx
Hysteresis
AC SPECIFICATIONS
Output Rise/Fall Time
Common-Mode Transient Immunity
1
Refresh Period
1
Symbol
V
IH
V
IL
V
OH
V
OL
I
I
I
DDI(Q)
I
DDO(Q)
I
DDI(D)
I
DDO(D)
V
DDXUV+
V
DDXUV-
V
DDXUVH
t
R
/t
F
|CM|
t
r
Min
0.7 V
DDx
Typ
Max
Unit
V
V
V
V
V
V
µA
mA
mA
mA/Mbps
mA/Mbps
V
V
V
ns
kV/µs
µs
Test Conditions
0.3 V
DDx
V
DDx
− 0.1
V
DDx
− 0.4
5.0
4.8
0.0
0.2
+0.01
0.54
1.6
0.09
0.04
2.6
2.4
0.2
2.5
35
1.6
−10
0.1
0.4
+10
0.8
2.0
I
Ox
= −20 µA, V
Ix
= V
IxH
I
Ox
= −4 mA, V
Ix
= V
IxH
I
Ox
= 20 µA, V
Ix
= V
IxL
I
Ox
= 4 mA, V
Ix
= V
IxL
0 V ≤ V
Ix
≤ V
DDx
25
10% to 90%
V
Ix
= V
DDx
, V
CM
= 1000 V,
transient magnitude = 800 V
|CM| is the maximum common-mode voltage slew rate that can be sustained while maintaining V
o
> 0.8 V
DDx
. The common-mode voltage slew rates apply to both
rising and falling common-mode voltage edges.
Rev. 0 | Page 3 of 16
ADuM1280/ADuM1281/ADuM1285/ADuM1286
ELECTRICAL CHARACTERISTICS—3 V OPERATION
Data Sheet
All typical specifications are at T
A
= 25°C, V
DD1
= V
DD2
= 3.0 V. Minimum/maximum specifications apply over the entire recommended
operation range: 2.7 V ≤ V
DD1
≤ 3.6 V, 2.7 V ≤ V
DD2
≤ 3.6 V, −40°C ≤ T
A
≤ 125°C, unless otherwise noted. Switching specifications are
tested with C
L
= 15 pF and CMOS signal levels, unless otherwise noted.
Table 4.
Parameter
SWITCHING SPECIFICATIONS
Pulse Width
Data Rate
Propagation Delay
Pulse Width Distortion
Change vs. Temperature
Propagation Delay Skew
Channel Matching
Codirectional
Opposing-Direction
Jitter
Symbol
PW
t
PHL
, t
PLH
PWD
7
t
PSK
38
Min
1000
1
50
10
3
16
A Grade
Typ
Min
Min
40
25
35
3
B Grade
Typ
Max
Min
10
20
C Grade
Typ
Max
Unit
Test Conditions
Within PWD limit
Within PWD limit
50% input to 50% output
|t
PLH
− t
PHL
|
Between any two units
at same operating
conditions
25
1.5
100
33
2.5
ns
Mbps
ns
ns
ps/°C
12
ns
t
PSKCD
t
PSKOD
2
5
10
2
3
6
2.5
5
1
ns
ns
ns
7 Codirectional channel matchi ng is the absol ute value of the difference in propa gation delays betwee n any two c hannels with i nputs on the same side of the isolati on barrier. Opposing-directional channel matching is the abs olute val ue of the differe nce in propagati on delays betwee n any two c hannels wit h inputs on opposi ng sides of the is olation barrier.
Table 5.
Parameter
SUPPLY CURRENT
ADuM1280/ADuM1285
ADuM1281/ADuM1286
Symbol
I
DD1
I
DD2
I
DD1
I
DD2
1 Mbps–A, B, C Grade
Min
Typ
Min
25 Mbps–B, C Grade
Min
Typ
Max
100 Mbps–C Grade
Min
Typ
Max
Unit
mA
mA
mA
mA
Test Conditions
No load
0.75
2.0
1.6
1.7
Symbol
V
IH
V
IL
V
OH
V
OL
I
I
I
DDI(Q)
I
DDO(Q)
I
DDI(D)
I
DDO(D)
V
DDxUV+
V
DDxUV−
V
DDxUVH
t
R
/t
F
|CM|
t
r
−10
Min
1.4
3.5
2.1
2.3
5.1
2.7
3.8
3.9
Typ
9.0
4.6
5.0
6.2
Max
17
4.8
11
11
Unit
V
V
V
V
V
V
µA
23
9
15
15
Table 6. For All Models
Parameter
DC SPECIFICATIONS
Logic High Input Threshold
Logic Low Input Threshold
Logic High Output Voltages
Logic Low Output Voltages
Input Current per Channel
Supply Current per Channel
Quiescent Input Supply Current
Quiescent Output Supply Current
Dynamic Input Supply Current
Dynamic Output Supply Current
Undervoltage Lockout
Positive V
DDx
Threshold
Negative V
DDx
Threshold
V
DDX
Hysteresis
AC SPECIFICATIONS
Output Rise/Fall Time
Common-Mode Transient Immunity
1
Refresh Period
1
Test Conditions
0.7 V
DDx
0.3 V
DDx
V
DDx
− 0.1
V
DDx
− 0.4
3.0
2.8
0.0
0.2
+0.01
0.4
1.2
0.08
0.015
2.6
2.4
0.2
3
35
1.6
0.1
0.4
+10
0.6
1.7
I
Ox
= −20 µA, V
Ix
= V
IxH
I
Ox
= −4 mA, V
Ix
= V
IxH
I
Ox
= 20 µA, V
Ix
= V
IxL
I
Ox
= 4 mA, V
Ix
= V
IxL
0 V ≤ V
Ix
≤ V
DDx
mA
mA
mA/Mbps
mA/Mbps
V
V
V
ns
kV/µs
µs
10% to 90%
V
Ix
= V
DDx
, V
CM
= 1000 V,
transient magnitude = 800 V
25
|CM| is the maximum common-mode voltage slew rate that can be sustained while maintaining V
o
> 0.8 V
DDX.
