參數(shù)資料
型號: TL080CPW
廠商: Texas Instruments, Inc.
英文描述: JFET-INPUT OPERATIONAL AMPLIFIERS
中文描述: JFET輸入運算放大器
文件頁數(shù): 17/19頁
文件大小: 368K
代理商: TL080CPW
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
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 77001
17
TYPICAL APPLICATION DATA
1/4
TL084
1/4
TL084
Output B
Output A
+
1/4
TL084
1.5 k
VCC–
43 k
220 pF
43 k
VCC+
30 k
VCC+
43 k
VCC–
+
16 k
43 k
Input
220 pF
220 pF
16 k
+
VCC–
VCC+
30 k
VCC+
43 k
220 pF
43 k
VCC–
+
1/4
TL084
1.5 k
2 kHz/div
Second-Order Bandpass Filter
fo = 100 kHz, Q = 30, GAIN = 4
2 kHz/div
Cascaded Bandpass Filter
fo = 100 kHz, Q = 69, GAIN = 16
Output A
Output
B
Figure 28. Positive-Feedback Bandpass Filter
Rext
100
+
TL080
Balance
75
μ
F
50 pF
47 k
10 pF
27 k
1
μ
F
0.01
μ
F
0.00375
μ
F
220 k
VCC+
VCC–
VCC–
VCC+
TL080
+
10 pF
5 k
Gain
47
μ
F
+
0.03
μ
F
10 k
10 k
0.03
μ
F
10 k
3.3 k
0.003
μ
F
0.003
μ
F
MAX
Treble
100 k
MIN
68 k
Output
Input
100
+
MIN
100 k
Bass
MAX
Figure 29. IC Preamplifier
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