MAX1449 datasheet(2/18 Pages) MAXIM

2 / 18 page

10-Bit, 105Msps, Single +3.3V, Low-Power

ADC with Internal Reference

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VDD = +3.3V, OVDD = +2.0V; 0.1µF and 1.0µF capacitors from REFP, REFN, and COM to GND; VREFIN = +2.048V, REFOUT

connected to REFIN through a 10k

Ω resistor, VIN = 2Vp-p (differential with respect to COM), CL ≈ 10pF at digital outputs, fCLK =

105MHz, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°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.

VDD, OVDD to GND ...............................................-0.3V to +3.6V

OGND to GND.......................................................-0.3V to +0.3V

IN+, IN- to GND........................................................-0.3V to VDD

REFIN, REFOUT, REFP,

REFN, and COM to GND..........................-0.3V to (VDD + 0.3V)

OE, PD, CLK to GND..................................-0.3V to (VDD + 0.3V)

D9–D0 to GND.........................................-0.3V to (OVDD + 0.3V)

Continuous Power Dissipation (TA = +70°C)

32-Pin TQFP (derate 11.1mW/°C above +70°C)...........889mW

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

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

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

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

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

DC ACCURACY

Resolution

Bits

Integral Nonlinearity

INL

fIN = 7.5MHz

±0.75

±2.4

LSB

Differential Nonlinearity

DNL

fIN = 7.5MHz, no missing codes guaranteed

±0.5

±1.0

LSB

Offset Error

±1

±1.7

% FS

Gain Error

±2% FS

ANALOG INPUT

Input Differential Range

VDIFF

Differential or single-ended inputs

±1.0

Common-Mode

Voltage Range

VCOM

VDD/2

± 0.5

Input Resistance

RIN

Switched capacitor load

Ω

Input Capacitance

CIN

5pF

CONVERSION RATE

Maximum Clock Frequency

fCLK

105

MHz

Data Latency

5.5

Cycles

DYNAMIC CHARACTERISTICS (fCLK = 105.26MHz, 4096-point FFT)

fIN = 7.5MHz

56.3

58.5

fIN = 20MHz

55.8

58.5

Signal-To-Noise Ratio

(Note 1)

SNR

fIN = 50MHz

fIN = 7.5MHz

55.3

58.2

fIN = 20MHz

55.1

58.1

Signal-To-Noise And Distortion

(Up to 5

th Harmonic) (Note 1)

SINAD

fIN = 50MHz

57.6

fIN = 7.5MHz

fIN = 20MHz, TA = +25

°C

dBc

Spurious-Free Dynamic

Range (Note 1)

SFDR

fIN = 50MHz

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