Rainbow-electronics MAX1425 Manual do Utilizador descarregar pdf (Página 7)

MAX1425

10-Bit, 20Msps ADC

_______________________________________________________________________________________ 7

-80

-60

-40

-20

TOTAL HARMONIC DISTORTION

vs. POWER (f

= 9.884MHz)

MAX1425-16

INPUT (dB)

THD (dB)

-60 -30-45 -15

EFFECTIVE NUMBER OF BITS

vs. POWER (f

= 9.884MHz)

MAX1425-19

INPUT (dB)

ENOB (bits)

-60 -30-45 -15 0

EFFECTIVE NUMBER OF BITS

vs. POWER (f

= 2.003MHz)

MAX1425-17

INPUT (dB)

ENOB (bits)

-60 -30-45 -15 0

EFFECTIVE NUMBER OF BITS

vs. POWER (f

= 5.009MHz)

MAX1425-18

INPUT (dB)

ENOB (bits)

-60 -30-45 -15 0

8.0

9.2

8.8

8.4

9.6

10.0

EFFECTIVE NUMBER OF BITS

vs. INPUT FREQUENCY

MAX1425-20

INPUT FREQUENCY (MHz)

ENOB (bits)

264810

SIGNAL-TO-NOISE RATIO

vs. INPUT FREQUENCY

MAX1425-21

INPUT FREQUENCY (MHz)

SNR (dB)

264810

Typical Operating Characteristics (continued)

= V

CMLP

= +5V, V

= +3.3V, V

CMLN

= V

AGND

= 0, internal reference, digital output load = 35pF, f

CLK

= 20Msps (50%

duty cycle), for dynamic performance 0dB is full scale, T

= +25°C, unless otherwise noted.)

-80

-70

-60

TOTAL HARMONIC DISTORTION

vs. INPUT FREQUENCY

MAX1425-22

INPUT FREQUENCY (MHz)

THD (dB)

264810

-65

-75

SIGNAL-TO-NOISE PLUS DISTORTION

vs. INPUT FREQUENCY

MAX1425-23

INPUT FREQUENCY (MHz)

SINAD (dB)

264810

-160

-120

-140

-100

-40

-20

-60

-80

0 23451 678910

FFT PLOT (f

= 2MHz)

MAX1425-24

FREQUENCY (MHz)

MAGNITUDE (dB)

1 2 3 4 5 6 7 8 9 10 11 12 ... 15 16

10-Bit, 20Msps ADC 1

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