OP27
60
T
A
= 25°C
V
S
= 15V
0.1
μ
F
100k
Ω
SHORT-CIRCUIT CURRENT (mA)
50
40
I
SC
(+)
10
Ω
D.U.T.
OP27
30
I
SC
(–)
20
2k
Ω
4.3k
Ω
22
μ
F
SCOPE
×
1
R
IN
= 1M
Ω
110k
Ω
VOLTAGE
GAIN
= 50,000
4.7
μ
F
OP12
100k
Ω
0
1
2
3
4
5
TIME FROM OUTPUT SHORTED TO GROUND (Min)
Figure 28. Short-Circuit Current vs. Time
2.4
00317-028
Figure 31. Voltage Noise Test Circuit (0.1 Hz to 10 Hz)
140
OPEN-LOOP VOLTAGE GAIN (V/μV)
V
S
=
±15V
T
A
= 25°C
V
CM
=
±10V
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
T
A
= 25°C
V
S
=
±15V
120
CMRR (dB)
100
80
1k
10k
FREQUENCY (Hz)
100k
1M
00317-029
1k
10k
100k
LOAD RESISTANCE (Ω)
Figure 29. CMRR vs. Frequency
16
T
A
= –55°C
12
T
A
= +25°C
T
A
= +125°C
4
0
–4
–8
–12
–16
T
A
= +125°C
T
A
= –55°C
T
A
= +25°C
Figure 32. Open-Loop Voltage Gain vs. Load Resistance
1 SEC/DIV
120
80
40
0
–40
–90
–120
COMMON-MODE RANGE (V)
8
VOLTAGE NOISE (nV)
0
±5
±10
SUPPLY VOLTAGE (V)
±15
±20
00317-030
0.1Hz TO 10Hz p-p NOISE
Figure 30. Common-Mode Input Range vs. Supply Voltage
Figure 33. Low Frequency Noise
Rev. F | Page 12 of 20
00317-033
00317-032
60
100
0.4
100
00317-031
10
0.1
μ
F 2.2
μ
F
24.3k
Ω
AD [ ANALOG DEVICES ]
