Datasheet

OP297
Rev. G | Page 7 of 16
FREQUENCY (Hz)
1k
1
11
10
10
1
CURRENT NOISE DENSITY (fA/√Hz)
100
100
1k
10 100 k
00300-017
VOLTAGE NOISE DENSITY (nV/√Hz)
CURRENT
NOISE
VOLTAGE
NOISE
T
A
= 25°C
V
S
= ±2V TO ±15V
Figure 17. Voltage Noise Density and Current Noise Density vs. Frequency
SOURCE RESISTANCE (Ω)
10
0.01
10M
1
TOTAL NOISE DENSITY (nV/√Hz)
1M100k10k1k100
0.1
10Hz
1kHz
T
A
= 25°C
V
S
= ±2V TO ±20V
00300-018
1kHz
10Hz
Figure 18. Total Noise Density vs. Source Resistance
LOAD RESISTANCE (kΩ)
OPEN-LOOP GAIN (V/mV)
10k
100
1
1k
432
51020
V
S
= ±15V
V
OUT
= ±10V
T
A
= –55°C
T
A
= +25°C
T
A
= +125°C
87659
0
0300-019
Figure 19. Open-Loop Gain vs. Load Resistance
OUTPUT VOLTAGE (V)
DIFFERENTIAL INPUT VOLTAGE (10µV/DIV)
0
–15
R
L
= 10kΩ
V
S
= ±15V
V
CM
= 0V
–10 –5 0 5 10 15
00300-020
T
A
= –55°C
T
A
= +25°C
T
A
= +125°C
Figure 20. Differential Input Voltage vs. Output Voltage
LOAD RESISTANCE (Ω)
OUTPUT SWING (V p-p)
0
5
10
15
20
25
30
35
10 100 1k 10k
T
A
= 25°C
V
S
= ±15V
A
VCL
= +1
1% THD
f
OUT
= 1kHz
00300-021
Figure 21. Output Swing vs. Load Resistance
FREQUENCY (Hz)
OUTPUT SWING (V p-p)
0
5
10
15
20
25
30
35
100 1k 10k 100k
T
A
= 25°C
V
S
= ±15V
A
VCL
= +1
1% THD
f
OUT
= 1kHz
R
L
= 10kΩ
00300-022
Figure 22. Maximum Output Swing vs. Frequency