REF19x Series
REF19x
0
–20
RIPPLE REJECTION (dB)
V
IN
= 15V
2
6
4
1µF
0
–40
–60
–80
–100
–120
00371-009
Figure 13. Load Transient Response Measurement Circuit
2V
100%
90%
10
100
1k
10k
FREQUENCY (Hz)
100k
1M
Figure 9. Ripple Rejection vs. Frequency
10µF
1mA
LOAD
10%
30mA
LOAD
REF
Figure 10. Ripple Rejection vs. Frequency Measurement Circuit
00371-010
10µF
4
1µF
1kΩ
2V
100µs
Figure 14. Power-On Response Time
V
IN
= 7V
REF19x
2
4
6
200V
V
G
= 2V p-p
1µF
Z
V
S
= 4V
2
REF19x
6
1µF
1µF
Figure 15. Power-On Response Time Measurement Circuit
Z
O
(Ω)
4
3
2
1
10
100
1k
10k
100k
FREQUENCY (Hz)
1M
10M
00371-011
5V
ON
100%
OFF
90%
0
Figure 11. Output Impedance vs. Frequency
V
OUT
I
L
= 10mA
I
L
= 1mA
5V
OFF
100%
ON
90%
10%
0%
00371-016
1V
2ms
Figure 16. SLEEP Response Time
V
IN
= 15V
REF19x
2
6
3
4
V
OUT
00371-017
10%
0%
20mV
100µs
00371-012
1µF
Figure 12. Load Transient Response
Figure 17. SLEEP Response Time Measurement Circuit
Rev. I | Page 17 of 28
00371-015
V
IN
= 7V
4
00371-014
V
IN
= 15V
1kΩ
REF19x
2
6
10µF
OUTPUT
0%
00371-013
10mA
AD [ ANALOG DEVICES ]
