CA3100 데이터 시트보기 (PDF) - Intersil

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CA3100

38MHz, Operational Amplifier

Intersil 

CA3100

Typical Applications

+15V

INPUT 0.33µF

3kΩ

7

3

+

CA3100

2

-

4

-15V

0.1µF

6

OUTPUT

0.1µF

220Ω

2kΩ

3pF

-3dB BANDWIDTH ≈ 20MHz

TOTAL INPUT NOISE

VOLTAGE REFERRED TO

INPUT ≈ 35µVRMS

FIGURE 7. 20dB VIDEO AMPLIFIER

+15V

VI(AC)

3

3kΩ

2

7

+

CA3100

-

4

0.1µF

6

1N914

2N2102

VO (DC) =

+VI PEAK

1.2kΩ

0.1µF

1000pF

-15V

FIGURE 9. FAST POSITIVE PEAK DETECTOR

+15V

3dB BANDWIDTH = 15MHz

ACL = 20dB

0.1µF

4.7

kΩ

INPUT

7

0.33µF

3kΩ

3

220Ω

2

+

CA3100

-

6 10Ω

4 1N5393

10Ω

2N5320

OUTPUT TO

TERMINATED

50Ω TRANS-

MISSION LINE

3pF

DELIVERS FOLLOWING

PEAK VOLTAGES TO

50Ω LINE:

FREQ VO

1MHz 8V

220Ω

2MHz 5V

4MHz 2V GAIN = 20dB

6MHz 1V

-15V

2kΩ

0.1µF

2N5322

FIGURE 8. 20dB VIDEO LINE DRIVER

ZERO ADJ

200Ω

20kΩ

+15V

10pF

INPUT

IMPEDANCE

≈ 50kΩ

TEST

LEADS

51kΩ

3

2

1

7

8

0.1µF

1VRMS

FULL SCALE

+

CA3100

-

4

-15V

6

51kΩ

0.1

µF

250Ω POT.

1N914

+

-

330Ω

1mA

FULL

SCALE

DC

METER

FULL SCALE

CALIBRATION

ADJUST

FIGURE 10. 1MHz METER-DRIVER AMPLIFIER

Typical Performance Curves

80

70

60

50

40

30

20

10

0

0.001

|AOL|

TA = 25oC

VS = ±15V

RL = 2kΩ

CL = 20pF

CC = 24pF

CC = 24pF

0pF

12pF

12pF

0pF

θ

12pF -270

-225

0pF

-180

-135

24pF -90

-45

0

0.01

0.1

1

10

100

FREQUENCY (MHz)

FIGURE 11. OPEN LOOP GAIN, OPEN LOOP PHASE SHIFT vs

FREQUENCY

70

VS = ±15V

RL = 2kΩ

60

CC = 0

50

TA = -55oC

40

30

25oC

20

125oC

10

0

0.001

0.01

0.1

1

10

100

FREQUENCY (MHz)

FIGURE 12. OPEN LOOP GAIN vs FREQUENCY

3-5

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