THS4521 datasheet(14/66 Pages) TI2

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6.8 Typical Characteristics: 3-V Single Supply

at Vs+ = 3 V, Vs– = GND, Vocm is open, 50-Ω single-ended input to differential output, gain = 2 V/V, Rload = 500 Ω, and TA ≈

25°C (unless otherwise noted)

Frequency (MHz)

100

1000

-12

-9

-6

-3

D019

G=0.1

G=1

G=2

G=5

G=10

Rf = 402 Ω, Vout = 100 mVPP, see Figure 7-1 and Table 8-1

for resistor values

Figure 6-19. Small-Signal Frequency Response vs Gain

Frequency (MHz)

100

1000

-12

-9

-6

-3

D020

Vo=100 mVpp

Vo=500 mVpp

Vo=1 Vpp

Vo=2 Vpp

Vo=5 Vpp

See Figure 7-1 with VCC = 3 V and Vocm = 1.5 V

Figure 6-20. Frequency Response vs Vopp

Frequency (MHz)

100

1000

D021

Vocm=1.0 V

Vocm=1.5 V

Vocm=1.8 V

Vout = 100 mVPP, see Figure 7-1 with Vocm adjusted

Figure 6-21. Small-Signal Frequency response vs Vocm

Frequency (MHz)

100

1000

D022

RL=50 :

RL=100 :

RL=200 :

RL=500 :

RL=1000 :

Vout = 100 mVPP, see Figure 7-1 with the Rload adjusted

Figure 6-22. Small-Signal Frequency Response vs Rload

Frequency (MHz)

100

1000

D023

Cload=10 pF, Ro=27 :

Cload=22 pF, Ro=18 :

Cload=51 pF, Ro=10 :

Cload=100 pF, Ro=5.4 :

100 mVPP at load, Av = 2 (see Figure 7-11), two series Ro

added at output before Cload

Figure 6-23. Small-Signal Frequency Response vs Cload

Differential Cload (pF)

100

D024

Av=2

Av=4

Av=10

Two Ro at output to differential Cload in parallel with 500 Ω,

see Figure 7-11 and Table 8-1

Figure 6-24. Recommended Ro vs Cload

THS4541

SLOS375B – AUGUST 2014 – REVISED FEBRUARY 2024

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