ADUM1400(2004) データシートの表示（PDF） - Analog Devices

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ADUM1400
(Rev.:2004)

Quad-Channel Digital Isolators

Analog Devices 

ADuM1400/ADuM1401/ADuM1402

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 on Page 20. 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 14 for total IDD1 and

IDD2 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 on Page 20 for guidance on calculating the per-channel supply current for a

given data rate.

Rev. B | Page 11 of 24

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