THS4521 datasheet(15/51 Pages) TI

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7.8 Typical Characteristics: (VS+) – (VS–) = 3 V

at TA ≈ 25°C, VOCM pin = open, RF = 1.5 kΩ, RL = 1 kΩ, VO = 2 VPP, 50-Ω input match, G = 1 V/V, PD = VS+, single-ended

input (SE-in), differential output (diff-out), and input and output referenced to default midsupply for AC-coupled tests (unless

otherwise noted); see Figure 8-1 for a gain of 1-V/V test circuit.

Frequency (Hz)

-12

-9

-6

-3

100k

10M

100M

D037

G = 0.5 V/V

G = 1 V/V

G = 2 V/V

G = 5 V/V

G = 10 V/V

VO = 200 mVPP, see Figure 8-1 and Table 10-1 for resistor

values

Figure 7-29. Small-Signal Frequency Response vs Gain

Frequency (Hz)

-12

-9

-6

-3

100k

10M

100M

D038

VO = 0.2 VPP

VO = 1 VPP

VO = 2 VPP

See Figure 8-1

Figure 7-30. Frequency Response vs VO

Frequency (Hz)

-12

-9

-6

-3

100k

10M

100M

D039

RL = 150 :

RL = 500 :

RL = 1 k:

RL = 2 k:

RL = 10 k:

VO = 200 mVPP, see Figure 8-1 with RL adjusted

Figure 7-31. Small-Signal Frequency Response vs RL

Frequency (Hz)

0.1

100

10k

100k

D071

1/f corners: en = 9 Hz, in = 700 Hz

Figure 7-32. Input Noise Density vs Frequency

Frequency (Hz)

-150

-140

-130

-120

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

10k

100k

10M

D041

HD2, VO = 1 VPP

HD3, VO = 1 VPP

HD2, VO = 2 VPP

HD3, VO = 2 VPP

G = 1 V/V

Figure 7-33. Harmonic Distortion vs Frequency

Load Resistance, RL (:)

-140

-130

-120

-110

-100

-90

-80

-70

-60

100

D042

HD2, 100 kHz

HD3, 100 kHz

HD2, 1 MHz

HD3, 1 MHz

G = 1 V/V, VO = 4 VPP, with RL adjusted

Figure 7-34. Harmonic Distortion vs RL

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THS4561

SBOS874C – AUGUST 2017 – REVISED DECEMBER 2020

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