Rainbow-electronics MAX1446 Bedienungsanleitung PDF herunterladen (Seite 2)

MAX1446

10-Bit, 60Msps, +3.0V, Low-Power

ADC with Internal Reference

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

= +3.0V, OV

= +2.7V; 0.1µF and 1.0µF capacitors from REFP, REFN, and COM to GND; V

REFIN

= +2.048V, REFOUT con-

nected to REFIN through a 10kΩ resistor, V

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

≈ 10pF at digital outputs, f

CLK

62.5MHz (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

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

= 7.492MHz ±0.6 ±1.9 LSB

Differential Nonlinearity DNL No missing codes, f

= 7.492MHz ±0.4 ±1.0 LSB

Offset Error <±0.1 ±1.7 % FS

Gain Error 0 ±2.0 % 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 33 kΩ

Input Capacitance C

5pF

CONVERSION RATE

Maximum Clock Frequency f

CLK

60 MHz

Data Latency 5.5 Cycles

DYNAMIC CHARACTERISTICS (f

CLK

= 62.5MHz, 4096 point FFT)

= 7.492MHz 57.2 59.5

= 19.943MHz 57 59.5Signal-to-Noise Ratio SNR

= 39.9MHz (Note 1) 59

= 7.492MHz 57 59.4

= 19.943MHz 56.7 59

Signal-to-Noise Plus Distortion

(up to 5th Harmonic)

SINAD

= 39.9MHz (Note 1) 58.5

= +25°C6574

= 7.492MHz

= T

MIN

to T

MAX

62 74

= +25°C6573

= 19.943MHz

= T

MIN

to T

MAX

62 73

Spurious-Free Dynamic

Range

SFDR

= 39.9MHz (Note 1) 71

dBc

1 2 3 4 5 6 7 ... 15 16

ADC with Internal Reference 1

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