AD1582/AD1583/AD1584/AD1585
5V
100
90
Data Sheet
5V
100
90
20µs
50µs
10
0%
00701-022
10
0%
1V
20µs
200mV
50µs
Figure 22. Turn-On Characteristics
5V
100
90
Figure 24. Line Transient Response
20µs
20µs
100
90
5V
10
0%
00701-023
10
0%
1mV
20µs
5mV
20µs
Figure 23. Turn-On Settling
Figure 25. Load Transient Response (0 mA to 5 mA Load)
5V
100
90
DYNAMIC PERFORMANCE
Many ADCs and DACs present transient current loads to the
reference and poor reference response can degrade converter
performance. The
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 charac-
teristics.
The circuit used to perform such
a measurement is shown in Figure 21, where the input supply
voltage is toggled from 5 V to 10 V, and the input and output
capacitors are each 0.22 μF.
racteristics for the
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.
20µs
10
0%
5mV
20µs
Figure 26. Load Transient Response (0 mA to −1 mA Load)
Rev. J | Page 14 of 16
00701-026
00701-025
00701-024
AD [ ANALOG DEVICES ]
