CA3140M96 データシートの表示（PDF） - Intersil

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CA3140M96

4.5MHz, BiMOS operational amplifier with MOSFET input/bipolar output

Intersil 

CA3140, CA3140A

CENTERING

7.5kΩ

+15V

+15V

HIGH

-15V 10kΩ

FREQUENCY

+15V

360Ω

360Ω

2MΩ

SYMMETRY

-15V

3+

7

15kΩ

CA3080A 6

2-

4

7-60

pF

5

HIGH

-15V FREQ.

+15V

SHAPE

100kΩ

0.1 LEVEL

910kΩ

7

µF

7-60pF

3+

51

CA3140 6

pF 2 -

11kΩ

4

10kΩ 11kΩ

-15V

2kΩ

0.1

µF

EXTERNAL

OUTPUT

62kΩ

5

7

2-

CA3080 6

3+

4

13kΩ

-15V

10kΩ

EXTERNAL

OUTPUT

2.7kΩ

TO OUTPUT

AMPLIFIER

FROM BUFFER METER

DRIVER (OPTIONAL)

39kΩ

120Ω 10kΩ

FREQUENCY

ADJUSTMENT

5.1kΩ TO

SINE WAVE

-15V

+15V

OUTPUT

SHAPER

1N914

THIS NETWORK IS USED WHEN THE

AMPLIFIER

OPTIONAL BUFFER CIRCUIT IS NOT USED

FIGURE 10A. CIRCUIT

Top Trace: Output at junction of 2.7Ω and 51Ω resistors;

5V/Div., 500ms/Div.

Center Trace: External output of triangular function generator;

2V/Div., 500ms/Div.

Bottom Trace: Output of “Log” generator; 10V/Div., 500ms/Div.

FIGURE 10B. FIGURE FUNCTION GENERATOR SWEEPING

FREQUENCY

ADJUSTMENT

METER DRIVER

AND BUFFER

AMPLIFIER M

FUNCTION

GENERATOR

SINE WAVE

SHAPER

POWER

SUPPLY ±15V

+15V

-15V

WIDEBAND

LINE DRIVER

51Ω

FINE

RATE

SWEEP

GENERATOR

GATE DC LEVEL

SWEEP ADJUST

COARSE

RATE

OFF INT.

V- EXT.

EXTERNAL

INPUT

1V/Div., 1s/Div.

Three tone test signals, highest frequency ≥0.5MHz. Note the slight

asymmetry at the three second/cycle signal. This asymmetry is due to

slightly different positive and negative integration from the CA3080A

and from the PC board and component leakages at the 100pA level.

SWEEP

LENGTH

V-

FIGURE 10C. FUNCTION GENERATOR WITH FIXED

FREQUENCIES

FIGURE 10D. INTERCONNECTIONS

FIGURE 10. FUNCTION GENERATOR

10

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