Data Sheet
ADuM1400/ADuM1401/ADuM1402
Parameter
Symbol
Min
Typ
Max Unit Test Conditions
ADuM1400BRW/ADuM1401BRW/ADuM1402BRW
Minimum Pulse Width3
PW
100 ns
CL = 15 pF, CMOS signal levels
Maximum Data Rate4
10
20
Mbps CL = 15 pF, CMOS signal levels
Propagation Delay5
Pulse Width Distortion, |tPLH − tPHL
tPHL, tPLH
PWD
38
5
50
3
ns
ns
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
5
|
Change vs. Temperature
Propagation Delay Skew6
Channel-to-Channel Matching, Codirectional
Channels7
ps/°C CL = 15 pF, CMOS signal levels
tPSK
tPSKCD
22
3
ns
ns
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
Channel-to-Channel Matching, Opposing-
Directional Channels7
tPSKOD
6
ns
CL = 15 pF, CMOS signal levels
ADuM1400CRW/ADuM1401CRW/ADuM1402CRW
Minimum Pulse Width3
PW
8.3
120
34
0.5
3
11.1 ns
CL = 15 pF, CMOS signal levels
Maximum Data Rate4
90
20
Mbps CL = 15 pF, CMOS signal levels
Propagation Delay5
Pulse Width Distortion, |tPLH − tPHL
tPHL, tPLH
PWD
45
2
ns
ns
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
5
|
Change vs. Temperature
Propagation Delay Skew6
Channel-to-Channel Matching, Codirectional
Channels7
ps/°C CL = 15 pF, CMOS signal levels
tPSK
tPSKCD
16
2
ns
ns
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
Channel-to-Channel Matching, Opposing-
Directional Channels7
tPSKOD
5
ns
CL = 15 pF, CMOS signal levels
For All Models
Output Disable Propagation Delay (High/Low to tPHZ, tPLH
High Impedance)
6
6
8
8
ns
ns
ns
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
Output Enable Propagation Delay (High
Impedance to High/Low)
tPZH, tPZL
Output Rise/Fall Time (10% to 90%)
tR/tF
3
Common-Mode Transient Immunity at Logic
High Output8
Common-Mode Transient Immunity at Logic
Low Output8
|CMH|
25
25
35
kV/µs VIx = VDD1 or VDD2, VCM = 1000 V,
transient magnitude = 800 V
kV/µs VIx = 0 V, VCM = 1000 V,
transient magnitude = 800 V
|CML|
35
Refresh Rate
Input Dynamic Supply Current per Channel9
fr
1.1
0.10
Mbps
mA/
IDDI (D)
Mbps
mA/
Output Dynamic Supply Current per Channel9
IDDO (D)
0.03
Mbps
1 All voltages are relative to their respective ground.
2 The supply current values for all four channels are combined when running at identical data rates. Output supply current values are specified with no output load
present. The supply current associated with an individual channel operating at a given data rate may be calculated as described in the Power Consumption section.
See Figure 8 through Figure 10 for information on per-channel supply current as a function of data rate for unloaded and loaded conditions. See Figure 11 through
Figure 15 for total VDD1 and VDD2 supply currents as a function of data rate for ADuM1400/ADuM1401/ADuM1402 channel configurations.
3 The minimum pulse width is the shortest pulse width at which the specified pulse width distortion is guaranteed.
4 The maximum data rate is the fastest data rate at which the specified pulse width distortion is guaranteed.
5 tPHL propagation delay is measured from the 50% level of the falling edge of the VIx signal to the 50% level of the falling edge of the VOx signal. tPLH propagation delay is
measured from the 50% level of the rising edge of the VIx signal to the 50% level of the rising edge of the VOx signal.
6 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.
7 Codirectional channel-to-channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on the same side of
the isolation barrier. Opposing-directional channel-to-channel matching is the absolute value of the difference in propagation delays between any two channels with
inputs on opposing sides of the isolation barrier.
8 CMH is the maximum common-mode voltage slew rate that can be sustained while maintaining VO > 0.8 VDD2. CML is the maximum common-mode voltage slew rate
that can be sustained while maintaining VO < 0.8 V. The common-mode voltage slew rates apply to both rising and falling common-mode voltage edges. The transient
magnitude is the range over which the common mode is slewed.
9 Dynamic supply current is the incremental amount of supply current required for a 1 Mbps increase in signal data rate. See Figure 8 through Figure 10 for information
on per-channel supply current for unloaded and loaded conditions. See the Power Consumption section for guidance on calculating the per-channel supply current
for a given data rate.
Rev. L | Page 7 of 31
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