Rainbow-electronics MAX1215 Manual do Utilizador descarregar pdf (Página 6)

MAX1215

1.8V, 12-Bit, 250Msps ADC for

Broadband Applications

6 _______________________________________________________________________________________

Typical Operating Characteristics (continued)

(AV

= OV

= 1.8V, AGND = OGND = 0, f

SAMPLE

= 250MHz, A

= -1dBFS; see each TOC for detailed information on test condi-

tions, differential input drive, differential sine-wave clock input drive, 0.1µF capacitor on REFIO, internal reference, digital output pins

differential R

= 100Ω, T

= +25°C.)

SFDR vs. ANALOG INPUT AMPLITUDE

SAMPLE

= 249.99936MHz, f

= 65.03279MHz)

MAX1215 toc10

ANALOG INPUT AMPLITUDE (dBFS)

SFDR (dBc)

-5-15-25-35-45 -10-20-30-40-50

-55 0

HD2/HD3 vs. ANALOG INPUT AMPLITUDE

SAMPLE

= 249.99936MHz, f

= 65.03279MHz)

MAX1215 toc11

ANALOG INPUT AMPLITUDE (dBFS)

HD2/HD3 (dBc)

-5-15-25-35-45 -10-20-30-40-50

-90

-80

-60

-70

-40

-50

-30

-100

-55 0

HD3

HD2

SNR/SINAD vs. SAMPLE

FREQUENCY

= 65MHz, A

= -1dBFS)

MAX1215 toc12

SAMPLE

(MHz)

SNR/SINAD (dB)

15010050 200

0250

SNR

SINAD

SFDR vs. SAMPLE FREQUENCY

= 65MHz, A

= -1dBFS)

MAX1215 toc13

SAMPLE

(MHz)

SFDR (dBc)

15010050 200

0250

HD2/HD3 vs. SAMPLE FREQUENCY

= 65MHz, A

= -1dBFS)

MAX1215 toc14

SAMPLE

(MHz)

HD2/HD3 (dBc)

15010050 200

-105

-100

-75

-90

-95

-65

-80

-70

-85

-60

-110

0250

HD3

HD2

TOTAL POWER DISSIPATION vs. SAMPLE

FREQUENCY (f

= 65MHz, A

= -1dBFS)

MAX1215 toc15

SAMPLE

(MHz)

DISS

(mW)

15010050 200

900

920

910

930

980

950

940

1000

970

990

960

1010

890

0250

INTEGRAL NONLINEARITY

vs. DIGITAL OUTPUT CODE

MAX1215 toc16

DIGITAL OUTPUT CODE

INL (LSB)

358430722048 25601024 1536512

-0.8

-0.6

-0.4

-0.2

0.2

0.4

0.6

0.8

1.0

-1.0

0 4096

= 13MHz

DIFFERENTIAL NONLINEARITY

vs. DIGITAL OUTPUT CODE

MAX1215 toc17

DIGITAL OUTPUT CODE

DNL (LSB)

358430722048 25601024 1536512

-0.8

-0.6

-0.4

-0.2

0.2

0.4

0.6

0.8

1.0

-1.0

0 4096

= 13MHz

-7

10 100 1000

GAIN BANDWIDTH PLOT

SAMPLE

= 249.99936MHz, A

= -1dBFS)

-5

-6

MAX1215 toc18

ANALOG INPUT FREQUENCY (MHz)

GAIN (dB)

-3

-4

-1

-2

DIFFERENTIAL TRANSFORMER COUPLING

1 2 3 4 5 6 7 8 9 10 11 ... 19 20

Broadband Applications 1

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