Rainbow-electronics MAX1448 Manual do Utilizador descarregar pdf (Página 7)

MAX1448

10-Bit, 80Msps, Single +3.0V, Low-Power

ADC with Internal Reference

_______________________________________________________________________________________ 7

-80

-76

-68

-72

-64

-60

-40 10-15 35 60 85

TOTAL HARMONIC DISTORTION

vs. TEMPERATURE

MAX1448-19

TEMPERATURE (°C)

THD (dBc)

= 20MHz

-40 10-15 35 60 85

SIGNAL-TO-NOISE PLUS DISTORTION

vs. TEMPERATURE

MAX1448-20

TEMPERATURE (°C)

SINAD (dB)

= 20MHz

-0.6

-0.2

-0.4

0.2

0.6

0.4

0.8

0 400 600200 800 1000 1200

INTEGRAL NONLINEARITY

vs. DIGITAL OUTPUT CODE

(BEST STRAIGHT LINE)

MAX1448-21

DIGITAL OUTPUT CODE

INL (LSB)

-0.4

-0.3

-0.2

-0.1

0.1

0.2

0.3

0.4

0400200 600 800 1000 1200

DIFFERENTIAL NONLINEARITY

vs. DIGITAL OUTPUT CODE

MAX1448-22

DIGITAL OUTPUT CODE

DNL (LSB)

-0.05

-0.02

-0.03

-0.04

-0.01

0.01

0.02

0.03

0.04

0.05

-40 10-15 35 60 85

GAIN ERROR vs. TEMPERATURE

EXTERNAL REFERENCE (V

REFIN

= +2.048V)

MAX1448-23

TEMPERATURE (°C)

GAIN ERROR (LSB)

-3

-1

-2

-40 10-15 35 60 85

OFFSET ERROR vs. TEMPERATURE,

EXTERNAL REFERENCE (V

REFIN

= +2.048V)

MAX1448-24

TEMPERATURE (°C)

OFFSET ERROR (LSB)

Typical Operating Characteristics (continued)

= +3.0V, OV

= +2.7V, internal reference, differential input at -0.5dB FS, f

CLK

= 83.3MHz, C

≈ 10pF, T

= +25°C, unless oth-

erwise noted.)

-40 10-15 35 60 85

ANALOG SUPPLY CURRENT

vs. TEMPERATURE

MAX1448-26

TEMPERATURE (°C)

VDD

(mA)

1.6 2.42.0 2.8 3.2 3.6

DIGITAL SUPPLY CURRENT

vs. DIGITAL SUPPLY VOLTAGE

MAX1448-27

(V)

OVDD

(mA)

= 7.5MHz

2.70 3.002.85 3.15 3.30 3.45 3.60

ANALOG SUPPLY CURRENT

vs. ANALOG SUPPLY VOLTAGE

MAX1448-25

(V)

VDD

(mA)

1 2 3 4 5 6 7 8 9 10 11 12 ... 17 18

ADC with Internal Reference 1

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