Rainbow-electronics MAX1446 User Manual download pdf (Page 3)

MAX1446

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

ADC with Internal Reference

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS (continued)

= +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.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

= 7.492MHz -74

= 19.943MHz -73

Third-Harmonic Distortion HD3

= 39.9MHz (Note 1) -71

dBc

Two-Tone Intermodulation

Distortion

IMD

= 19MHz at -6.5dBFS,

= 21MHz at -6.5dBFS (Note 2)

-75 dBc

Third-Order Intermodulation

Distortion

IM3

= 19MHz at -6.5dBFS

= 21MHz at -6.5dBFS (Note 2)

-75 dBc

= +25°C -70 -64

= 7.492MHz

= T

MIN

to T

MAX

-70 -61

= +25°C -70 -64

= 19.943MHz

= T

MIN

to T

MAX

-70 -61

Total Harmonic Distortion

(First 5 Harmonics)

THD

= 39.9MHz (Note 1) -69

dBc

Small-Signal Bandwidth Input at -20dBFS, differential inputs 500 MHz

Full-Power Bandwidth FPBW Input at -0.5dBFS, differential inputs 400 MHz

Aperture Delay t

1ns

Aperture Jitter t

2 psrms

Overdrive Recovery Time For 1.5 × full-scale input 2 ns

Differential Gain ±1%

Differential Phase ±0.25 °

Output Noise IN+ = IN- = COM 0.2 LSBrms

INTERNAL REFERENCE

Reference Output Voltage REFOUT

2.048

±1%

Reference Temperature

Coefficient

REF

60 ppm/°C

Load Regulation 1.25 mV/mA

EXTERNAL REFERENCE

Positive Reference REFP V

REFIN

= +2.048V 2.012 V

Negative Reference REFN V

REFIN

= +2.048V 0.988 V

Differential Reference Voltage V

REF

REFP

- V

REFN

, V

REFIN

= +2.048V 0.98 1.024 1.07 V

REFIN Resistance R

REFIN

>50 MΩ

D IGIT A L IN PU T S ( C LK, P D , O E )

CLK

0.8 x

Input High Threshold V

PD, O E

0.8 x

D D

1 2 3 4 5 6 7 8 ... 15 16

ADC with Internal Reference 1

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Rainbow-electronics MAX1446 User Manual Page 3

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