MAX1124 Maxim Integrated Products, MAX1124 Datasheet

MAX1124

Manufacturer Part Number

MAX1124

Description

250Msps Analog-to-Digital Converter

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX1124.pdf (17 pages)

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The MAX1124 is a monolithic 10-bit, 250Msps analog-

to-digital converter (ADC) optimized for outstanding

dynamic performance at high IF frequencies up to

500MHz. The product operates with conversion rates of

up to 250Msps while consuming only 477mW.

At 250Msps and an input frequency of 100MHz, the

MAX1124 achieves a spurious-free dynamic range

(SFDR) of 71dBc. Its excellent signal-to-noise ratio

(SNR) of 57.1dB at 10MHz remains flat (within 1dB) for

input tones up to 500MHz. This makes the MAX1124

ideal for wideband applications such as digital predis-

tortion in cellular base-station transceiver systems.

The MAX1124 requires a single 1.8V supply. The ana-

log input is designed for either differential or single-

ended operation and can be AC- or DC-coupled. The

ADC also features a selectable on-chip divide-by-2

clock circuit, which allows the user to apply clock fre-

quencies as high as 500MHz. This helps to reduce the

phase noise of the input clock source. A differential

LVDS sampling clock is recommended for best perfor-

mance. The converter’s digital outputs are LVDS com-

patible, and the data format can be selected to be

either two’s complement or offset binary.

The MAX1124 is available in a 68-pin QFN with

exposed paddle (EP) and is specified over the industri-

al (-40°C to +85°C) temperature range.

For pin-compatible, lower speed versions of the

MAX1124, refer to the MAX1122 (170Msps) and the

MAX1123 (210Msps) data sheets. For a pin-compatible

8-bit version of the MAX1124, refer to the MAX1121

data sheet.

19-3029; Rev 1; 2/04

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

1.8V, 10-Bit, 250Msps Analog-to-Digital Converter

Wireless and Wired Broadband Communication

Cable-Head End Systems

Digital Predistortion Receivers

Communications Test Equipment

Radar and Satellite Subsystems Antenna Array

Processing

with LVDS Outputs for Wideband Applications

________________________________________________________________ Maxim Integrated Products

General Description

Applications

*EP = Exposed paddle.

MAX1124EGK

REFADJ

CLKDIV

AGND

REFIO

AGND

250Msps Conversion Rate

SNR = 56.8dB/55.5dB at f

SFDR = 71dBc/63.8dBc at f

NPR = 54.8dB at f

Single 1.8V Supply

477mW Power Dissipation at 250Msps

On-Chip Track-and-Hold and Internal Reference

On-Chip Selectable Divide-by-2 Clock Input

LVDS Digital Outputs with Data Clock Output

Evaluation Kit Available (Order MAX1124EVKIT)

INN

INP

TOP VIEW

PART

-40 C to +85 C

TEMP RANGE

NOTCH

Ordering Information

MAX1124

Pin Configuration

= 28.8MHz

= 100MHz/500MHz

www.DataSheet4U.com

PIN-PACKAGE

68 QFN-EP*

Features

D6P

D6N

D5P

D5N

D4P

D4N

OGND

DCLKP

D3N

D1P

DCLKN

D3P

D2P

D2N

D1N

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