ADS5481 datasheet(10/35 Pages) TI

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TYPICAL CHARACTERISTICS

ADS5481 - 80 MSPS Typical Data

f − Frequency − MHz

−130

−120

−110

−100

−90

−80

−70

−60

−50

−40

−30

−20

−10

G001

SFDR = 99 dBc

SINAD = 81 dBFS

SNR = 81.1 dBFS

THD = 96.5 dBc

f − Frequency − MHz

−130

−120

−110

−100

−90

−80

−70

−60

−50

−40

−30

−20

−10

G002

SFDR = 99 dBc

SINAD = 80.8 dBFS

SNR = 80.9 dBFS

THD = 94.2 dBc

f − Frequency − MHz

−130

−120

−110

−100

−90

−80

−70

−60

−50

−40

−30

−20

−10

G003

SFDR = 102 dBc

SINAD = 80.3 dBFS

SNR = 80.4 dBFS

THD = 97.7 dBc

f − Frequency − MHz

−130

−120

−110

−100

−90

−80

−70

−60

−50

−40

−30

−20

−10

G004

SFDR = 94 dBc

SINAD = 79.6 dBFS

SNR = 79.8 dBFS

THD = 92.6 dBc

ADS5481

ADS5482, ADS5483

SLAS565 – JUNE 2008 ...................................................................................................................................................................................................... www.ti.com

At TA = +25°C, sampling rate = Max Rated, 50% clock duty cycle, 3-VPP differential sinusoidal clock, analog input amplitude =

–1 dBFS, AVDD5 = 5 V, AVDD3 = 3.3 V, and DVDD3 = 3.3 V, unless otherwise noted.

Plots in this section are with clock of 80MSPS unless otherwise specified.

Spectral Performance

FFT for 10 MHz INPUT SIGNAL

FFT for 30 MHz INPUT SIGNAL

Figure 2.

Figure 3.

Spectral Performance

FFT for 60 MHz INPUT SIGNAL

FFT for 100 MHz INPUT SIGNAL

Figure 4.

Figure 5.

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