MAX1421 datasheet(7/17 Pages) MAXIM

7 / 17 page

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

with Internal Reference

Typical Operating Characteristics (continued)

(VAVDD = VDVDD = +3.3V, AGND = DGND = 0, VIN = ±1.024V, differential input voltage, fCLK = 40MHz (50% duty cycle), digital output

load CL = 10pF, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)

-40

-15

SPURIOUS-FREE DYNAMIC RANGE

vs. TEMPERATURE

TEMPERATURE (

°C)

fIN = 5.51502MHz

-1

-2

2048

1024

3072

4096

INTEGRAL NONLINEARITY

vs. DIGITAL OUTPUT CODE

DIGITAL OUTPUT CODE

0.50

0.25

-0.25

-0.50

2048

1024

3072

4096

DIFFERENTIAL NONLINEARITY

vs. DIGITAL OUTPUT CODE

DIGITAL OUTPUT CODE

-40

-15

356085

ANALOG SUPPLY CURRENT

vs. TEMPERATURE

TEMPERATURE (

°C)

-40

-15

356085

DIGITAL SUPPLY CURRENT

vs. TEMPERATURE

TEMPERATURE (

°C)

≈ 10pF

-40

-15

SIGNAL-TO-NOISE PLUS DISTORTION

vs. TEMPERATURE

TEMPERATURE (

°C)

fIN = 5.51502MHz

0.50

0.25

-0.25

-0.50

-40

-15

GAIN ERROR vs. TEMPERATURE, EXTERNAL

REFERENCE (VREFIN = +2.048V)

TEMPERATURE (

°C)

-40

-15

SIGNAL-TO-NOISE RATIO

vs. TEMPERATURE

TEMPERATURE (

°C)

fIN = 5.51502MHz

-80

-78

-74

-76

-72

-70

-40

-15

TOTAL HARMONIC DISTORTION

vs. TEMPERATURE

TEMPERATURE (

°C)

fIN = 5.51502MHz

________________________________________________________________________________________

-1

-2

02048

1024

3072

4096

INTEGRAL NONLINEARITY

vs. DIGITAL OUTPUT CODE

DIGITAL OUTPUT CODE

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