ADS4225 datasheet(68/104 Pages) TI1

68 / 104 page

−120

−100

−80

−60

−40

−20

30 32.5

Frequency (MHz)

SFDR = 90.9dBc

SINAD = 70.8dBFS

SNR = 70.9dBFS

THD = 88.1dBc

−120

−100

−80

−60

−40

−20

30 32.5

Frequency (MHz)

SFDR = 88.2dBc

SINAD = 69.5dBFS

SNR = 69.7dBFS

THD = 84.9dBc

−120

−100

−80

−60

−40

−20

30 32.5

Frequency (MHz)

SFDR = 88.8dBc

SINAD = 72.6dBFS

SNR = 72.6dBFS

THD = 89.2dBc

−120

−100

−80

−60

−40

−20

30 32.5

Frequency (MHz)

Each Tone at

−7dBFS Amplitude

fIN1 = 185.1MHz

fIN2 = 190.1MHz

Two−Tone IMD = 91.6dBFS

SFDR = 94.9dBFS

ADS4222, ADS4225, ADS4226

ADS4242, ADS4245, ADS4246

SBAS533C

– MARCH 2011 – REVISED JUNE 2011

www.ti.com

TYPICAL CHARACTERISTICS: ADS4222

At TA = +25°C, AVDD = 1.8V, DRVDD = 1.8V, maximum rated sampling frequency, sine wave input clock, 1.5VPP differential

clock amplitude, 50% clock duty cycle,

–1dBFS differential analog input, High-Performance Mode disabled, 0dB gain, DDR

LVDS output interface, and 32k point FFT, unless otherwise noted.

FFT FOR 20MHz INPUT SIGNAL

FFT FOR 170MHz INPUT SIGNAL

Figure 122.

Figure 123.

FFT FOR 300MHz INPUT SIGNAL

FFT FOR TWO-TONE INPUT SIGNAL

Figure 124.

Figure 125.

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Product Folder Link(s): ADS4222 ADS4225 ADS4226 ADS4242 ADS4245 ADS4246

ADS4225 Datasheet(PDF) 68 Page - Texas Instruments

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