EL5105 データシートの表示（PDF） - Intersil

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EL5105

700MHz Slew-Enhanced VFAs

Intersil 

EL5104, EL5105, EL5204, EL5205, EL5304

Typical Performance Curves (Continued)

1K

VS=±5V

100

10

1

10

100

1k

10k

100k

FREQUENCY (Hz)

FIGURE 31. EQUIVALENT NOISE VOLTAGE vs FREQUENCY

0.5 Vs =±5V

0.4

AV=+1

RF=0

0.3 RL=500Ω

VOUT=400mV

0.2

0.1

TFALL = 860ps

0.0

TRISE=852ps

-0.1

-0.2

-0.3

-20 0 20 40 60 80 100 120 140 160 180

TIME (ns)

FIGURE 32. SMALL SIGNAL STEP RESPONSE_RISE & FALL

TIME

5

Vs =±5V

4

AV=+1

RF=0

3 RL=500Ω

VOUT=4.0VP-P

2

1

TFALL = 944ps

0

TRISE=958ps

-1

-2

-3

-20 0

20 40 60 80 100 120 140 160 180

TIME (ns)

FIGURE 33. LARGE SIGNAL STEP RESPONSE_RISE & FALL

TIME

12

AV=+1

10

RF=0

RL=500Ω

8

6

4

2

NOTE:

The curve showed positive current.

The negative current was the same.

0

1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0

SUPPLY VOLTAGE (V)

FIGURE 34. SUPPLY CURRENT vs SUPPLY VOLTAGE

5000

4500

4000

AV=+2

RF=RG=255Ω

RL=500Ω

VOUT=4VP-P

NEGATIVE SLEW RATE

3500

3000

POSITIVE SLEW RATE

2500

2000

1500

1000

2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0

SUPPLY VOLTAGES (±V)

FIGURE 35. SLEW RATE vs SUPPLY VOLTAGES

11

10

Vs =±5V

0 AV=+5

-10 RF=1600Ω

-20

RL=100Ω

CL=15pF

-30

-40

f1=4dBm

@ 0.95MHz

-50

2f1-f2=-72.7dBm

-60

@ 0.85MHz

-70

Delta IM=(4)-(-73)=77dB

IP3=4+(77/2)=42.5dBm

f2=4.1dBm

@ 1.05MHz

2f2-f1=-73dBm

@ 1.15MHz

-80

-90

-100

0.8

0.9

1.0

1.1

1.2

FREQUENCY (MHz)

FIGURE 36. THIRD ORDER IMD INTERCEPT (IP3)

FN7332.5

October 26, 2005

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