ADS5481 datasheet(19/42 Pages) TI

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DVDD3 − Supply Voltage − V

2.9

3.0

3.1

3.2

3.3

3.4

3.5

3.6

3.7

G034

TA = 55°C

TA = 85°C

TA = 25°C

TA = 100°C

TA = −20°C

TA = −40°C

TA = 0°C

fS = 105 MSPS

fIN = 30 MHz

TA = 10°C

f -InputFrequency-MHz

SNR-dBFS

100

140

170

100

105

M0048-06

120

160

ADS5481

ADS5482

ADS5483

www.ti.com................................................................................................................................................... SLAS565A – JUNE 2008 – REVISED NOVEMBER 2008

TYPICAL CHARACTERISTICS (continued)

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.

ADS5482 SNR

DVDD3 OVER TEMPERATURE

Figure 35.

ADS5482/5481 SNR vs INPUT FREQUENCY AND SAMPLING FREQUENCY

Figure 36.

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