OP37
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.1ꢂF
T
V
= 25ꢁC
= ꢀ15V
A
1 SEC/DIV
S
100kꢃ
OP37
10ꢃ
D.U.T.
2kꢃ
VOLTAGE
GAIN
= 50,000
22ꢂF
4.3kꢃ
2.2ꢂF
OP12
100kꢃ
SCOPE ꢅ 1
= 1Mꢃ
4.7ꢂF
R
IN
110kꢃ
0.6
0.4
0.1ꢂF
24.3kꢃ
100
1k
10k
100k
LOAD RESISTANCE – ꢃ
TPC 28. Noise Test Circuit (0.1 Hz to
10 Hz)
TPC 29. Low-Frequency Noise
TPC 30. Open-Loop Voltage Gain vs.
Load Resistance
160
19
18
17
20
T
= 25ꢁC
A
T
V
A
V
= 25ꢁC
= ꢀ15V
= 5
T = 25ꢁC
A
A
140
RISE
FALL
A
= 5
S
VCL
V
120
100
80
60
40
20
0
15
10
5
= 20V p-p
O
NEGATIVE
SWING
POSITIVE
SWING
16
15
0
ꢀ3
1
10 100 1k 10k 100k 1M 10M 100M
100
1k
10k
100k
ꢀ6
ꢀ9
ꢀ12
ꢀ15
ꢀ18
ꢀ21
FREQUENCY – Hz
LOAD RESISTANCE – ꢃ
SUPPLYVOLTAGE – Volts
TPC 31. PSRP vs. Frequency
TPC 32. Slew Rate vs. Load
TPC 33. Slew Rate vs. Supply Voltage
–10–
REV. A
ADI [ ADI ]
