AD9261 datasheet(10/29 Pages) AD

10 / 29 page

AD9261

Rev. 0 | Page 9 of 28

TYPICAL PERFORMANCE CHARACTERISTICS

All power supplies set to 1.8 V, 640 MHz sample rate, 2 V p-p differential input, 0.5 V internal reference, PLL disabled, AIN = −2.0 dBFS,

TA = 25°C, unless otherwise noted.

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FREQUENCY (MHz)

BANDWIDTH: 2.5MHz

DATA RATE: 40MSPS

fIN: 600kHz AT –2dBFS

SNR: 88.8dB

SFDR: 90dBc

Figure 4. Single-Tone FFT with fIN = 600 kHz and BW = 2.5 MHz

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FREQUENCY (MHz)

BANDWIDTH: 5MHz

DATA RATE: 40MSPS

fIN: 1.2MHz AT –2dBFS

SNR: 86dB

SFDR: 90.3dBc

Figure 5. Single-Tone FFT with fIN = 1.2 MHz and BW = 5 MHz

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FREQUENCY (MHz)

BANDWIDTH: 2.5MHz

DATA RATE: 40MSPS

fIN1: 2.1MHz AT –8dBFS

fIN2: 2.5MHz AT –8dBFS

SFDR: 90.6dBc

Figure 6. Two-Tone FFT with fIN1 = 2.1 MHz, fIN2 = 2.5 MHz, and BW = 2.5 MHz

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FREQUENCY (MHz)

BANDWIDTH: 5MHz

DATA RATE: 40MSPS

fIN1: 2.1MHz AT –8dBFS

fIN2: 2.4MHz AT –8dBFS

SFDR: 91.9dBc

Figure 7. Two-Tone FFT with fIN1 = 2.1 MHz, fIN2 = 2.4 MHz and BW = 5 MHz

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