Datasheet

OP97
Rev. F | Page 10 of 16
80
60
40
20
0
–20
90
135
180
225
–40
–60
10M100 1k 10k 100k 1M
FREQUENCY (Hz)
OPEN-LOOP GAIN (dB)
PHASE SHIFT (Degrees)
00299-026
T
A
= +25°C
T
A
= –55°C
T
A
= –55°C
T
A
= +125°C
T
A
= +125°C
GAIN
PHASE
V
S
= ±15V
C
L
= 20pF
R
L
= 1MΩ
100pF OVERCOMPENSATION
Figure 26. Open-Loop Gain, Phase vs. Frequency (C
OC
= 1000 pF)
80
60
40
20
0
–20
90
135
180
225
–40
–60
10M100 1k 10k 100k 1M
FREQUENCY (Hz)
OPEN-LOOP GAIN (dB)
PHASE SHIFT (Degrees)
00299-027
GAIN
PHASE
V
S
= ±15V
C
L
= 20pF
R
L
= 1MΩ
100pF OVERCOMPENSATION
T
A
= +25°C
T
A
= –55°C
T
A
= –55°C
T
A
= +125°C
T
A
= +125°C
Figure 27. Open-Loop Gain, Phase vs. Frequency (C
OC
= 10,000 pF)
1k
0.1
1
0.01
0.001
110 10k1k100 100k
00299-028
10
100
FREQUENCY (Hz)
OUTPUT IMPEDANCE (Ω)
T
A
= 25°C
V
S
=±15V
A
VCL
= 1
A
VCL
= 1000
Figure 28. Closed-Loop Output Resistance vs. Frequency