MAX1211 Ver la hoja de datos (PDF) - Maxim Integrated

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MAX1211

65Msps, 12-Bit, IF Sampling ADC

Maxim Integrated 

65Msps, 12-Bit, IF Sampling ADC

Typical Operating Characteristics (continued)

(VDD = 3.3V, OVDD = 2.0V, GND = 0, REFIN = REFOUT (internal reference), CREFOUT = 0.1µF, CL ≈ 5pF at digital outputs, differential

input at -0.5dBFS, DCE = high, CLKTYP = high, PD = low, G/T = low, fCLK ≈ 65MHz (50% duty cycle), CREFP = CREFN = 0.1µF to GND,

1µF in parallel with 10µF between REFP and REFN, CCOM = 0.1µF in parallel with 2.2µF to GND, TA = +25°C, unless otherwise noted.)

0

-10

-20

-30

-40

-50

-60

-70

-80

-90

-100

-110

0

TWO-TONE FFT PLOT

(16,384-POINT DATA RECORD)

fIN1

fIN2

2 x fIN1 - fIN2

4 8 12 16 20 24 28 32

FREQUENCY (MHz)

fCLK = 65.00352Msps

fIN1 = 68.4988875MHz

fIN2 = 71.49832MHz

SNR = 63.37dBc

SFDRTT = 87.36dBc

IM3 = -88.91dBc

AIN1 = -7.04dBFS

AIN2 = -6.98dBFS

SINAD = 63.56dBc

IMD = -85.20dBc

TWO-TONE FFT PLOT

(16,384-POINT DATA RECORD)

0

-10

fIN2 fIN1

-20

-30

-40

-50

3 x fIN1 + fIN2

fIN2 - fIN1

-60 2 x fIN1 + fIN2

-70

-80

fIN1 + fIN2

2 x fIN1 - fIN2

-90

-100

-110

0 4 8 12 16 20 24 28 32

FREQUENCY (MHz)

fCLK = 65.00352Msps

fIN1 = 172.5029325MHz

fIN2 = 177.50196MHz

SNR = 61.24dBc

SFDRTT = 78.13dBc

IM3 = -81.20dBc

AIN1 = -7.03dBFS

AIN2 = -7.02dBFS

SINAD = 61.21dBc

IMD = -78.14dBc

1.0

0.8

0.6

0.4

0.2

0

-0.2

-0.4

-0.6

-0.8

-1.0

0

INTEGRAL NONLINEARITY

512 1024 1536 2048 2560 3072 3584 4096

DIGITAL OUTPUT CODE

0.5

0.4

0.3

0.2

0.1

0

-0.1

-0.2

-0.3

-0.4

-0.5

0

DIFFERENTIAL NONLINEARITY

512 1024 1536 2048 2560 3072 3584 4096

DIGITAL OUTPUT CODE

8 _______________________________________________________________________________________

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