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Reference

Timing

CLK

OVR

D[12:0]

CLK

5

DRY

VREF

AIN

AIN

TH1

5

5

Σ

DAC2

ADC2

ADC3

Σ

DAC1

ADC1

AVDD

DVDD

GND

Digital Error Correction

+

−

+

−

B0061-01

DRY

OVR

A1

TH2

A2

A3

TH3

ADS5444

SLWS162A – AUGUST 2005 – REVISED FEBRUARY 2006

13-BIT 250 MSPS ANALOG-TO-DIGITAL CONVERTER

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Test and Measurement

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13-Bit Resolution

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Software-Defined Radio

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250 MSPS Sample Rate

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Multi-channel Basestation Receivers

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SNR = 69 dBc at 100-MHz IF and 250 MSPS

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Basestation Tx Digital Predistortion

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SFDR = 76 dBc at 100-MHz IF and 250 MSPS

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Communications Instrumentation

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SNR = 67.7 dBc at 230-MHz IF and 250 MSPS

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SFDR = 77 dBc at 230-MHz IF and 250 MSPS

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2.2 VPP Differential Input Voltage

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ADS5424 - 14-bit, 105 MSPS ADC

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Fully Buffered Analog Inputs

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ADS5423 - 14-bit, 80 MSPS ADC

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5 V Analog Supply Voltage

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ADS5440 - 13-bit, 210 MSPS ADC

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LVDS Compatible Outputs

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Total Power Dissipation: 2 W

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Offset Binary Output Format

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TQFP-80 PowerPAD™ Package

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Pin Compatible with the ADS5440

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

The ADS5444 is a 13-bit 250 MSPS analog-to-digital converter (ADC) that operates from a 5 V supply, while

providing LVDS-compatible digital outputs from a 3.3 V supply. The ADS5444 input buffer isolates the internal

switching of the onboard track and hold (T&H) from disturbing the signal source. An internal reference generator

is also provided to further simplify the system design. The ADS5444 has outstanding low noise and linearity over

input frequency.

The ADS5444 is available in an 80-pin TQFP PowerPAD™ package. The ADS5444 is built on a state of the art

Texas Instruments complementary bipolar process (BiCom3X) and is specified over the full industrial

temperature range (–40°C to 85°C).

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.

PowerPAD is a trademark of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Copyright © 2005–2006, 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.