Rainbow-electronics MAX1421 Manual do Utilizador descarregar pdf (Página 7)

MAX1421

12-Bit, 40Msps, +3.3V, Low-Power ADC

with Internal Reference

Typical Operating Characteristics (continued)

AVDD

= V

DVDD

= +3.3V, AGND = DGND = 0, V

= ±1.024V, differential input voltage, f

CLK

= 40MHz (50% duty cycle), digital output

load C

= 10pF, T

= T

MIN

to T

MAX,

unless otherwise noted. Typical values are at T

= +25°C.)

-40 10-15 35 60 85

SPURIOUS-FREE DYNAMIC RANGE

vs. TEMPERATURE

MAX1421 toc13

TEMPERATURE (°C)

SFDR (dBc)

= 5.51502MHz

-1

-2

0 20481024 3072 4096

INTEGRAL NONLINEARITY

vs. DIGITAL OUTPUT CODE

MAX1421 toc17

DIGITAL OUTPUT CODE

INL (LSB)

0.50

0.25

-0.25

-0.50

0 20481024 3072 4096

DIFFERENTIAL NONLINEARITY

vs. DIGITAL OUTPUT CODE

MAX1421 toc18

DIGITAL OUTPUT CODE

DNL (LSB)

-40 10-15 356085

ANALOG SUPPLY CURRENT

vs. TEMPERATURE

MAX1421 toc20

TEMPERATURE (°C)

AVDD

(mA)

-40 10-15 356085

DIGITAL SUPPLY CURRENT

vs. TEMPERATURE

MAX1421 toc21

TEMPERATURE (°C)

AVDD

(mA)

≈ 10pF

-40 10-15 35 60 85

SIGNAL-TO-NOISE PLUS DISTORTION

vs. TEMPERATURE

MAX1421 toc16

TEMPERATURE (°C)

SINAD (dB)

= 5.51502MHz

0.50

0.25

-0.25

-0.50

-40 10-15 35 60 85

GAIN ERROR vs. TEMPERATURE, EXTERNAL

REFERENCE (V

REFIN

= +2.048V)

MAX1421 toc19

TEMPERATURE (°C)

GAIN ERROR (%FSR)

-40 10-15 35 60 85

SIGNAL-TO-NOISE RATIO

vs. TEMPERATURE

TEMPERATURE (°C)

SNR (dB)

= 5.51502MHz

MAX1421 toc14

-80

-78

-74

-76

-72

-70

-40 10-15 35 60 85

TOTAL HARMONIC DISTORTION

vs. TEMPERATURE

MAX1421 toc15

TEMPERATURE (°C)

THD (dB)

= 5.51502MHz

________________________________________________________________________________________ 7

-1

-2

020481024 3072 4096

INTEGRAL NONLINEARITY

vs. DIGITAL OUTPUT CODE

MAX1421 toc17

DIGITAL OUTPUT CODE

INL (LSB)

1 2 3 4 5 6 7 8 9 10 11 12 ... 16 17

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