Rainbow-electronics MAX1448 Uživatelský manuál stáhnout pdf (Strana 2)

MAX1448

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

ADC with Internal Reference

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

= +3.0V, OV

= +2.0V; 0.1µF and 1.0µF capacitors from REFP, REFN, and COM to GND; V

REFIN

= +2.048V, REFOUT

connected to REFIN through a 10kΩ resistor, V

= 2Vp-p (differential with respect to COM), C

≈ 15pF at digital outputs (Note 5),

CLK

= 83.3MHz (50% duty cycle), T

= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at T

+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.

, OV

to GND ...............................................-0.3V to +3.6V

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

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

REFIN, REFOUT, REFP,

REFN, and COM to GND..........................-0.3V to (V

+ 0.3V)

OE, PD, CLK to GND..................................-0.3V to (V

+ 0.3V)

D9–D0 to GND.........................................-0.3V to (OV

+ 0.3V)

Continuous Power Dissipation (T

= +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 10 Bits

Integral Nonlinearity INL f

= 7.47MHz ±0.7 ±2.2 LSB

Differential Nonlinearity DNL f

= 7.47M H z, no m i ssi ng cod es g uar anteed ±0.4 ±1.0 LSB

Offset Error <±1 ±1.7 %FS

Gain Error 0 ±2%FS

ANALOG INPUT

Input Differential Range V

DIFF

Differential or single-ended inputs ±1.0 V

Common-Mode Voltage Range V

COM

± 0.5

Input Resistance R

Switched capacitor load 25 kΩ

Input Capacitance C

5pF

CONVERSION RATE

Maximum Clock Frequency f

CLK

80 MHz

Data Latency 5.5 Cycles

DYNAMIC CHARACTERISTICS (f

CLK

= 83.3MHz, 4096-point FFT)

= 7.47MHz 56.5 59.1

= 20MHz 56 59Signal-to-Noise Ratio SNR

= 39.9MHz (Note 1) 58.5

= 7.47MHz 55.8 59

= 20MHz 55.3 58.8

Signal-to-Noise Plus Distortion

(up to 5th harmonic)

SINAD

= 39.9MHz (Note 1) 58

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

ADC with Internal Reference 1

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