Rainbow-electronics MAX1143 Manual do Utilizador descarregar pdf (Página 7)

MAX1142/MAX1143

14-Bit ADC, 200ksps, +5V Single-Supply

with Reference

_______________________________________________________________________________________

100

110

120

0.1 1 10 100

SFDR PLOT

MAX1142/3 toc10

FREQUENCY (kHz)

AMPLITUDE (dB)

SAMPLE

= 200kHz

MAX1142/3 toc11

-20

-10

-30

-40

-60

-50

-90

-80

-70

-100

-110

0.1 1 10 100

THD PLOT

FREQUENCY (kHz)

AMPLITUDE (dB)

SAMPLE

= 200kHz

Typical Operating Characteristics (continued)

(MAX1142/MAX1143, AV

= DV

= +5V , f

SCLK

= 4.8MHz, external clock (50% duty cycle), 24-clocks/conversion (200ksps), bipo-

lar input, external REF = +4.096V, 0.22µF bypassing on REFADJ, 2.2µF on REF, 1µF on CREF, T

= 25°C, unless otherwise noted.)

1.010

1.005

0.995

0.990

-40 400 60-20 20 80

NORMALIZED REF VOLTAGE

vs. TEMPERATURE

MAX1142/3 toc07

TEMPERATURE (°C)

NORMALIZED REF VOLTAGE

-120

-110

-80

-40

-60

-20

0 189 27 36 45 54 63 72 81 90 99

FFT PLOT

MAX1142/3 toc08

FREQUENCY (kHz)

AMPLITUDE (dB)

SAMPLE

= 200kHz

= 5kHz

MAX1142/3 toc09

100

0.1 1 10 100

SINAD PLOT

FREQUENCY (kHz)

AMPLITUDE (dB)

SAMPLE

= 200kHz

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

MAX1142/MAX1143 1
SSOP.EPS 20

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