General Description

The MAX1215N is a monolithic, 12-bit, 250Msps ana-

log-to-digital converter (ADC) optimized for outstanding

dynamic performance at high-IF frequencies beyond

300MHz. The product operates with conversion rates

up to 250Msps while consuming only 886mW.

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

MAX1215N achieves an 84.7dBc spurious-free dynam-

ic range (SFDR) with e6.7dB signal-to-noise ratio (SNR)

that remains flat (within 2dB) for input tones up to

250MHz. This makes it ideal for wideband applications

such as communications receivers, cable-head end

receivers, and power-amplifier predistortion in cellular

base-station transceivers (BTS).

The MAX1215N operates from a single 1.8V power sup-

ply. The analog input is designed for AC-coupled differ-

ential or single-ended operation. The ADC also features a

selectable on-chip divide-by-2 clock circuit that accepts

clock frequencies as high as 500MHz. A low-voltage dif-

ferential signal (LVDS) sampling clock is recommended

for best performance. The converter provides LVDS-com-

patible digital outputs with data format selectable to be

either two’s complement or offset binary.

The MAX1215N is available in a 68-pin QFN package

with exposed paddle (EP) and is specified over the indus-

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

See the

Pin-Compatible Versions table for a complete

selection of 8-bit, 10-bit, and 12-bit high-speed ADCs

in this family.

Applications

Base-Station Power-Amplifier Linearization

Cable-Head End Receivers

Wireless and Wired Broadband Communications

Communications Test Equipment

Radar and Satellite Subsystems

Features

o 250Msps Conversion Rate

o Excellent Low-Noise Characteristics

o Excellent Dynamic Range

o Single 1.8V Supply

o On-Chip Track-and-Hold Amplifier

o Internal 1.25V-Bandgap Reference

o On-Chip Selectable Divide-by-2 Clock Input

o LVDS Digital Outputs with Data Clock Output

o MAX1215NEVKIT Available

1.8V, Low-Power, 12-Bit, 250Msps

ADC for Broadband Applications

________________________________________________________________

Maxim Integrated Products

1

19-0537; Rev 0; 4/06

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.

EVALUATION

KIT

AVAILABLE

Pin-Compatible Versions

PART

RESOLUTION

(BITS)

SPEED

GRADE

(Msps)

ON-CHIP

BUFFER

MAX1121

8

250

Yes

MAX1122

10

170

Yes

MAX1123

10

210

Yes

MAX1124

10

250

Yes

MAX1213

12

170

Yes

MAX1214

12

210

Yes

MAX1215

12

250

Yes

MAX1213N

12

170

No

MAX1214N

12

210

No

MAX1215N

12

250

No

Pin Configuration appears at end of data sheet.

PART

TEMP RANGE

PIN-

PACKAGE

PKG

CODE

MAX1215NEGK-D

-40

°C to +85°C 68 QFN-EP* G6800-4

MAX1215NEGK+D

-40

°C to +85°C 68 QFN-EP* G6800-4

Ordering Information

*

EP = Exposed paddle.

+

Denotes lead-free package.

D = Dry pack.