ADS902 datasheet(5/12 Pages) TI1

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ADS902

SBAS063A

SPECTRAL PERFORMANCE

Frequency (MHz)

–20

–40

–60

–80

–100

–120

2.5

5.0

7.5

12.5

10.0

15.0

IN = 12.5MHz

2Vp-p

UNDERSAMPLING

Frequency (MHz)

–20

–40

–60

–80

–100

–120

2.8

5.6

8.4

11.2

14.0

IN = 40MHz

S = 28MHz

IN = 1Vp-p

SPECTRAL PERFORMANCE

Frequency (MHz)

–20

–40

–60

–80

–100

2.5

5.0

7.5

12.5

10.0

15.0

IN = 12.5MHz

IN = 1Vp-p

TYPICAL CHARACTERISTICS

At TA = +25°C, VS = LVDD = +5V, REFB = +2.25V, REFT = +3.25V, and Sampling Rate = 30MHz, unless otherwise specified.

DIFFERENTIAL LINEARITY ERROR

Output Code

–1

–2

IN = 12.5MHz

2Vp-p

256

512

768

1024

DIFFERENTIAL LINEARITY ERROR

Output Code

–1

–2

IN = 12.5MHz

IN = 1Vp-p

256

512

768

1024

FREQUENCY SPECTRUM

Frequency (MHz)

–10

–20

–30

–40

–50

–60

–70

–80

–90

–100

2.50

5.00

7.50

10.00

1 = 3.5MHz at –7dB

2 = 3.6MHz at –7dB

1 – f2 = 69.5dBFS

2 – f1 = 68.4dBFS

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