AD588TQ Analog Devices, AD588TQ Datasheet - Page 8

• Manufacturer Part Number: AD588TQ
• Description: High Precision Voltage Reference
• Manufacturer: Analog Devices

AD588
Figure 11. Power Supply Rejection vs. Frequency (A3, A4)
Figure 12a. Unity-Gain Follower Pulse Response
(Large Signal)
Figure 12b. Unity-Gain Follower Pulse Response
(Small Signal)
110
100
80
60
40
20
10
10
100
1k
FREQUENCY – Hz
–SUPPLY
+SUPPLY
10k
100k
1V p-p SINE WAVE
V
S
=
15V WITH
1M
10M
–8–
DYNAMIC PERFORMANCE
The output buffer amplifiers (A3 and A4) are designed to
provide the AD588 with static and dynamic load regulation
superior to less complete references.
Many A/D and D/A converters present transient current loads
to the reference, and poor reference response can degrade the
converter’s performance.
Figures 15a and 15b display the characteristics of the AD588
output amplifier driving a 0 mA to 10 mA load.
Figure 14. Input Noise Voltage Spectral Density
Figure 13. Common-Mode Rejection vs.
Frequency (A3, A4)
110
100
100
80
60
40
20
90
80
70
60
50
40
30
20
10
0
0
10
1
Figure 15a. Transient Load Test Circuit
100
10V
10
1k
A3 OR A4
FREQUENCY – Hz
FREQUENCY – Hz
10k
100
V
I
L
L
1k
10V
0V
V
V
100k
CM
S
V
=
OUT
= 1V p-p +25 C
15V
1k
1M
10M
10k
REV. D