1

FEATURES

APPLICATIONS

DESCRIPTION

Reference

Timing

CLK

OVR

D[13:0]

CLK

6

DRY

VREF

VIN

VIN

TH1

5

5

S

DAC2

ADC2

ADC3

S

DAC1

ADC1

DigitalErrorCorrection

+

–

+

–

DRY

OVR

A1

TH2

A2

A3

TH3

ADS5474

14-Bit, 400-MSPS Analog-to-Digital Converter

23

• 400-MSPS Sample Rate

• TQFP-80 PowerPAD™ Package

(14 mm × 14 mm footprint)

• 14-Bit Resolution, 11.2-Bits ENOB

• Industrial Temperature Range:

• 1.4-GHz Input Bandwidth

–40°C to +85°C

• SFDR = 80 dBc at 230 MHz and 400 MSPS

• Pin-Similar/Compatible with 12-, 13-, and 14-Bit

• SNR = 69.8 dBFS at 230 MHz and 400 MSPS

Family:

• 2.2-V

ADS5463 and ADS5440/ADS5444

• LVDS-Compatible Outputs

• Total Power Dissipation: 2.5 W

• Test and Measurement Instrumentation

• Power Down Mode: 50 mW

• Software-Defined Radio

• Offset Binary Output Format

• Data Acquisition

• Output Data Transitions on the Rising and

• Power Amplifier Linearization

Falling Edges of a Half-Rate Output Clock

• Communication Instrumentation

• On-Chip Analog Buffer, Track-and-Hold, and

• Radar

Reference Circuit

The ADS5474 is a 14-bit, 400-MSPS analog-to-digital converter (ADC) that operates from both a 5-V supply and

3.3-V supply while providing LVDS-compatible digital outputs. This ADC is one of a family of 12-, 13-, and 14-bit

ADCs that operate from 210 MSPS to 500 MSPS. The ADS5474 input buffer isolates the internal switching of the

onboard track and hold (T&H) from disturbing the signal source while providing a high-impedance input. An

internal reference generator is also provided to simplify the system design.

Designed with a 1.4-GHz input bandwidth for the conversion of wide-bandwidth signals that exceed 400 MHz of

input frequency at 400 MSPS, the ADS5474 has outstanding low-noise performance and spurious-free dynamic

range over a large input frequency range.

The ADS5474 is available in an TQFP-80 PowerPAD package. The device is built on Texas Instruments

complementary bipolar process (BiCom3) and is specified over the full industrial temperature range (–40°C to

+85°C).

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.

3

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2007–2008, 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.