THS4521 datasheet(17/66 Pages) TI2

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6.9 Typical Characteristics: 3-V to 5-V Supply Range

at Vs+ = 3 V and 5 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 (Hz)

-20

-250

-200

-150

-100

100

-50

130

100

10k

100k

10M

100M

D037

Aol Gain

Aol Phase

Figure 6-37. Main Amplifier Differential Open-Loop Gain and

Phase vs Frequency

Frequency (Hz)

0.0001

0.001

0.01

0.1

10k

100k

10M

100M

D038

Gain=2, +3 V

Gain=2, +5 V

Gain=5, +3 V

Gain=5, +5 V

Single-ended input to differential output, simulated differential output

impedance, (closed-loop) gain of 2 and 5, see Figure 7-1

Figure 6-38. Closed-Loop Output Impedance

Frequency (Hz)

10k

100k

10M

D039

+5 V En

+5 V In

+3 V En

+3 V In

Figure 6-39. Input Spot Noise Over Frequency

Frequency (Hz)

-80

-75

-70

-65

-60

-55

-50

10k

100k

10M

100M

D040

+3 V supply

+5 V supply

Single-ended input to differential output, gain of 2

(see Figure 7-1), simulated with 1% resistor, worst-case mismatch

Figure 6-40. Output Balance Error Over Frequency

Frequency (Hz)

100

110

10k

100k

10M

100M

D041

Common-mode in to differential out, gain of 2 simulation

Figure 6-41. CMRR Over Frequency

Frequency (Hz)

10k

100k

10M

100M

D042

+3 V +Vs

+5 V +Vs

+3 V -Vs

+5 V -Vs

Single-ended to differential, gain of 2 (see Figure 7-1)

PSRR simulated to differential output

Figure 6-42. PSRR Over Frequency

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THS4541

SLOS375B – AUGUST 2014 – REVISED FEBRUARY 2024

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