OP1177/OP2177/OP4177
120
100
80
CLOSED-LOOP GAIN (dB)
V
SY
= ±15V
V
IN
= 4mV p-p
C
L
= 0
R
L
=
∞
A
V
= 100
A
V
= 10
VOLTAGE (100mV/DIV)
60
40
20
0
–20
–40
–60
1k
10k
100k
1M
FREQUENCY (Hz)
10M
100M
02627-013
V
SY
= ±15V
C
L
= 1,000pF
R
L
= 2kΩ
V
IN
= 100mV
A
V
= 1
A
V
= 1
GND
–80
TIME (100µs/DIV)
Figure 13. Closed-Loop Gain vs. Frequency
Figure 16. Small Signal Transient Response
500
450
400
OUTPUT IMPEDANCE (Ω)
50
V
SY
= ±15V
V
IN
= 50mV p-p
45
SMALL SIGNAL OVERSHOOT (%)
40
35
30
25
20
15
10
5
V
SY
= ±15V
R
L
= 2kΩ
V
IN
= 100mV p-p
350
300
250
200
150
100
50
02627-014
A
V
= 10
A
V
= 100
A
V
= 1
+OS
–OS
1k
10k
100k
FREQUENCY (Hz)
1M
1
10
100
CAPACITANCE (pF)
1k
10k
Figure 14. Output Impedance vs. Frequency
Figure 17. Small Signal Overshoot vs. Load Capacitance
V
SY
= ±15V
C
L
= 300pF
R
L
= 2kΩ
V
IN
= 4V
A
V
= 1
0V
–15V
V
SY
= ±15V
R
L
= 10kΩ
A
V
= –100
V
IN
= 200mV
OUTPUT
VOLTAGE (1V/DIV)
+200mV
GND
INPUT
0V
02627-018
02627-015
TIME (100µs/DIV)
TIME (10µs/DIV)
Figure 15. Large Signal Transient Response
Figure 18. Positive Overvoltage Recovery
Rev. E | Page 7 of 24
02627-017
0
100
0
02627-016
AD [ ANALOG DEVICES ]
