AD9245_15 datasheet(6/32 Pages) AD

Part #	AD9245

Description	14-Bit, 20 MSPS/40 MSPS/65 MSPS/80 MSPS, 3 V A/D Converter

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AD9245

Data Sheet

Rev. E | Page 6 of 32

AVDD = 3 V, DRVDD = 2.5 V, sample rate = 80 MSPS, 2 V p-p differential input, 1.0 V external reference, AIN = –0.5 dBFS, DCS off,

unless otherwise noted.

Table 4.

AD9245BCP-80

Parameter

Min

Typ

Max

Unit

SIGNAL-TO-NOISE RATIO (SNR)

fIN = 2.4 MHz

71.1

73.3

dB

fIN = 40 MHz

72.7

dB

fIN = 70 MHz

70.5

71.7

dB

fIN = 100 MHz

70.2

dB

SIGNAL-TO-NOISE AND DISTORTION (SINAD)

fIN = 2.4 MHz

70.7

73.2

dB

fIN = 40 MHz

72.5

dB

fIN = 70 MHz

69.9

71.2

dB

fIN = 100 MHz

69.6

dB

EFFECTIVE NUMBER OF BITS (ENOB)

fIN = 2.4 MHz

11.5

11.9

Bits

fIN = 40 MHz

11.8

Bits

fIN = 70 MHz

11.3

11.5

Bits

fIN = 100 MHz

11.3

Bits

WORST HARMONIC (SECOND OR THIRD)

fIN = 2.4 MHz

−92.8

–76.5

dBc

fIN = 40 MHz

–87.6

dBc

fIN = 70 MHz

−81.6

–75.7

dBc

fIN = 100 MHz

–79.0

dBc

SPURIOUS-FREE DYNAMIC RANGE (SFDR)

fIN = 2.4 MHz

76.5

92.8

dBc

fIN = 40 MHz

87.6

dBc

fIN = 70 MHz

75.7

81.6

dBc

fIN = 100 MHz

79.0

dBc

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