Data Sheet
ADuM1280/ADuM1281/ADuM1285/ADuM1286
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS—5 V OPERATION
All typical specifications are at TA = 25°C, VDD1 = VDD2 = 5 V. Minimum/maximum specifications apply over the entire recommended
operation range: 4.5 V ≤ VDD1 ≤ 5.5 V, 4.5 V ≤ VDD2 ≤ 5.5 V, −40°C ≤ TA ≤ 125°C, unless otherwise noted. Switching specifications are
tested with CL = 15 pF and CMOS signal levels, unless otherwise noted.
Table 1.
A Grade
Typ
B Grade
Typ
C Grade
Typ
Parameter
Symbol
Min
Min
Min
Max
Min
10
Max
Unit
Test Conditions
SWITCHING SPECIFICATIONS
Pulse Width
PW
1000
40
Within PWD limit
ns
Data Rate
1
25
35
3
Within PWD limit
100
24
2
Mbps
ns
ns
ps/°C
ns
Propagation Delay
Pulse Width Distortion
Change vs. Temperature
Propagation Delay Skew
tPHL, tPLH
PWD
50
10
13
50% input to 50% output
18
|tPLH − tPHL
|
7
2
3
1.5
tPSK
38
12
Between any two units
at same operating
conditions
9
Channel Matching
Codirectional
Opposing Direction
Jitter
tPSKCD
tPSKOD
5
3
6
2
5
ns
ns
ns
10
2
1
Table 2.
1 Mbps–A, B, C Grade
25 Mbps–B Grade
100 Mbps–B Grade
Parameter
Symbol
Min
Typ
Min
Min
Typ
Max
Min
Typ
Max
Unit
Test Conditions
SUPPLY CURRENT
ADuM1280/ADuM1285
No load
IDD1
IDD2
IDD1
IDD2
1.1
2.7
2.1
2.3
1.6
4.5
2.6
2.9
6.2
4.8
4.9
4.7
7.0
7.0
6.0
6.4
20
9.5
15
25
15
19
19
mA
mA
mA
mA
ADuM1281/ADuM1286
15.6
Table 3. 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
5.0
4.8
0.0
0.2
V
V
V
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
Logic Low Output Voltages
VOL
II
0.1
0.4
+10
Input Current per Channel
Supply Current per Channel
−10
+0.01
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
1.6
0.09
0.04
0.8
2.0
mA
mA
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
|CM|
2.5
35
ns
kV/µs
10% to 90%
VIx = VDDx, VCM = 1000 V,
25
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.
Rev. 0 | Page 3 of 16