ADS5294IPFPR datasheet(19/67 Pages) TI1

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−96

−86

−76

−66

−56

−46

−36

−26

−16

−6 0

100

110

120

74.5

75.5

76.5

77.5

78.5

79.5

Input amplitude (dBFS)

SNR

SFDR(dBc)

SFDR(dBFS)

0.2

0.4

0.6

0.8

1.2

1.4

1.6

1.8

2.2

2.4

Input Clock Amplitude, differential (Vp−p)

SFDR

SNR

Digital gain (dB)

Input frequency = 10 MHz

Input frequency = 70 MHz

G001

Digital gain (dB)

Input frequency = 10 MHz

Input frequency = 70 MHz

G001

ADS5294

www.ti.com

SLAS776B – NOVEMBER 2011 – REVISED JULY 2012

TYPICAL CHARACTERISTICS (continued)

Typical values are at 25°C, AVDD = 1.8 V, LVDD = 1.8V, 50% clock duty cycle, –1 dBFS differential analog input, 14 Bit/80

MSPS, ADC is configured in the internal reference mode, unless otherwise noted.

Figure 16. SNR vs. Digital Gain

Figure 17. SFDR vs. Digital Gain

Figure 18. Performance vs. Input Amplitude

Figure 19. Performance vs. Clock Input Amplitudes

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