ADS5547 datasheet(30/57 Pages) TI

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VoltageForcedontheCMPin − V

1.4

1.45

1.5

1.55

1.6

SFDR

SNR

f-Frequencyof ACCommon-ModeVoltage-MHz

-70

-65

-60

-45

-40

-35

100

-55

-50

f − Frequency − MSPS

100

90 110 130 150

190 210

170

DDRLVDS

CMOS

5-pFLoadCap

CMOS

0-pFLoadCap

CMOS

10-pFLoadCap

F − SamplingFrequency − MSPS

0.64

0.70

0.76

0.82

0.88

0.94

1.00

1.06

1.12

1.18

1.24

80 100 120 140 160 180

220

LVDSMode

Default

PowerMode1

PowerMode2

PowerMode3

200

ADS5527

SLWS196A – DECEMBER 2006 – REVISED MAY 2007

TYPICAL CHARACTERISTICS (continued)

All plots are at 25

°C, AVDD = DRVDD = 3.3 V, sampling frequency = 210 MSPS, sine wave input clock, 1.5 V

PP differential

clock amplitude, 50% clock duty cycle, –1 dBFS differential analog input, internal reference mode, 0 dB gain, DDR LVDS

data output (unless otherwise noted)

PERFORMANCE IN EXTERNAL REFERENCE MODE

COMMON-MODE REJECTION RATIO vs FREQUENCY

Figure 33.

Figure 34.

POWER DISSIPATION vs

DIGITAL CURRENT vs

SAMPLING FREQUENCY (DDR LVDS)

SAMPLING FREQUENCY (Parallel CMOS)

Figure 35.

Figure 36.

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