AD1582A(RevM) データシートの表示（PDF） - Analog Devices
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AD1582A Datasheet PDF : 17 Pages
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Data Sheet
0V OR 10V 10kΩ
0V TO 10V 10kΩ
0.22µF
DUT
5V OR 10V
0V OR 5V
VOUT
0.22µF
Figure 22. Turn-On/Transient Response Test Circuit
5V
100
90
20µs
AD1582/AD1583/AD1584/AD1585
Figure 26 and Figure 27 show the load transient settling cha-
racteristics for the AD1582/AD1583/AD1584/AD1585 when
load current steps of 0 mA to +5 mA and 0 mA to −1 mA are
applied. The input supply voltage remains constant at 5 V; the
input decoupling and output load capacitors are 4.7 μF and 1 μF,
respectively; and the output current is toggled. For both positive
and negative current loads, the reference responses settle very
quickly and exhibit initial voltage spikes of less than 10 mV.
5V
100
90
50µs
10
0%
1V
20µs
Figure 23. Turn-On Characteristics
5V
100
90
20µs
10
0%
200mV
50µs
Figure 25. Line Transient Response
5V
100
90
20µs
10
0%
1mV
20µs
Figure 24. Turn-On Settling
DYNAMIC PERFORMANCE
Many ADCs and DACs present transient current loads to the
reference and poor reference response can degrade converter
performance. The AD1582/AD1583/AD1584/AD1585 provide
superior static and dynamic line and load regulation. Because
these series references are capable of both sourcing and sinking
large current loads, they exhibit excellent settling characteristics.
Figure 25 displays the line transient response for the AD1582/
AD1583/AD1584/AD1585. The circuit used to perform such
a measurement is shown in Figure 22, where the input supply
voltage is toggled from 5 V to 10 V, and the input and output
capacitors are each 0.22 μF.
10
0%
5mV
20µs
Figure 26. Load Transient Response (0 mA to 5 mA Load)
5V
100
90
20µs
10
0%
5mV
20µs
Figure 27. Load Transient Response (0 mA to −1 mA Load)
Rev. M | Page 15 of 17
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