TL081, TL081A, TL081B, TL082, TL082A, TL082B

TL084, TL084A, TL084B

JFET INPUT OPERATIONAL AMPLIFIERS

SLOS081G − FEBRUARY 1977 − REVISED SEPTEMBER 2004

14

POST OFFICE BOX 655303

Figure 21

10

0

f − Frequency − Hz

100 k

50

10

20

30

40

VCC ± = ±15 V

AVD = 10

RS = 20 Ω

TA = 25°C

40

100

400 1 k

4 k 10 k

40 k

EQUIVALENT INPUT NOISE VOLTAGE

vs

FREQUENCY

Figure 22

0.001

1

VCC ± = ±15 V

AVD = 1

VI(RMS) = 6 V

TA = 25°C

40 k

10 k

4 k

1 k

400

100 k

f − Frequency − Hz

10

0.004

0.01

0.04

0.1

0.4

TOTAL HARMONIC DISTORTION

vs

FREQUENCY

† Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.

APPLICATION INFORMATION

Figure 23

−15 V

15 V

Output

1 k

Ω

9.1 k

Ω

3.3 k

Ω

CF = 3.3 µF

RF = 100 kΩ

3.3 k

Ω

TL081

f =

2

π RF CF

1

Figure 24

R1

C1

C2

R3

C3

VCC −

VCC +

TL081

Output

Input

R2

R1 = R2 = 2(R3) = 1.5 M

Ω

fo =

2

π R1 C1

1

= 1 kHz

C1 = C2 =

= 110 pF

C3

2