AD9649-80EBZ1 datasheet(5/32 Pages) AD

Part #	AD9649-80EBZ1

Description	14-Bit, 20/40/65/80 MSPS 1.8 V Analog-to-Digital Converter

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AD9649

Rev. 0 | Page 5 of

32

AC SPECIFICATIONS

AVDD = 1.8 V; DRVDD = 1.8 V, maximum sample rate, 2 V p-p differential input, 1.0 V internal reference; AIN = −1.0 dBFS, 50% duty

cycle clock, unless otherwise noted.

Table 2.

Parameter1

Temp

AD9649-20/AD9649-40

AD9649-65

AD9649-80

Unit

Min

Typ

Max

Min

Typ

Max

Min

Typ

Max

SIGNAL-TO-NOISE RATIO (SNR)

fIN = 9.7 MHz

25°C

74.7

74.5

74.3

dBFS

fIN = 30.5 MHz

25°C

74.4

74.3

74.1

dBFS

Full

73.1

73.6

dBFS

fIN = 70 MHz

25°C

73.7

73.6

dBFS

Full

72.7

dBFS

fIN = 200 MHz

25°C

71.5

dBFS

SIGNAL-TO-NOISE-AND-DISTORTION (SINAD)

fIN = 9.7 MHz

25°C

74.6

74.4

74.1

dBFS

fIN = 30.5 MHz

25°C

74.3

74.2

74.0

dBFS

Full

73.0

73.5

dBFS

fIN = 70 MHz

25°C

73.6

73.5

dBFS

Full

72.6

dBFS

fIN = 200 MHz

25°C

70.0

dBFS

EFFECTIVE NUMBER OF BITS (ENOB)

fIN = 9.7 MHz

25°C

12.0

Bits

fIN = 30.5 MHz

25°C

12.0

Bits

fIN = 70 MHz

25°C

11.9

Bits

fIN = 200 MHz

25°C

11.3

Bits

WORST SECOND OR THIRD HARMONIC

fIN = 9.7 MHz

25°C

−95

−93

dBc

fIN = 30.5 MHz

25°C

−95

−93

dBc

Full

−82

−83

dBc

fIN = 70 MHz

25°C

−94

−92

dBc

Full

−82

dBc

fIN = 200 MHz

25°C

−80

dBc

SPURIOUS-FREE DYNAMIC RANGE (SFDR)

fIN = 9.7 MHz

25°C

95

93

dBc

fIN = 30.5 MHz

25°C

94

93

dBc

Full

82

83

dBc

fIN = 70 MHz

25°C

93

92

dBc

Full

82

dBc

fIN = 200 MHz

25°C

80

dBc

WORST OTHER (HARMONIC OR SPUR)

fIN = 9.7 MHz

25°C

−100

dBc

fIN = 30.5 MHz

25°C

−100

dBc

Full

−90

dBc

fIN = 70 MHz

25°C

−100

dBc

Full

−90

dBc

fIN = 200 MHz

25°C

−95

dBc

TWO-TONE SFDR

fIN = 30.5 MHz (−7 dBFS), 32.5 MHz (−7 dBFS)

25°C

90

dBc

ANALOG INPUT BANDWIDTH

25°C

700

MHz

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

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