MAX1421 데이터 시트보기 (PDF) - Maxim Integrated

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MAX1421

12-Bit, 40Msps, 3.3V, Low-Power ADC with Internal Reference

Maxim Integrated 

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

with Internal Reference

ABSOLUTE MAXIMUM RATINGS

AVDD, DVDD to AGND ..............................................-0.3V to +4V

DVDD, AVDD to DGND..............................................-0.3V to +4V

DGND to AGND.....................................................-0.3V to +0.3V

INP, INN, REFP, REFN, REFIN,

CML, CLK, CLK,....................(AGND - 0.3V) to (AVDD + 0.3V)

D0–D11, OE, PD .......................(DGND - 0.3V) to (DVDD + 0.3V)

Continuous Power Dissipation (TA = +70°C)

48-Pin TQFP (derate 12.5mW/°C above +70°C)........1000mW

Maximum Junction Temperature .....................................+150°C

Operating Temperature Ranges

MAX1421CCM ...................................................0°C to +70°C

MAX1421ECM ................................................-40°C to +85°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

ELECTRICAL CHARACTERISTICS

(VAVDD = VDVDD = 3.3V, AGND = DGND = 0, VIN = ±1.024V, differential input voltage at -0.5dB FS, internal reference,

fCLK = 40MHz (50% duty cycle), digital output load CL ≈ 10pF, TA ≥ +25°C guaranteed by production test, TA < +25°C guarnateed

by design and characterization. Typical values are at TA = +25°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

DC ACCURACY

Resolution

RES

12

Bits

Differential Nonlinearity

Integral Nonlinearity

Midscale Offset

DNL

INL

MSO

TA = +25°C, no missing codes

TA = TMIN to TMAX

TA = TMIN to TMAX

-1

+1

LSB

±0.5

±2

LSB

-3

±.75

+3 %FSR

Midscale Offset Temperature

Coefficient

Gain Error

MSOTC

Internal reference (Note 1)

External reference applied to REFIN (Note 2)

GE

External reference applied to REFP, CML,

and REFN (Note 3)

3 ✕ 10-4

%/°C

-5

+0.1

+5

-5

±3

+5

%FSR

-1.5 ±0.5 +1.5

Gain-Error Temperature

Coefficient

GETC

External reference applied to REFP, CML,

and REFN (Note 3)

15 ✕ 10-6

%/°C

DYNAMIC PERFORMANCE (fCLK = 40MHz, 4096-point FFT)

Signal-to-Noise Ratio

SNR

fIN = 5MHz

fIN = 15MHz, TA = +25°C

Spurious-Free Dynamic Range

SFDR

fIN = 5MHz

fIN = 15MHz, TA = +25°C

Total Harmonic Distortion

THD

fIN = 5MHz

fIN = 15MHz, TA = +25°C

Signal-To-Noise Plus Distortion

SINAD

fIN = 5MHz

fIN = 15MHz, TA = +25°C

Effective Number of Bits

ENOB

fIN = 5MHz

fIN = 15MHz, TA = +25°C

Two-Tone Intermodulation

Distortion

IMDTT

fIN1 = 11.569MHz, fIN2 = 13.445MHz

(Note 4)

67

dB

62

66

73

dBc

64

70

-74

dBc

-69

-62

66

dB

60

63.5

10.7

Bits

60

10.3

-80

dBc

2 _______________________________________________________________________________________

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