SLOS081G − FEBRUARY 1977 − REVISED SEPTEMBER 2004
TL081, TL081A, TL081B, TL082, TL082A, TL082B
TL084, TL084A, TL084B
JFET INPUT OPERATIONAL AMPLIFIERS
TYPICAL CHARACTERISTICS
†
EQUIVALENT INPUT NOISE VOLTAGE
vs
FREQUENCY
50
Vn − Equilvalent Input Noise Voltage − nV/ Hz
VCC
±
=
±
15 V
AVD = 10
RS = 20
Ω
TA = 25°C
1
0.4
THD − Total Harmonic Distortion − %
VCC
±
=
±
15 V
AVD = 1
VI(RMS) = 6 V
TA = 25°C
TOTAL HARMONIC DISTORTION
vs
FREQUENCY
40
0.1
0.04
30
20
0.01
0.004
10
0
10
40
100
400 1 k
4 k 10 k
40 k 100 k
f − Frequency − Hz
0.001
10
400
1k
4k
10 k
40 k 100 k
f − Frequency − Hz
Figure 21
Figure 22
† Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.
APPLICATION INFORMATION
RF = 100 kΩ
VCC +
15 V
−
TL081
+
CF = 3.3
µF
1 kΩ
−15 V
R3
3.3 kΩ
f=
1
2π RF CF
9.1 kΩ
C1
C2
R1 = R2 = 2(R3) = 1.5 MΩ
C1 = C2 = C3 = 110 pF
2
1
fo =
= 1 kHz
2π R1 C1
3.3 kΩ
Output
Input
R1
C3
R2
TL081
+
VCC −
Output
−
Figure 23
Figure 24
14
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