Datasheet

AD8671/AD8672/AD8674 Data Sheet
Rev. F | Page 8 of 20
FREQUENCY (Hz)
OPEN-LOOP GAIN (dB)
–10
0
10
100k
03718-B-018
10M
1M
–40
–30
–
20
20
30
40
50
V
SY
=
±15V
R
L
= 10kΩ
C
L
= 20pF
F
M
= 59
°
GAIN
PHASE
OPEN-LOOP PHASE (dB)
–45
45
–180
–
135
–90
90
135
180
225
0
60
270
Figure 16. Open-Loop Gain and Phase Shift vs. Frequency
0
5000
10000
15000
20000
25000
30000
A
VO
(V/mV)
TEMPERATURE (°C)
–
40 8525 125
±5V
±15V
03718-B-019
Figure 17. Open-Loop Gain vs. Temperature
FREQUENCY (Hz)
1k 1M
CLOSED-LOOP GAIN (dB)
–10
0
10
20
40
50
100k10k 10M
03718-B-020
30
–20
–30
–40
–50
100M
A
V
= 100
A
V
= 10
A
V
= 1
V
SY
=
±
15V
V
IN
= 10mV
R
L
= ∞
C
L
= 20pF
Figure 18. Closed-Loop Gain vs. Frequency
FREQUENCY (Hz)
1k 10M
IMPEDANCE (Ω)
40
50
60
70
90
100
100k10k 100M
03718-B-021
80
30
20
10
0
A
VO
= 100
100
A
VO
= 10
A
VO
= 1
1M
Figure 19. Output Impedance vs. Frequency
V
SY
= ±15V
V
IN
= 4V
R
L
= 2kΩ
03718-B-022
VOLTAGE (1V/DIV)
TIME (100µs/DIV)
Figure 20. Large Signal Transient Response
V
SY
= ±15V
V
IN
= 200mV p-p
R
L
= 2k
Ω
03718-B-023
VOLTAGE (50mV/DIV)
TIME (10µs/DIV)
Figure 21. Small Signal Transient Response