ADuM7240/ADuM7241
Data Sheet
ELECTRICAL CHARACTERISTICS—3.3 V OPERATION
All typical specifications are at TA = 25°C, VDD1 = VDD2 = 3.3 V. Minimum/maximum specifications apply over the entire recommended
operation range of 3.0 V ≤ VDD1 ≤ 3.6 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 4.
A Grade
Typ
C Grade
Typ
Min
Max
Min
Unit
Test Conditions/Comments
Parameter
Symbol
Max
SWITCHING SPECIFICATIONS
Pulse Width
Data Rate
Propagation Delay
Pulse Width Distortion
Change vs. Temperature
Propagation Delay Skew1
Channel Matching
Codirectional
PW
250
40
37
ns
Mbps
ns
ns
ps/°C
ns
Within PWD limit
Within PWD limit
50% input to 50% output
|tPLH − tPHL|
1
85
25
25
64
5
tPHL, tPLH
PWD
60
10
5
50
2
3
tPSK
20
10
tPSKCD
tPSKOD
25
30
2
2
2
4
7
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 5.
1 Mbps—A, C Grades
25 Mbps—C Grade
Parameter
Symbol
Min
Typ
Max
Min
Typ
Max
Unit
Test Conditions/Comments
SUPPLY CURRENT
ADuM7240
IDD1
IDD2
IDD1
IDD2
1.6
1.3
1.4
1.4
2.0
1.6
1.8
1.8
12
15
mA
mA
mA
mA
2.6
6.7
5.9
4.4
9.2
8.2
ADuM7241
Table 6. For All Models
Parameter
Symbol
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 − 0.2
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
Quiescent Input Supply Current
Quiescent Output Supply Current
Dynamic Input Supply Current
Dynamic Output Supply Current
−10
IDDI(Q)
IDDO(Q)
IDDI(D)
IDDO(D)
0.71
0.59
0.20
0.02
1.0
0.8
mA
mA
mA/Mbps
mA/Mbps
AC SPECIFICATIONS
Output Rise/Fall Time
Common-Mode Transient Immunity1
tR/tF
|CM|
2.8
25
ns
kV/µs
10% to 90%
VIx = VDDx, VCM = 1000 V,
15
transient magnitude = 800 V
Refresh Rate
fr
550
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 4 of 16