HFA1245 datasheet(11/14 Pages) INTERSIL

Part #	HFA1245

Description	Dual, 420MHz, Low Power, Video, Current Feedback Operational Amplifier with Disable

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Manufacturer	INTERSIL [Intersil Corporation]

Direct Link	http://www.intersil.com/cda/home

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11

FIGURE 28. GAIN FLATNESS

FIGURE 29. CROSSTALK (PASSIVE CHANNEL ENABLED)

FIGURE 30. CROSSTALK (PASSIVE CHANNEL DISABLED)

FIGURE 31. ALL HOSTILE OFF ISOLATION

FIGURE 32. REVERSE ISOLATION

FIGURE 33. ENABLED OUTPUT RESISTANCE

Typical Performance Curves VSUPPLY = ±5V, TA = 25oC, RF = Value From the Optimum Feedback Resistor Table, RL = 100Ω,

Unless Otherwise Speciﬁed (Continued)

FREQUENCY (MHz)

1

10

100

0.4

0.3

0.2

0.1

0

-0.1

-0.2

-0.3

-0.4

VOUT = 200mVP-P

AV = +2, CH2

AV = -1

AV = +2, CH1

AV = +1, CH2

AV = +1, CH1

BOTH CHANNELS SHOWN

FREQUENCY (MHz)

-20

-30

-40

-50

-60

-70

-80

-90

-100

0.3

1

10

100

1000

AV = +2, VIN = 1VP-P

FREQUENCY (MHz)

-20

-30

-40

-50

-60

-70

-80

-90

-100

0.3

1

10

100

1000

AV = +2, VIN = 1VP-P

FREQUENCY (MHz)

20

30

40

50

60

70

80

90

100

0.3

1

10

100

1000

AV = +2, VIN = 1VP-P

DIS1 = DIS2 = 0V

FREQUENCY (MHz)

1

10

100

1000

10

20

30

40

50

60

70

80

90

100

AV = +2

AV = -1

AV = +1

1K

100

10

1

0.1

0.01

0.3

1

10

100

FREQUENCY (MHz)

1000

AV = +2

HFA1245

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