AD9627 datasheet(9/77 Pages) AD

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AD9627

Rev. B | Page 8 of 76

ADC AC SPECIFICATIONS—AD9627-125/AD9627-150

AVDD = 1.8 V, DVDD = 1.8 V, DRVDD = 3.3 V, maximum sample rate, VIN = −1.0 dBFS differential input, 1.0 V internal reference, DCS

enabled, fast detect output pins disabled, and signal monitor disabled, unless otherwise noted.

Table 4.

Parameter1

Temperature

AD9627-125

AD9627-150

Unit

Min

Typ

Max

Min

Typ

Max

SIGNAL-TO-NOISE RATIO (SNR)

fIN = 2.3 MHz

25°C

69.5

69.4

fIN = 70 MHz

25°C

69.4

69.2

Full

68.1

67.1

fIN = 140 MHz

25°C

69.1

68.8

fIN = 220 MHz

25°C

68.8

68.2

SIGNAL-TO-NOISE AND DISTORTION (SINAD)

fIN = 2.3 MHz

25°C

69.4

69.3

fIN = 70 MHz

25°C

69.3

69.1

Full

67.9

65.9

fIN = 140 MHz

25°C

69.0

68.7

fIN = 220 MHz

25°C

68.3

67.8

EFFECTIVE NUMBER OF BITS (ENOB)

fIN = 2.3 MHz

25°C

11.4

Bits

fIN = 70 MHz

25°C

11.4

Bits

fIN = 140 MHz

25°C

11.3

Bits

fIN = 220 MHz

25°C

11.3

11.2

Bits

WORST SECOND OR THIRD HARMONIC

fIN = 2.3 MHz

25°C

−86.5

dBc

fIN = 70 MHz

25°C

−85

−84

dBc

Full

−74

−73

dBc

fIN = 140 MHz

25°C

−84

−83.5

dBc

fIN = 220 MHz

25°C

−83

−77

dBc

SPURIOUS-FREE DYNAMIC RANGE (SFDR)

fIN = 2.3 MHz

25°C

86.5

dBc

fIN = 70 MHz

25°C

dBc

Full

dBc

fIN = 140 MHz

25°C

83.5

dBc

fIN = 220 MHz

25°C

dBc

WORST OTHER HARMONIC OR SPUR

fIN = 2.3 MHz

25°C

−92

dBc

fIN = 70 MHz

25°C

−89

−88

dBc

Full

−81

−80

dBc

fIN = 140 MHz

25°C

−89

−88

dBc

fIN = 220 MHz

25°C

−89

−88

dBc

TWO-TONE SFDR

fIN = 29.1 MHz, 32.1 MHz (−7 dBFS )

25°C

dBc

fIN = 169.1 MHz, 172.1 MHz (−7 dBFS )

25°C

dBc

CROSSTALK2

Full

−95

ANALOG INPUT BANDWIDTH

25°C

650

MHz

1 See Application Note AN-835, Understanding High Speed ADC Testing and Evaluation, for a complete set of definitions.

2 Crosstalk is measured at 100 MHz with −1 dBFS on one channel and with no input on the alternate channel.

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