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Typical operating characteristics (continued) – Rainbow Electronics MAX1211 User Manual

Page 9

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MAX1211

65Msps, 12-Bit, IF Sampling ADC

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9

Typical Operating Characteristics (continued)

(V

DD

= 3.3V, OV

DD

= 2.0V, GND = 0, REFIN = REFOUT (internal reference), C

REFOUT

= 0.1µF, C

L

≈ 5pF at digital outputs, differential

input at -0.5dBFS, DCE = high, CLKTYP = high, PD = low, G/T = low, f

CLK

≈ 65MHz (50% duty cycle), C

REFP

= C

REFN

= 0.1µF to GND,

1µF in parallel with 10µF between REFP and REFN, C

COM

= 0.1µF in parallel with 2.2µF to GND, T

A

= +25°C, unless otherwise noted.)

65.0

66.0

65.5

67.0

66.5

68.0

67.5

68.5

69.5

69.0

70.0

30

40

45

50

35

55

60

65

70

SIGNAL-TO-NOISE RATIO

vs. SAMPLING RATE

MAX1211 toc09

f

CLK

(MHz)

SNR (dB)

f

IN

≈ 32.1MHz

DIFFERENTIAL CLOCK

SINGLE-ENDED CLOCK

65.0

66.0

65.5

67.0

66.5

68.0

67.5

68.5

69.5

69.0

70.0

30

40

45

50

35

55

60

65

70

SIGNAL-TO-NOISE + DISTORTION

vs. SAMPLING RATE

MAX1211 toc10

f

CLK

(MHz)

SINAD (dB)

f

IN

≈ 32.1MHz

DIFFERENTIAL CLOCK

SINGLE-ENDED CLOCK

-100

-95

-90

-85

-80

-75

-70

30

40

35

45

50

55

60

65

70

TOTAL HARMONIC DISTORTION

vs. SAMPLING RATE

MAX1211 toc11

f

CLK

(MHz)

THD (dBc)

f

IN

≈ 32.1MHz

DIFFERENTIAL CLOCK

SINGLE-ENDED CLOCK

70

75

80

85

90

95

100

30

40

35

45

50

55

60

65

70

SPURIOUS-FREE DYNAMIC RANGE

vs. SAMPLING RATE

MAX1211 toc12

f

CLK

(MHz)

SFDR (dBc)

f

IN

≈ 32.1MHz

DIFFERENTIAL CLOCK

SINGLE-ENDED CLOCK