AD9244 datasheet(5/37 Pages) AD

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AD9244

Rev. C | Page 4 of 36

AC SPECIFICATIONS

AVDD = 5 V, DRVDD = 3 V, fSAMPLE = 65 MSPS (–65) or 40 MSPS (–40), differential clock inputs, VREF = 2 V, external reference,

AIN = –0.5 dBFS, differential analog inputs, unless otherwise noted.

Table 2.

Test

AD9244BST-65

AD9244BST-40

Parameter

Temp

Level

Min

Typ

Max

Min

Typ

Max

Unit

SNR1

fIN = 2.4 MHz

Full

72.4

73.4

dBc

25°C

74.8

75.3

dBc

fIN = 15.5 MHz (–1 dBFS)

Full

72.0

dBc

25°C

73.7

dBc

fIN = 20 MHz

Full

72.1

dBc

25°C

74.7

dBc

fIN = 32.5 MHz

Full

70.8

dBc

25°C

73.0

dBc

fIN = 70 MHz

Full

69.9

dBc

25°C

72.2

dBc

fIN = 100 MHz

25°C

71.2

72.8

dBc

fIN = 200 MHz

25°C

67.2

68.3

dBc

SINAD1

fIN = 2.4 MHz

Full

72.2

73.2

dBc

25°C

74.7

75.1

dBc

fIN = 20 MHz

Full

dBc

25°C

74.4

dBc

fIN = 32.5 MHz

Full

70.6

dBc

25°C

72.6

dBc

fIN = 70 MHz

Full

69.7

dBc

25°C

71.9

dBc

fIN = 100 MHz

25°C

72.4

dBc

fIN = 200 MHz

25°C

59.8

56.3

dBc

ENOB

fIN = 2.4 MHz

Full

11.7

11.9

Bits

25°C

12.1

12.2

Bits

fIN = 20 MHz

Full

11.7

Bits

25°C

12.1

Bits

fIN = 32.5 MHz

Full

11.4

Bits

25°C

11.8

Bits

fIN = 70 MHz

Full

11.3

Bits

25°C

11.7

Bits

fIN = 100 MHz

25°C

11.5

11.7

Bits

fIN = 200 MHz

25°C

9.6

9.1

Bits

THD1

fIN = 2.4 MHz

Full

−78.4

−80.7

dBc

25°C

−90.0

−89.7

dBc

fIN = 20 MHz

Full

−80.4

dBc

25°C

−89.4

dBc

fIN = 32.5 MHz

Full

−79.2

dBc

25°C

−84.6

dBc

fIN = 70 MHz

Full

−78.7

dBc

25°C

−84.1

dBc

fIN = 100 MHz

25°C

−83.0

−83.2

dBc

fIN = 200 MHz

25°C

−60.7

−56.6

dBc

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