MAX1121EGK datasheet(2/17 Pages) MAXIM

Part #	MAX1121EGK

Description	1.8V, 8-Bit, 250Msps Analog-to-Digital Converter with LVDS Outputs for Wideband Applications

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Manufacturer	MAXIM [Maxim Integrated Products]

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1.8V, 8-Bit, 250Msps Analog-to-Digital Converter

with LVDS Outputs for Wideband Applications

2

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

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.

AVCC to AGND ......................................................-0.3V to +2.1V

OVCC to OGND .....................................................-0.3V to +2.1V

AVCC to OVCC .......................................................-0.3V to +2.1V

AGND to OGND ....................................................-0.3V to +0.3V

Analog Inputs to AGND ...........................-0.3V to (AVCC + 0.3V)

Digital Inputs to AGND.............................-0.3V to (AVCC + 0.3V)

REF, REFADJ to AGND............................-0.3V to (AVCC + 0.3V)

Digital Outputs to OGND .........................-0.3V to (OVCC + 0.3V)

ESD on All Pins (Human Body Model).............................±2000V

Continuous Power Dissipation (TA = +70°C)

68-Pin QFN (derate 41.7mW/°C above +70°C) .........3333mW

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

Maximum Current into Any Pin............................................50mA

ELECTRICAL CHARACTERISTICS

(AVCC = OVCC = 1.8V, AGND = OGND = 0, fSAMPLE = 250MHz, differential sine-wave clock input drive, 0.1µF capacitor on REFIO,

internal reference, digital output pins differential RL = 100Ω ±1%, CL = 5pF, TA = TMIN to TMAX, unless otherwise noted. ≥25°C guar-

anteed by production test, <25°C guaranteed by design and characterization. Typical values are at TA = +25°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

DC ACCURACY

Resolution

8

Bits

Integral Nonlinearity

INL

(Note 1)

-0.6

±0.2

+0.6

LSB

Differential Nonlinearity

DNL

No missing codes (Note 1)

-0.9

±0.1

+0.9

LSB

Transfer Curve Offset

VOS

(Note 1)

-10

+10

LSB

Offset Temperature Drift

±20

µV/

°C

ANALOG INPUTS (INP, INN)

Full-Scale Input Voltage Range

VFS

(Note 1)

1100

1250

1375

mVP-P

Full-Scale Range Temperature

Drift

130

ppm/

°C

Common-Mode Input Range

VCM

1.38

±0.18

V

Input Capacitance

CIN

3pF

Differential Input Resistance

RIN

3.00

4.4

6.5

k

Ω

Full-Power Analog Bandwidth

FPBW

Figure 8

600

MHz

REFERENCE (REFIO, REFADJ)

Reference Output Voltage

VREFIO

1.18

1.24

1.30

V

Reference Temperature Drift

90

ppm/

°C

REFADJ Input High Voltage

VREFADJ

Used to disable the internal reference

AVCC -

0.3

V

SAMPLING CHARACTERISTICS

Maximum Sampling Rate

fSAMPLE

250

MHz

Minimum Sampling Rate

fSAMPLE

20

MHz

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