Datasheet

OP27 Data Sheet
Rev. H | Page 12 of 21
10
0
5
TIME FROM OUTPUT SHORTED TO GROUND (Min)
SHORT-CIRCUIT CURRENT (mA)
60
50
40
30
20
1 2 3 4
T
A
= 25qC
V
S
= 15V
I
SC
(–)
I
SC
(+)
00317-028
Figure 28. Short-Circuit Current vs. Time
60
100
1M
FREQUENCY (Hz)
CMRR (dB)
140
120
100
80
1k 10k 100k
V
S
= r15V
T
A
= 25qC
V
CM
= r10V
00317-029
Figure 29. CMRR vs. Frequency
16
–16
0
r20
SUPPLY VOLTAGE (V)
COMMON-MODE RANGE (V)
T
A
=
–55qC
T
A
= +125qC
T
A
= –55qC
T
A
= +125qC
T
A
= +25qC
T
A
= +25qC
12
8
4
0
–4
–8
–12
r5 r10 r15
00317-030
Figure 30. Common-Mode Input Range vs. Supply Voltage
AD8677
OP27
D.U.T.
N
N
4.7mF
N
N
VOLTAGE
GAIN
= 50,000
2.2mF
22mF
N
SCOPE ´ 1
R
IN
 0
0.1mF

N
0.1mF
00317-031
Figure 31. Voltage Noise Test Circuit (0.1 Hz to 10 Hz)
2.4
0.4
100 1k 10k
100k
LOAD RESISTANCE (:)
OPEN-LOOP VOLTAGE GAIN (V/PV)
T
A
= 25qC
V
S
= r15V
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
00317-032
Figure 32. Open-Loop Voltage Gain vs. Load Resistance
–90
–120
VOLTAGE NOISE (nV)
1 SEC/DIV
120
80
0
40
–40
0.1Hz TO 10Hz p-p NOISE
00317-033
Figure 33. Low Frequency Noise