REFERENCE

INP

INN

CLKINP

CLKINN

SCLK

SDIO

SDO

CLKOUTAP

CLKOUTAN

OUTB[0-11]P

OUTB[0-11]N

ADS

BLOCKDIAGRAM

5400

CLOCK

DIVIDE

12-bit ADC

(3 stagepipeline)

VCM

VREF

OVERRANGE

DETECTOR,

SYNCand

DEMUX

12

OUTA [0-11]P

OUTA[0-11]N

12

12

OVRBP (SYNCOUTBP)

OVRBN (SYNCOUTBN)

RESETP (SYNCINP)

RESETN (SYNCINN)

SDENB

BUFFER

CLKOUTBP

CLKOUTBN

OVRAP (SYNCOUTAP )

OVRAN (SYNCOUTAN)

ENEXTREF

ENPWD

ENA1BUS

CONTROL

TEMP SENSOR

OFFSET ADJUST

PHASE ADJUST

GAIN ADJUST

BUS A

BUSB

ADS5400

www.ti.com

SLAS611B – OCT 2009 – REVISED MARCH 2010

12-Bit, 1-GSPS Analog-to-Digital Converter

Check for Samples: ADS5400

1

FEATURES

•

On-Chip Analog Buffer

23

•

1-GSPS Sample Rate

•

100-Pin TQFP PowerPAD™ Package

(16-mm × 16-mm Footprint With Leads)

•

12-Bit Resolution

•

Industrial Temperature Range = –40°C to 85°C

•

2.1 GHz Input Bandwidth

•

SFDR = 66 dBc at 1.2 GHz

APPLICATIONS

•

SNR = 57.6 dBFS at 1.2 GHz

•

Test and Measurement Instrumentation

•

7 Clock Cycle Latency

•

Ultra-Wide Band Software-Defined Radio

•

Interleave Friendly: Internal Adjustments for

•

Data Acquisition

Gain, Phase, and Offset

•

Power Amplifier Linearization

•

1.5V to 2V Selectable Full-Scale Range

•

Signal Intelligence and Jamming

•

LVDS-Compatible Outputs, 1 or 2 Bus Options

•

Radar

•

Total Power Dissipation: 2.15 W

DESCRIPTION

The ADS5400 is a 12-bit, 1-GSPS analog-to-digital converter (ADC) that operates from both a 5-V supply and

3.3-V supply, while providing LVDS-compatible digital outputs. The analog input buffer isolates the internal

switching of the track and hold from disturbing the signal source. The simple 3-stage pipeline provides extremely

low latency for time critical applications. Designed for the conversion of signals up to 2 GHz of input frequency at

1 GSPS, the ADS5400 has outstanding low noise performance and spurious-free dynamic range over a large

input frequency range.

The ADS5400 is available in a TQFP-100 PowerPAD™ package. The combination of the PowerPAD package

and moderate power consumption of the ADS5400 allows for operation without an external heatsink. The

ADS5400 is built on Texas Instrument's 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 © 2009–2010, 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.