CA3140 Ver la hoja de datos (PDF) - Intersil

Número de pieza

componentes Descripción

Fabricante

CA3140

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

Intersil 

CA3140, CA3140A

500kΩ

FREQUENCY

ADJUSTMENT

10kΩ

SWEEP IN

FREQUENCY

CALIBRATION

MAXIMUM

620kΩ

51kΩ

7

3+

3MΩ

CA3140

2-

4

6

4.7kΩ

TO CA3080A

OF FUNCTION CA3080A

GENERATOR

(FIGURE 10)

4

5

2kΩ

0.1µF

+15V

12kΩ

FREQUENCY 2.4kΩ

CALIBRATION

MINIMUM 2.5

kΩ

METER

SENSITIVITY

ADJUSTMENT

11

620Ω

1kΩ

M

200µA

METER

510Ω

9

510Ω

8

10 14

2kΩ

6

METER

7 POSITION

ADJUSTMENT

12

3.6kΩ 13

3/5 OF CA3086

-15V

FIGURE 11. METER DRIVER AND BUFFER AMPLIFIER

+15V

-15V

5.1kΩ

+15V

100 1MΩ

kΩ

9.1kΩ

-15V

R1

10kΩ

0.1µF

3+

7

5.6kΩ

7.5kΩ

CA3140 6

2-

TO

4 SUBSTRATE WIDEBAND

OF CA3019 OUTPUT

0.1µF

7

AMPLIFIER

-15V

10kΩ

R3 10kΩ

EXTERNAL

OUTPUT

D1

D4

65 82

D3 D6 D2

9

1

3

4

CA3019 D5

DIODE ARRAY

430Ω

R2

1kΩ

FIGURE 12. SINE WAVE SHAPER

750kΩ

“LOG”

SAWTOOTH 18MΩ

100kΩ

1N914

1MΩ

22MΩ

100kΩ

FINE

RATE

1N914

0.47µF

0.047µF

4700pF

SAWTOOTH 8.2kΩ

SYMMETRY

COARSE

RATE

+15V

SAWTOOTH AND

RAMP LOW LEVEL

SET (-14.5V)

50kΩ

470pF

2

3

+15V

0.1

-

7

µF

CA3140 6

+4

0.1

µF

-15V

43kΩ

SAWTOOTH

75kΩ

51kΩ

50kΩ

LOG

RATE

ADJUST

“LOG”+15V

+15V

TRIANGLE

36kΩ

3- 7

100kΩ

30kΩ

TO OUTPUT 2

AMPLIFIER

CA3140 6

+4

-15V

10kΩ

EXTERNAL OUTPUT

10kΩ

10kΩ

TO FUNCTION GENERATOR “SWEEP IN”

SWEEP WIDTH

-15V

7

3+

+15V

CA3140 6

2-

4

LOGVIO

5

1

25kΩ

3.9Ω

100Ω

-15V

390Ω

51kΩ

6.8kΩ 91kΩ

10kΩ

5

4

1

TRANSISTORS

2

FROM CA3086

ARRAY

3

TRIANGLE

SAWTOOTH

“LOG”

GATE

PULSE

OUTPUT

FIGURE 13. SWEEPING GENERATOR

11

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