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Electrical characteristics (continued) – Rainbow Electronics MAX1449 User Manual

Page 3

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MAX1449

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

ADC with Internal Reference

_______________________________________________________________________________________

3

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

f

IN

= 7.5MHz

-72

f

IN

= 20MHz

-72

Third-Harmonic Distortion
(Note 1)

HD3

f

IN

= 50MHz

-70

dBc

Intermodulation Distortion (First 5
Odd-Order IMDs) (Note 2)

IMD

f

1

= 38MHz at -6.5dB FS

f

2

= 42MHz at -6.5dB FS

-76

dBc

Third-Order Intermodulation
Distortion (Note 2)

IM3

f

1

= 38MHz at -6.5dB FS

f

2

= 42MHz at -6.5dB FS

-76

dBc

f

IN

= 7.5MHz, T

A

= +25

°C

-70

-61.5

f

IN

= 20MHz, T

A

= +25

°C

-70

-61.5

dBc

Total Harmonic Distortion
(First 5 Harmonics)
(Note 1)

THD

f

IN

= 50MHz

-70

Small-Signal Bandwidth

Input at -20dB FS, differential inputs

500

MHz

Full-Power Bandwidth

FPBW

Input at -0.5dB FS, differential inputs

400

MHz

Aperture Delay

t

AD

1

ns

Aperture Jitter

t

AJ

2

ps

RMS

Overdrive Recovery Time

For 1.5 x full-scale input

2

ns

Differential Gain

±1

%

Differential Phase

±0.25

degree

Output Noise

IN+ = IN- = COM

0.2

LS B

RM S

INTERNAL REFERENCE

Reference Output Voltage

REFOUT

2.048

±1%

V

Reference Temperature
Coefficient

TC

REF

60

ppm/

°C

Load Regulation

1.25

mV/mA

EXTERNAL REFERENCE

Positive Reference

REFP

V

REFIN

= +2.048V

2.162

V

Negative Reference

REFN

V

REFIN

= +2.048V

1.138

V

Differential Reference Voltage

∆V

REF

V

REFP

-V

REFN

, V

REFIN

= +2.048V

0.98

1.024

1.07

V

REFIN Resistance

R

REFIN

>50

M

DIGITAL INPUTS (CLK, PD,

OE)

CLK

0.8 x

V

DD

Input High Threshold

V

IH

PD,

OE

0.8 x

V

DD

V

CLK

0.2 x

V

DD

Input Low Threshold

V

IL

PD,

OE

0.2 x

V

DD

V

ELECTRICAL CHARACTERISTICS (continued)

(V

DD

= +3.3V, OV

DD

= +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 10k

Ω resistor, V

IN

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

L

≈ 10pF at digital outputs, f

CLK

=

105MHz, T

A

= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at T

A =

+25°C.)