Datasheet

ADR121/ADR125/ADR127
Rev. B | Page 14 of 20
05725-048
1
2
V
OUT
100mV/DIV
TIME (40µs/DIV)
2.5V
0V
V
IN
1V/DIV
C
IN
= C
OUT
= 0.1µF
500Ω LOAD
5mA SOURCING
Figure 44. ADR121 Load Transient Response (Sourcing)
05725-049
1
2
V
OUT
20mV/DIV
TIME (40µs/DIV)
10V
5V
V
IN
2V/DIV
C
IN
= C
OUT
= 0.1µF
2.5kΩ LOAD
2mA SINKING
Figure 45. ADR125 Load Transient Response (Sinking)
05725-050
1
2
V
OUT
100mV/DIV
TIME (40µs/DIV)
5V
0V
V
IN
2V/DIV
C
IN
= C
OUT
= 0.1µF
1kΩ LOAD
5mA SOURCING
Figure 46. ADR125 Load Transient Response (Sourcing)
0
–20
–40
–60
–80
–100
–120
–140
–160
–180
–200
10 100M
(dB)
05725-051
100 1k 10k 100k 1M 10M
1
Figure 47. ADR121/ADR125/ADR127 PSRR
10
OUTPUT IMPEDANCE (Ω)
0
5725-054
100
FREQUENCY (Hz)
1k 10k 100k
1
ADR121
ADR125
ADR127
50
45
40
35
30
25
20
15
10
5
0
Figure 48. ADR121/ADR125/ADR127 Output Impedance vs. Frequency