ADS5287 datasheet(27/42 Pages) TI

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AnalogInputCommon-ModeVoltage(V)

1.30

1.70

1.40

1.35

SNR(dBFS)

SFDR(dBc)

f =65MHz

=10MHz

1.45

1.65

1.60

1.55

1.50

ExternalReferenceDifferentialVoltage,REF

REF (V)

1.6

2.4

1.9

1.8

1.7

SNR(dBFS)

SFDR(dBc)

f =65MHz

=10MHz

2.0

2.3

2.2

2.1

Externalreferencecommon-modevoltage

maintainedat1.5V.

InputAmplitude(dBFS)

-50

-35

-40

-45

-30

SNR(dBFS)

SFDR(dBc)

f =65MHz

=10MHz

-25

-20

-15

-10

-5

ClockAmplitude(V

Differential)

0.1

0.6

2.3

1.6

1.1

SNR(dBFS)

SFDR(dBc)

f =65MHz

=10MHz

2.1

ADS5287

www.ti.com

SBAS428D – JANUARY 2008 – REVISED JUNE 2012

TYPICAL CHARACTERISTICS (continued)

Typical values at +25°C. Minimum and maximum values are measured across the specified temperature range of TMIN =

–40°C to TMAX = +85°C, AVDD = 3.3V, LVDD = 1.8V, clock frequency = 10MSPS to 65MSPS, 50% clock duty cycle, –1dBFS

differential analog input, internal reference mode, ISET resistor = 56.2kΩ, and LVDS buffer current setting = 3.5mA, unless

otherwise noted.Typical values at +25°C.

DYNAMIC PERFORMANCE

INPUT AMPLITUDE

CLOCK AMPLITUDE

Figure 16.

Figure 17.

DYNAMIC PERFORMANCE

ANALOG INPUT COMMON-MODE VOLTAGE

EXTERNAL REFERENCE DIFFERENTIAL VOLTAGE

Figure 18.

Figure 19.

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