The common-mode voltage slew rates apply to both
rising and falling common-mode voltage edges.
Rev. 0 | Page 4 of 16
Data Sheet
ADuM1280/ADuM1281/ADuM1285/ADuM1286
ELECTRICAL CHARACTERISTICS—MIXED 5 V/3 V OPERATION
All typical specifications are at T
A
= 25°C, V
DD1
= 5 V, V
DD2
= 3.0 V. Minimum/maximum specifications apply over the entire
recommended operation range: 4.5 V ≤ V
DD1
≤ 5.5 V, 2.7 V ≤ V
DD2
≤ 3.6 V; and −40°C ≤ T
A
≤ 125°C, unless otherwise noted. Switching
specifications are tested with C
L
= 15 pF and CMOS signal levels unless otherwise noted.
Table 7.
Parameter
SWITCHING SPECIFICATIONS
Pulse Width
Data Rate
Propagation Delay
Pulse Width Distortion
Change vs. Temperature
Propagation Delay Skew
Channel Matching
Codirectional
Opposing-Direction
Jitter
Symbol
PW
t
PHL
, t
PLH
PWD
7
t
PSK
38
Min
1000
1
50
10
3
16
A Grade
Typ
Min
Min
40
25
35
3
B Grade
Typ
Max
Min
10
13
C Grade
Typ
Max
Unit
Test Conditions
Within PWD limit
Within PWD limit
50% input to 50% output
|t
PLH
− t
PHL
|
Between any two units
at same operating
conditions
20
1.5
100
26
2
ns
Mbps
ns
ns
ps/C
12
ns
t
PSKCD
t
PSKOD
2
5
10
2
3
6
2
5
1
ns
ns
ns
7 Codirectional channel matchi ng is the absol ute value of the difference in propa gation delays betwee n any two c hannels with i nputs on the same side of the isolati on barrier. Opposing-directional channel matching is the abs olute val ue of the differe nce in propagati on delays betwee n any two c hannels wit h inputs on opposi ng sides of the is olation barrier.
Table 8.
Parameter
SUPPLY CURRENT
ADuM1280/ADuM1285
ADuM1281/ADuM1286
Symbol
I
DD1
I
DD2
I
DD1
I
DD2
1 Mbps–A, B, C Grade
Min
Typ
Min
25 Mbps–B, C Grade
Min
Typ
Max
100 Mbps–C Grade
Min
Typ
Max
Unit
mA
mA
mA
mA
Test Conditions
No load
1.1
2.0
2.1
1.7
Symbol
V
IH
V
IL
V
OH
V
OL
I
I
I
DDI(Q)
I
DDO(Q)
I
DDI(D)
I
DDO(D)
V
DDxUV+
V
DDxUV−
V
DDxUVH
t
R
/t
F
|CM|
t
r
−10
Min
1.6
3.5
2.6
2.3
6.2
2.7
4.9
3.9
Typ
7.0
4.6
6.0
6.2
20
4.8
15
11
Unit
V
V
V
V
V
V
µA
25
9.0
19
15
Table 9. For All Models
Parameter
DC SPECIFICATIONS
Logic High Input Threshold
Logic Low Input Threshold
Logic High Output Voltages
Logic Low Output Voltages
Input Current per Channel
Supply Current per Channel
Quiescent Input Supply Current
Quiescent Output Supply Current
Dynamic Input Supply Current
Dynamic Output Supply Current
Undervoltage Lockout
Positive V
DDX
Threshold
Negative V
DDX
Threshold
V
DDX
Hysteresis
AC SPECIFICATIONS
Output Rise/Fall Time
Common-Mode Transient Immunity
1
Refresh Period
1
Max
Test Conditions
0.7 V
DDx
0.3 V
DDx
V
DDx
− 0.1
V
DDx
− 0.4
V
DDx
V
DDx
− 0.2
0.0
0.2
+0.01
0.54
1.2
0.09
0.02
2.6
2.4
0.2
2.5
35
1.6
0.1
0.4
+10
0.75
2.0
I
Ox
= −20 µA, V
Ix
= V
IxH
I
Ox
= −4 mA, V
Ix
= V
IxH
I
Ox
= 20 µA, V
Ix
= V
IxL
I
Ox
= 4 mA, V
Ix
= V
IxL
0 V ≤ V
Ix
≤ V
DDx
mA
mA
mA/Mbps
mA/Mbps
V
V
V
ns
kV/µs
µs
10% to 90%
V
Ix
= V
DDx
, V
CM
= 1000 V,
transient magnitude = 800 V
25
|CM| is the maximum common-mode voltage slew rate that can be sustained while maintaining V
o
> 0.8 V
DDX
. The common-mode voltage slew rates apply to both
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