THS4121CDGKG4 datasheet(5/30 Pages) TI1

Part #	THS4121CDGKG4

Description	HIGH-SPEED FULLY DIFFERENTIAL I/O AMPLIFIERS

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−1.5

−1

−0.5

0

0.5

1

1.5

0

20

40

60

80

t − Time − ns

VDD = 3.3 V,

VO = 2 VPP,

TA= 25°C

G = 1

RL = 800 Ω

Rising Edge

Falling Edge

−4

−2

−1

0

1

2

100 k

1M

10 M

100 M

1G

G = 1

VI = 22.5 mVRMS

VDD = 3.3 V

Rf = 270 Ω

Rf = 200 Ω

f − Frequency − Hz

Rf = 390 Ω

Rf = 150 Ω

−3

VO − Output Voltage − V

−90

−80

−70

−60

−50

0

1

2

3

4

5

VDD = 3.3 V,

f = 1 MHz

Rf = 200 Ω,

RL = 800 Ω

Differential Input /

Differential Output

Single Input /

Differential Output

−80

−70

−60

−50

−40

−30

−20

100 k

1 M

10 M

f − Frequency − Hz

Differential Input/

Differential Output

Single−Ended Input /

Differential Output

VDD = 3.3 V,

VO = 4 VPP

Rf = 200 Ω,

RL = 800 Ω

G = 1

THS4120

THS4121

SLOS319D – FEBRUARY 2001 – REVISED OCTOBER 2004

TYPICAL CHARACTERISTICS (continued)

FIGURE

zo

Single-ended (VOCM) input impedance

vs Frequency

17

SMALL-SIGNAL FREQUENCY RESPONSE

SLEW RATE

Figure 1.

Figure 2.

TOTAL HARMONIC DISTORTION

vs

FREQUENCY

OUTPUT VOLTAGE

Figure 3.

Figure 4.

5

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