ADS42LB49 datasheet(17/70 Pages) TI

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1.85

1.87

1.9

1.93

1.95

72.5

73.5

74.5

75.5

Input Common−Mode Voltage (V)

SFDR

SNR

Input Frequency = 70 MHz

G019

1.85

1.87

1.9

1.93

1.95

101

72.5

73.5

74.5

75.5

Input Common−Mode Voltage (V)

SFDR

SNR

Input Frequency = 170 MHz

G020

−70

−60

−50

−40

−30

−20

−10

71.5

72.5

73.5

74.5

75.5

76.5

100

110

120

130

Amplitude (dBFS)

SNR(dBFS)

SFDR(dBc)

SFDR(dBFS)

Input Frequency = 70 MHz

G017

−70

−60

−50

−40

−30

−20

−10

72.5

73.5

74.5

75.5

76.5

77.5

100

110

120

130

Amplitude (dBFS)

SNR(dBFS)

SFDR(dBc)

SFDR(dBFS)

Input Frequency = 170 MHz

G018

ADS42JB49

ADS42JB69

www.ti.com

SLAS900C – OCTOBER 2012 – REVISED JULY 2013

TYPICAL CHARACTERISTICS: ADS42JB69 (continued)

Typical values are at TA = +25°C, ADC sampling rate = 250 MSPS, 50% clock duty cycle, AVDD = 1.8 V, AVDD3V = 3.3 V,

DRVDD = 1.8 V, IOVDD = 1.8 V, –1-dBFS differential input, 2-VPP full-scale, and 32k-point FFT, unless otherwise noted.

Figure 22. PERFORMANCE vs INPUT AMPLITUDE

Figure 23. PERFORMANCE vs INPUT AMPLITUDE

(70 MHz)

(170 MHz)

Figure 24. PERFORMANCE vs

Figure 25. PERFORMANCE vs

INPUT COMMON-MODE VOLTAGE (70 MHz)

INPUT COMMON-MODE VOLTAGE (170 MHz)

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