1

FEATURES

DESCRIPTION

APPLICATIONS

12-Bit

ADC

PLL

Serializer

1xADCLK

6xADCLK

IN1

P

IN1

N

OUT1

P

OUT1

N

LCLK

P

LCLK

N

ADCLK

P

ADCLK

N

12xADCLK

12-Bit

ADC

Serializer

Digital

Digital

Reference

IN8

P

IN8

N

OUT8

P

OUT8

N

Registers

ADC

Control

Clock

Buffer

Power-

Down

Channels

2to7

ADS5281

ADS5282

SBAS397H – DECEMBER 2006 – REVISED MARCH 2008

www.ti.com

12-Bit Octal-Channel ADC Family Up to 65MSPS

234

• Speed and Resolution Grades:

The ADS528x is a family of high-performance,

low-power, octal channel analog-to-digital converters

–

ADS5281: 12-bit, 50MSPS

(ADCs). Available in either a 9mm

× 9mm QFN

–

ADS5282: 12-bit, 65MSPS

package or an HTQFP-80 package, with serialized

• Power Dissipation:

low-voltage differential signaling (LVDS) outputs and

–

48mW/Channel at 30MSPS

a

wide

variety

of

programmable

features,

the

ADS528x is highly customizable for a diversity of

–

55mW/Channel at 40MSPS

applications and offers an unprecedented level of

–

64mW/Channel at 50MSPS

system integration. An application note, XAPP774

–

77mW/Channel at 65MSPS

(available at www.xilinx.com), describes how to

interface the serial LVDS outputs of TI's ADCs to

• 70dBFS SNR at 10MHz IF

• Analog Input Full-Scale Range: 2V

PP

ADS528x family is specified over the industrial

• Low-Frequency Noise Suppression Mode

temperature range of –40

°C to +85°C.

• 6dB Overload Recovery In One Clock

• External and Internal (Trimmed) Reference

• 3.3V Analog Supply, 1.8V Digital Supply

• Single-Ended or Differential Clock:

–

Clock Duty Cycle Correction Circuit (DCC)

• Programmable Digital Gain: 0dB to 12dB

• Serialized DDR LVDS Output

• Programmable LVDS Current Drive, Internal

Termination

• Test Patterns for Enabling Output Capture

• Straight Offset Binary or Two's Complement

Output

• Package Options:

–

9mm

× 9mm QFN-64

–

HTQFP-80 PowerPAD™ Compatible with

ADS527x Family

• Medical Imaging

• Wireless Base-Station Infrastructure

• Test and Measurement Instrumentation

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

PowerPAD is a trademark of Texas Instruments, Inc.

3

Xilinx is a registered trademark of Xilinx, Inc.

4

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2006–2008, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.