AD9238 datasheet(12/49 Pages) AD

12 / 49 page

AD9238

Rev. C | Page 11 of 48

TYPICAL PERFORMANCE CHARACTERISTICS

AVDD, DRVDD = 3.0 V, T = 25°C, AIN differential drive, full scale = 2 V, unless otherwise noted.

–120

–100

–80

–60

–40

–20

SECOND

HARMONIC

FREQUENCY (MHz)

CROSSTALK

THIRD

HARMONIC

Figure 5. Single-Tone FFT of Channel A Digitizing fIN = 12.5 MHz

While Channel B Is Digitizing fIN = 10 MHz

–120

–100

–80

–60

–40

–20

FREQUENCY (MHz)

CROSSTALK

SECOND

HARMONIC

Figure 6. Single-Tone FFT of Channel A Digitizing fIN = 70 MHz

While Channel B Is Digitizing fIN = 76 MHz

–120

–100

–80

–60

–40

–20

SECOND

HARMONIC

FREQUENCY (MHz)

CROSSTALK

Figure 7. Single-Tone FFT of Channel A Digitizing fIN = 120 MHz

While Channel B is Digitizing fIN = 126 MHz

ADC SAMPLE RATE (MSPS)

100

SNR

SFDR

Figure 8. AD9238-65 Single-Tone SNR/SFDR vs. FS with fIN = 32.5 MHz

ADC SAMPLE RATE (MSPS)

100

SNR

SFDR

SNR

Figure 9. AD9238-40 Single-Tone SNR/SFDR vs. FS with fIN = 20 MHz

ADC SAMPLE RATE (MSPS)

100

510

SFDR

SNR

Figure 10. AD9238-20 Single-Tone SNR/SFDR vs. FS with fIN = 10 MHz

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