Rainbow-electronics MAX1215 Manual do Utilizador descarregar pdf (Página 7)

MAX1215

1.8V, 12-Bit, 250Msps ADC for

Broadband Applications

_______________________________________________________________________________________ 7

SNR/SINAD, SFDR vs. SUPPLY VOLTAGE

= 65.03279MHz, A

= -1dBFS)

MAX1215toc22

SUPPLY VOLTAGE (V)

SNR/SINAD, SFDR (dB, dBc)

1.70 1.75 1.80 1.85 1.90

SNR

SINAD

SFDR

= OV

1.2460

1.2480

1.2470

1.2500

1.2490

1.2510

1.2520

INTERNAL REFERENCE

vs. SUPPLY VOLTAGE

MAX1215toc23

SUPPLY VOLTAGE (V)

REFIO

(V)

1.70 1.75 1.80 1.85 1.90

MEASURED AT THE REFIO PIN

REFADJ = AV

= OV

-40 10-15 35 60 85

PROPAGATION DELAY TIMES

vs. TEMPERATURE

TEMPERATURE (

PROPAGATION DELAY (ns)

MAX1215toc24

PDL

CPDL

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.)

-40 -30 -25-35 -20 -15 -10 -5 0

NOISE-POWER RATIO vs. ANALOG INPUT

POWER (f

NOTCH

= 28.8MHz ± 1MHz)

MAX1215toc25

ANALOG INPUT POWER (dBFS)

NPR (dB)

WIDE NOISE BANDWIDTH = 50MHz

-100

-80

-90

-60

-70

-40

-50

-30

-10

-20

0101552025304035 45 50

NOISE-POWER RATIO PLOT

(WIDE NOISE BANDWIDTH: 50MHz)

MAX1215toc26

ANALOG INPUT POWER (MHz)

NPR (dB)

NOTCH

= 28.8MHz

NPR = 65.4dB

-40 10-15 35 60 85

SNR/SINAD vs. TEMPERATURE

= 100MHz, A

= -1dBFS)

TEMPERATURE (

SNR/SINAD (dB)

MAX1215toc19

SNR

SINAD

-40 10-15 35 60 85

SFDR vs. TEMPERATURE

= 100MHz, A

= -1dBFS)

TEMPERATURE (

SFDR (dBc)

MAX1215toc20

-100

-88

-92

-96

-84

-80

-76

-72

-68

-64

-60

-40 10-15 35 60 85

HD2/HD3 vs. TEMPERATURE

= 100MHz, A

= -1dBFS)

TEMPERATURE (

HD2/HD3 (dBc)

MAX1215toc21

HD2

HD3

1 2 3 4 5 6 7 8 9 10 11 12 ... 19 20

Broadband Applications 1

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