MAX1127 datasheet(3/25 Pages) MAXIM

3 / 25 page

Quad, 12-Bit, 65Msps, 1.8V ADC with

Serial LVDS Outputs

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ELECTRICAL CHARACTERISTICS (continued)

(AVDD = 1.8V, OVDD = 1.8V, CVDD = 1.8V, GND = 0, external VREFIO = 1.24V, INTREF = AVDD, CREFIO to GND = 0.1µF,

fCLK = 65MHz (50% duty cycle), DT = 0, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

fIN = 5.3MHz at -0.5dBFS

93.3

fIN = 19.3MHz at -0.5dBFS, TA ≥ +25°C

77.5

Spurious-Free Dynamic Range

(Note 2)

SFDR

fIN = 30.3MHz at -0.5dBFS

88.9

dBc

fIN = 5.3MHz at -0.5dBFS

-91

fIN = 19.3MHz at -0.5dBFS, TA ≥ +25°C

-91

-77.5

Total Harmonic Distortion (Note 2)

THD

fIN = 30.3MHz at -0.5dBFS

-88

dBc

Intermodulation Distortion

IMD

f1 = 12.348685MHz at -6.5dBFS,

f2 = 13.650845MHz at -6.5dBFS (Note 2)

91.2

dBc

Third-Order Intermodulation

IM3

(Note 2)

95.7

dBc

Aperture Jitter

tAJ

(Note 2)

<0.4

psRMS

Aperture Delay

tAD

(Note 2)

Small-Signal Bandwidth

SSBW

Input at -20dBFS (Notes 2 and 4)

100

MHz

Full-Power Bandwidth

LSBW

Input at -0.5dBFS (Notes 2 and 4)

100

MHz

Output Noise

INP = IN_N

0.35

LSBRMS

Overdrive Recovery Time

tOR

RS = 25Ω, CS = 50pF

Clock

cycles

INTERNAL REFERENCE (INTREF = GND, bypass REFIO to GND with 0.1µF)

INTREF Internal Reference Mode

Enable Voltage

(Note 5)

0.1

INTREF Low-Leakage Current

200

µA

REFIO Output Voltage

VREFIO

1.18

1.24

1.30

Reference Temperature

Coefficient

TCREFIO

100

ppm/°C

EXTERNAL REFERENCE (INTREF = AVDD)

INTREF External Reference Mode

Enable Voltage

(Note 5)

AVDD -

0.1V

INTREF High-Leakage Current

200

µA

REFIO Input Voltage Range

1.24

REFIO Input Current

IREFIO

µA

CLOCK INPUT (CLK)

Input High Voltage

VCLKH

0.8 x

CVDD

Input Low Voltage

VCLKL

0.2 x

CVDD

Clock Duty Cycle

Clock Duty-Cycle Tolerance

±30

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