Rainbow-electronics MAX1427 Manuel d'utilisateur télécharger pdf (Page 2)

MAX1427

15-Bit, 80Msps ADC with -79.3dBFS

Noise Floor for Baseband Applications

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(AV

= 5V, DV

= DRV

= 2.5V, GND = 0, INP and INN driven differentially with -1dBFS, CLKP and CLKN driven differentially

with a 2V

P-P

sinusoidal input signal, C

= 5pF at digital outputs, f

CLK

= 80MHz, T

= T

MIN

to T

MAX

, unless otherwise noted. Typical

values are at T

= +25°C, unless otherwise noted. ≥+25°C guaranteed by production test, <+25°C guaranteed by design and char-

acterization.)

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.

, DV

, DRV

to GND.................................. -0.3V to +6V

INP, INN, CLKP, CLKN, CM to GND........-0.3V to (AV

+ 0.3V)

D0–D14, DAV, DOR to GND..................-0.3V to (DRV

+ 0.3V)

Continuous Power Dissipation (T

= +70°C)

56-Pin Thin QFN (derate 47.6mW/°C above +70°C)................

3809.5mW

Operating Temperature Range ...........................-40°C to +85°C

Thermal Resistance

...................................................21°C/W

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

Storage Temperature Range .............................-60°C to +150°C

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

DC ACCURACY

Resolution 15 Bits

Integral Nonlinearity INL f

= 15MHz

±1.5

LSB

Differential Nonlinearity DNL f

= 15MHz, no missing codes guaranteed

±0.4

LSB

Offset Error -12

+12

Gain Error -4 +4

%FS

ANALOG INPUT (INP, INN)

D i ffer enti al Inp ut V ol tag e Rang e

DIFF

Fully differential inputs drive, V

DIFF

= V

INP

- V

INN

2.56

P-P

Common-Mode Input Voltage

Self-biased

3.38

Differential Input Resistance R

±15%

kΩ

Differential Input Capacitance

1pF

Full-Power Analog Bandwidth

FPBW

-1dB

-1dB rolloff for a full-scale input

200

MHz

CONVERSION RATE

Maximum Clock Frequency f

CLK

MHz

Minimum Clock Frequency f

CLK

MHz

Aperture Jitter t

0.21

RMS

CLOCK INPUT (CLKP, CLKN)

Full-Scale Differential Input

Voltage

DIFFCLK

0.5 to

3.0

Common-Mode Input Voltage

Self-biased 2.4 V

Differential Input Resistance R

INCLK

±15%

kΩ

Differential Input Capacitance

INCLK

1pF

DYNAMIC CHARACTERISTICS

Thermal + Quantization

Noise Floor

NF Analog input <-35dBFS

-79.3

dBFS

= 5MHz at -1dBFS

76.5

= 15MHz at -1dBFS

73.5 76.1

Signal-to-Noise Ratio (Note 1)

SNR

= 35MHz at -1dBFS

75.6

1 2 3 4 5 6 7 ... 17 18

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Rainbow-electronics MAX1427 Manuel d'utilisateur Page 2

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