Datasheet

Data Sheet ADR420/ADR421/ADR423/ADR425
Rev. J | Page 15 of 24
02432-034
TIME (4µs/DIV)
2V/DIV
2V/DIV
C
L
= 0.01µF
NO INPUT CAP
V
IN
V
OUT
Figure 33. ADR421 Turn-Off Response
02432-035
TIME (4µs/DIV)
2V/DIV
2V/DIV
C
L
= 0.01µF
NO INPUT CAP
V
IN
V
OUT
Figure 34. ADR421 Turn-On Response
02432-036
TIME (100µs/DIV)
2V/DIV
5V/DIV
V
IN
V
OUT
C
BYPASS
= 0.1µF
R
L
= 500Ω
C
L
= 0
Figure 35. ADR421 Turn-On/Turn-Off Response
ADR425
ADR420
ADR421
ADR423
10 100 1k 10k 100k
02432-037
FREQUENCY (Hz)
OUTPUT IMPEDANCE (Ω)
50
45
40
35
30
25
20
15
10
5
0
Figure 36. Output Impedance vs. Frequency
10 100 10k1k 100k 1M
02432-038
FREQUENCY (Hz)
RIPPLE REJECTION (dB)
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
Figure 37. Ripple Rejection vs. Frequency