TL080, TL081, TL082, TL084, TL081A, TL082A, TL084A

TL081B, TL082B, TL084B

JFET-INPUT OPERATIONAL AMPLIFIERS

SLOS081A–D2297, FEBRUARY 1977–REVISED NOVEMBER 1992

POST OFFICE BOX 655303

POST OFFICE BOX 1443

16

TYPICAL APPLICATION DATA

–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

R1

C1

C2

R3

C3

VCC –

VCC +

TL081

Output

Input

TL081

R2

R1 = R2 = 2(R3) = 1.5 M

Ω

fo =

2

π R1 C1

1

= 1 kHz

f =

2

π RF CF

1

C1 = C2 =

= 110 pF

C3

2

Figure 24. 0.5-Hz Square-Wave Oscillator

Figure 25. High-Q Notch Filter

Input

TL084

Output C

VCC +

VCC +

Output B

TL084

VCC +

Output A

TL084

VCC +

TL084

VCC +

100 k

Ω

100

µF

1

µF

1 M

Ω

100 k

Ω

100 k

Ω

100 k

Ω

Figure 26. Audio Distribution Amplifier

88.4 k

Ω

18 pF

VCC +

VCC –

18 pF

18 pF

88.4 k

Ω

88.4 k

Ω

1N4148

1N4148

VCC –

VCC+

1 k

Ω

– 15 V

6 cos

ωt

15 V

18 k

Ω

(see Note A)

1 k

Ω

6 sin

ωt

1/2

TL082

1/2

TL082

18 k

Ω

(see Note A)

NOTE A: These resistor values may be adjusted for a symmetrical output.

Figure 27. 100-KHz Quadrature Oscillator