ADuM7240/ADuM7241 Data Sheet
Rev. B | Page 6 of 16
ELECTRICAL CHARACTERISTICS—MIXED 3.3 V/5 V OPERATION
All typical specifications are at T
A
= 25°C, V
DD1
= 3.3 V, V
DD2
= 5 V. Minimum/maximum specifications apply over the entire recommended
operation range of 3.0 V ≤ V
DD1
≤ 3.6 V, 4.5 V ≤ V
DD2
≤ 5.5 V, and −40°C ≤ T
A
≤ +105°C, unless otherwise noted. Switching specifications
are tested with C
L
= 15 pF and CMOS signal levels, unless otherwise noted.
Table 10.
A Grade C Grade
Parameter Symbol Min Typ Max Min Typ Max Unit Test Conditions/Comments
SWITCHING SPECIFICATIONS
Pulse Width PW 250 40 ns Within PWD limit
Data Rate 1 25 Mbps Within PWD limit
Propagation Delay t
, t
55 80 35 47 59 ns 50% input to 50% output
Pulse Width Distortion PWD 10 25 2 5 ns |t
− t
|
Change vs. Temperature 5 3 ps/°C
Propagation Delay Skew
1
t
20 10 ns
Channel Matching
Codirectional t
25 2 5 ns
Opposing Direction t
30 5 10 ns
Jitter 2 2 ns
1
t
PSK
is the magnitude of the worst-case difference in t
PHL
or t
PLH
that is measured between units at the same operating temperature, supply voltages, and output load
within the recommended operating conditions.
Table 11.
1 Mbps—A, C Grades 25 Mbps—C Grade
SUPPLY CURRENT
ADuM7240 I
1.6 2.0 12 15 mA
I
DD2
1.7 2.1 3.8 4.8 mA
I
DD2
1.9 2.3 8.2 10.2 mA
Table 12. For All Models
Parameter Symbol Min Typ Max Unit Test Conditions/Comments
DC SPECIFICATIONS
Logic High Input Threshold V
0.7 V
V
Logic Low Input Threshold V
0.3 V
V
Logic High Output Voltages V
V
− 0.1 V
V I
= −20 µA, V
= V
V
− 0.4 V
− 0.3 V I
= −4 mA, V
= V
Logic Low Output Voltages V
0.0 0.1 V I
= 20 µA, V
= V
0.2 0.4 V I
= 4 mA, V
= V
Input Current per Channel
Supply Current per Channel
Quiescent Input Supply Current I
0.71 1.0 mA
Quiescent Output Supply Current I
0.80 1.1 mA
Dynamic Input Supply Current I
0.20 mA/Mbps
Dynamic Output Supply Current I
0.03 mA/Mbps
AC SPECIFICATIONS
Output Rise/Fall Time t
/t
2.5 ns 10% to 90%
Common-Mode Transient Immunity
1
|CM| 15 25 kV/µs V
Ix
= V
DDx
, V
CM
= 1000 V,
transient magnitude = 800 V
Refresh Rate f
550 kHz DC data inputs
1
|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.