7

7 - 4

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Sampling Transfer Function

Hold-Mode SFDR vs. Frequency

& Input Power @ f

Hold-Mode SFDR vs. Frequency & Input

Power @ f

[1] [2]

[1] FS = Full-Scale input level, HFS = Half-Full-Scale input level

[2] The measurement dynamic range for half-full-scale and full-scale inputs is about 68 dB and 74 dB, respectively, due to measurement noise floor

limitations. Hence the measured spurious products tend to limit at these levels.

Hold-Mode SFDR vs. Frequency

& Input Power @ f

HMC1061LC5

v01.0613

DC - 18 GHz, ULTRA-WIDEBAND, DUAL RANK

4 GS/s TRACK-AND-HOLD AMPLIFIER

Time Domain Output Waveform

@ f

Time Domain Output Waveform

@ f

-9

-8

-7

-6

-5

-4

-3

-2

-1

0

1

0

4000

8000

12000

16000

20000

FREQUENCY(MHz)

3rd Order Polynomial Fit

Sampling Transfer Function

30

40

50

60

70

80

02468

10

12

2nd FS SFDR

3rd FS SFDR

2nd HFS SFDR

3rd HFS SFDR

FREQUENCY (GHz)

30

40

50

60

70

80

02468

10

12

2nd FS SFDR

3rd FS SFDR

2nd HFS SFDR

3rd HFS SFDR

FREQUENCY (GHz)

30

40

50

60

70

80

02468

10

12

2nd FS SFDR

3rd FS SFDR

2nd HFS SFDR

3rd HFS SFDR

FREQUENCY (GHz)

-1

-0.8

-0.6

-0.4

-0.2

0

0.2

0.4

0.6

0.8

1

02

46

8

10

TIME (ns)

-1

-0.8

-0.6

-0.4

-0.2

0

0.2

0.4

0.6

0.8

1

02

46

8

10

TIME (ns)

Track&Hold Mode

Track Mode