Datasheet

     
  
  
SLOS081G − FEBRUARY 1977 − REVISED SEPTEMBER 2004
14
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
†
Figure 21
10
0
− Equilvalent Input Noise Voltage −
f − Frequency − Hz
100 k
50
10
20
30
40
V
CC±
= ±15 V
A
VD
= 10
R
S
= 20 Ω
T
A
= 25°C
40 100 400 1 k 4 k 10 k 40 k
EQUIVALENT INPUT NOISE VOLTAGE
vs
FREQUENCY
V
n
nV/ Hz
Figure 22
0.001
THD − Total Harmonic Distortion − %
1
V
CC±
= ±15 V
A
VD
= 1
V
I(RMS)
= 6 V
T
A
= 25°C
40 k10 k4 k1 k400 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 kΩ
9.1 kΩ
3.3 kΩ
C
F
= 3.3 µF
R
F
= 100 kΩ
3.3 kΩ
TL081
f =
2π R
F
C
F
1
Figure 24
+
−
R1
C1 C2
R3
C3
V
CC−
V
CC+
TL081
OutputInput
R2
R1 = R2 = 2(R3) = 1.5 MΩ
f
o
=
2π R1 C1
1
= 1 kHz
C1 = C2 = = 110 pF
C3
2