Data Sheet
ADuM7240/ADuM7241
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 7.
A Grade
Typ
C Grade
Typ
Parameter
Symbol
Unit
Test Conditions/Comments
Min
Max
Min
40
Max
SWITCHING SPECIFICATIONS
Pulse Width
PW
250
ns
Within PWD limit
Data Rate
1
80
25
25
54
5
Mbps
ns
ns
ps/°C
ns
Within PWD limit
50% input to 50% output
|tPLH − tPHL|
Propagation Delay
Pulse Width Distortion
Change vs. Temperature
Propagation Delay Skew1
Channel Matching
Codirectional
tPHL, tPLH
PWD
55
10
5
34
44
2
3
tPSK
20
10
tPSKCD
tPSKOD
25
30
2
3
2
5
9
ns
ns
ns
Opposing Direction
Jitter
2
1 tPSK is the magnitude of the worst-case difference in tPHL or tPLH that is measured between units at the same operating temperature, supply voltages, and output load
within the recommended operating conditions.
Table 8.
1 Mbps—A, C Grades
25 Mbps—C Grade
Parameter
Unit
Symbol
Min
Typ
Max
Min
Typ
Max
Test Conditions/Comments
SUPPLY CURRENT
ADuM7240
IDD1
IDD2
IDD1
IDD2
2.2
1.3
1.9
1.4
2.9
1.6
2.3
1.6
16
21
3.6
12
mA
mA
mA
mA
2.8
9.2
5.9
ADuM7241
7.2
Table 9. For All Models
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
DC SPECIFICATIONS
Logic High Input Threshold
Logic Low Input Threshold
Logic High Output Voltages
VIH
VIL
VOH
0.7 VDDx
V
V
V
V
V
V
µA
0.3 VDDx
VDDx − 0.1
VDDx− 0.4
VDDx
VDDx − 0.3
0.0
0.2
+0.01
IOx = −20 µA, VIx = VIxH
IOx = −4 mA, VIx = VIxH
IOx = 20 µA, VIx = VIxL
IOx = 4 mA, VIx = VIxL
0 V ≤ VIx ≤ VDDx
Logic Low Output Voltages
VOL
II
0.1
0.4
+10
Input Current per Channel
Supply Current per Channel
−10
Quiescent Input Supply Current
Quiescent Output Supply Current
Dynamic Input Supply Current
Dynamic Output Supply Current
AC SPECIFICATIONS
IDDI(Q)
IDDO(Q)
IDDI(D)
IDDO(D)
1.0
1.45
0.80
mA
mA
mA/Mbps
mA/Mbps
0.59
0.25
0.02
Output Rise/Fall Time
tR/tF
2.5
25
ns
kV/µs
10% to 90%
VIx = VDDx, VCM = 1000 V,
Common-Mode Transient Immunity1 |CM|
15
transient magnitude = 800 V
Refresh Rate
fr
600
kHz
DC data inputs
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. A | Page 5 of 16