TL081_04 Datasheet, PDF (14/37 Pages) Texas Instruments – JFET-INPUT OPERATIONAL AMPLIFIERS

TL081, TL081A, TL081B, TL082, TL082A, TL082B
TL084, TL084A, TL084B
JFETĆINPUT OPERATIONAL AMPLIFIERS
SLOS081G − FEBRUARY 1977 − REVISED SEPTEMBER 2004
TYPICAL CHARACTERISTICS^†
EQUIVALENT INPUT NOISE VOLTAGE
vs
FREQUENCY
50
VCC _± = ± 15 V
AVD = 10
RS = 20 Ω
40
TA = 25°C
30
TOTAL HARMONIC DISTORTION
vs
FREQUENCY
1
VCC _± = ± 15 V
0.4 ^{AVD = 1}
VI(RMS) = 6 V
TA = 25°C
0.1
0.04
20
0.01
10
0.004
0
10
40 100 400 1 k 4 k 10 k
f − Frequency − Hz
40 k 100 k
0.001
10
400 1 k
4 k 10 k
f − Frequency − Hz
40 k 100 k
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
3.3 kΩ
15 V
CF = 3.3 µF
TL081
−15 V
1
f=
2π RF CF
3.3 kΩ
Figure 23
Output
1 kΩ
9.1 kΩ
Input
VCC ₊
R1
R2
TL081
C3
VCC _−
Output
R3
C1
C2
R1 = R2 = 2(R3) = 1.5 MΩ
C1 = C2 = ^C3 = 110 pF
2
1
fo = _{2π R1 C1} = 1 kHz
Figure 24
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