TYPICAL CHARACTERISTICS

Input Frequency (MHz)

0

−20

−40

−60

−80

−100

−120

0

15

5

10

20

f

IN = 1MHz

SNR = 71.3dBFS

SINAD = 71.2dBFS

SFDR = 89.6dBc

Input Frequency (MHz)

0

−20

−40

−60

−80

−100

−120

0

15

5

10

20

f

IN = 5MHz (−1dBFS)

SNR = 70.4dBFS

SINAD = 70.2dBFS

SFDR = 87.2dBc

Input Frequency (MHz)

0

−20

−40

−60

−80

−100

−120

0

10

15

5

20

f

IN = 10MHz

SNR = 70.8dBFS

SINAD = 70.5dBFS

SFDR = 85.4dBc

Input Frequency (MHz)

0

−20

−40

−60

−80

−100

−120

0

15

5

10

20

f

IN = 20MHz

SNR = 70.5dBFS

SINAD = 70.2dBFS

SFDR = 83.4dBc

Code

1.0

0.8

0.6

0.4

0.2

0

−0.2

−0.4

−0.6

−0.8

−1.0

0

1536

2048

2560

3072

3584

512

1024

4096

f

IN = 5MHz

Input Frequency (MHz)

0

−20

−40

−60

−80

−100

−120

0

15

5

10

20

F1 = 9.5MHz (

−7dBFS)

F2 = 10.2MHz (

−7dBFS)

IMD =

−85dBFS

ADS5270

SBAS293F – JANUARY 2004 – REVISED JANUARY 2009............................................................................................................................................... www.ti.com

Typical values are at TA = +25C, clock frequency = maximum specified, 50% clock duty cycle, AVDD = 3.3V, LVDD = 3.3V,

–1dBFS, ISET = 56.2kΩ, internal voltage reference, and LVDS buffer current at 3.5mA per channel, unless otherwise noted.

SPECTRAL PERFORMANCE

SPECTRAL PERFORMANCE

Figure 1.

Figure 2.

SPECTRAL PERFORMANCE

SPECTRAL PERFORMANCE

Figure 3.

Figure 4.

INTERMODULATION DISTORTION

DIFFERENTIAL NONLINEARITY

Figure 5.

Figure 6.

14

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