AD9259_17 datasheet(6/53 Pages) AD

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Data Sheet

AD9259

Rev. E | Page 5 of 52

AC SPECIFICATIONS

AVDD = 1.8 V, DRVDD = 1.8 V, 2 V p-p differential input, 1.0 V internal reference, AIN = −0.5 dBFS, unless otherwise noted.

Table 2.

Parameter1

Temperature

Min

Typ

Max

Unit

SIGNAL-TO-NOISE RATIO (SNR)

fIN = 2.4 MHz

Full

73.5

fIN = 19.7 MHz

Full

71.0

73.0

fIN = 70 MHz

Full

72.8

SIGNAL-TO-NOISE AND DISTORTION RATIO (SINAD)

fIN = 2.4 MHz

Full

72.7

fIN = 19.7 MHz

Full

70.2

72.2

fIN = 70 MHz

Full

72.0

EFFECTIVE NUMBER OF BITS (ENOB)

fIN = 2.4 MHz

Full

11.92

Bits

fIN = 19.7 MHz

Full

11.5

11.85

Bits

fIN = 70 MHz

Full

11.8

Bits

SPURIOUS-FREE DYNAMIC RANGE (SFDR)

fIN = 2.4 MHz

Full

dBc

fIN = 19.7 MHz

Full

dBc

fIN = 70 MHz

Full

dBc

WORST HARMONIC (Second or Third)

fIN = 2.4 MHz

Full

−88

dBc

fIN = 19.7 MHz

Full

−84

−73

dBc

fIN = 70 MHz

Full

−78

dBc

WORST OTHER (Excluding Second or Third)

fIN = 2.4 MHz

Full

−90

dBc

fIN = 19.7 MHz

Full

−90

−80

dBc

fIN = 70 MHz

Full

−88

dBc

TWO-TONE INTERMODULATION DISTORTION (IMD)—AIN1

AND AIN2 = −7.0 dBFS

fIN1 = 15 MHz, fIN2 = 16 MHz

25°C

80.0

dBc

fIN1 = 70 MHz, fIN2 = 71 MHz

25°C

80.0

dBc

See the AN-835 Application Note, Understanding High Speed ADC Testing and Evaluation, at www.analog.com for definitions and for details on how these tests were

completed.

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