AD9683 datasheet(6/45 Pages) AD

6 / 45 page

Data Sheet

AD9683

Rev. D | Page 5 of 44

ADC AC SPECIFICATIONS

AVDD = 1.8 V, DRVDD = 1.8 V, DVDD = 1.8 V, maximum sample rate for speed grade, VIN = −1.0 dBFS differential input, 1.75 V p-p

full-scale input range, default SPI, unless otherwise noted.

Table 2.

AD9683-170

AD9683-250

Parameter1

Temperature

Min

Typ

Max

Min

Typ

Max

Unit

SIGNAL-TO-NOISE-RATIO (SNR)

fIN = 30 MHz

25°C

72.3

72.1

dBFS

fIN = 90 MHz

25°C

72.0

71.7

dBFS

Full

dBFS

fIN = 140 MHz

25°C

71.3

dBFS

fIN = 185 MHz

25°C

70.5

70.6

dBFS

Full

70.0

dBFS

fIN = 220 MHz

25°C

70.0

dBFS

SIGNAL-TO-NOISE AND DISTORTION (SINAD)

fIN = 30 MHz

25°C

71.3

70.9

dBFS

fIN = 90 MHz

25°C

70.8

70.6

dBFS

Full

69.9

dBFS

fIN = 140 MHz

25°C

70.2

70.1

dBFS

fIN = 185 MHz

25°C

69.5

dBFS

Full

68.7

dBFS

fIN = 220 MHz

25°C

68.8

68.7

dBFS

EFFECTIVE NUMBER OF BITS (ENOB)

fIN = 30 MHz

25°C

11.5

Bits

fIN = 90 MHz

25°C

11.5

11.4

Bits

fIN = 140 MHz

25°C

11.4

Bits

fIN = 185 MHz

25°C

11.3

Bits

fIN = 220 MHz

25°C

11.1

Bits

SPURIOUS-FREE DYNAMIC RANGE (SFDR)

fIN = 30 MHz

25°C

dBc

fIN = 90 MHz

25°C

dBc

Full

dBc

fIN = 140 MHz

25°C

dBc

fIN = 185 MHz

25°C

dBc

Full

dBc

fIN = 220 MHz

25°C

dBc

WORST SECOND OR THIRD HARMONIC

fIN = 30 MHz

25°C

−94

−87

dBc

fIN = 90 MHz

25°C

−89

−86

dBc

Full

−81

dBc

fIN = 140 MHz

25°C

−94

−87

dBc

fIN = 185 MHz

25°C

−89

−88

dBc

Full

−80

dBc

fIN = 220 MHz

25°C

−87

−86

dBc

WORST OTHER (HARMONIC OR SPUR)

fIN = 30 MHz

25°C

−99

−95

dBc

fIN = 90 MHz

25°C

−92

−94

dBc

Full

−83

dBc

fIN = 140 MHz

25°C

−96

−94

dBc

fIN = 185 MHz

25°C

−94

−93

dBc

Full

−82

dBc

fIN = 220 MHz

25°C

−95

−92

dBc

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