Texas Instruments introduces the lowest power 250-MSPS, 14-bit ADC
November 30 2009 - 8:00AM
PR Newswire (US)
New data converter uses 30 percent less power in software defined
radios, test and measurement, and wireless communications systems
DALLAS, Nov. 30 /PRNewswire/ -- Texas Instruments Incorporated (TI)
(NYSE: TXN) today introduced the first in a new class of high-speed
analog-to-digital converters (ADCs) delivering ultra-low power
consumption and excellent dynamic performance across wide signal
bandwidths from DC up to 550 MHz. At the maximum sample rate of 250
mega samples per second (MSPS), the 14-bit ADS4149 consumes 30
percent less power, while delivering 3-dB greater signal-to-noise
ratio (SNR) than the nearest low-power ADC. This combination of
power and performance enables greater efficiency and density while
enhancing range and sensitivity in defense, test and measurement,
and communications applications. For more information and to order
samples, visit http://www.ti.com/ads4149-pr "Designers of
wide-bandwidth applications are challenged to deliver smaller, more
portable systems with increased efficiency, while still meeting the
highest performance specifications," said Art George, senior vice
president of TI's High-Performance Analog business unit. "This new
class of ADCs sets low power benchmarks and allows designers to
create denser and more compact systems that extend battery life in
radios and test equipment." Key features and benefits of the
ADS4149 -- ADS4149 consumes as little as 275 mW per channel at 250
MSPS, while offering 72.5-dB SNR at 100-MHz input frequency.
Dynamic power scaling reduces power consumption to 215 mW at 160
MSPS. -- Optional buffered analog input provides constant input
impedance across time and frequency and eliminates sample-and-hold
kickback, simplifying input matching for passive and active analog
front ends, while reducing pass band ripple. -- A 1- to 6-dB
programmable gain option gives customers flexibility to trade off
between SNR and spurious free dynamic range (SFDR) with lowered
input voltage swing. -- ADS4149 family includes pin-compatible 12-
and 14-bit options at 160 and 250 MSPS and buffered devices to
enable customers to easily move to lower resolutions and samples
rates without altering their core design. -- Migration path from
the ADS6149 allows customers to shift to lower power options. --
TI's TSW1200 digital capture tool facilitates rapid analysis of the
ADS4149 evaluation module (EVM). Available high-speed mezzanine
connector (HSMC) and FPGA mezzanine connector (FMC) allow ADS4149
EVMs to mate to FPGA EVMs for system-level prototyping to speed
development time. Customers can further speed time-to-market with a
complete signal chain for software defined radio and test
equipment: dual, 16-bit, 1-GSPS digital-to-analog converter (DAC)
(DAC5682Z); wideband, fully differential amplifier (THS4509);
programmable digital up and down converter (GC5016); digital
pre-distortion solution with crest factor reduction (GC5325);
direct quadrature modulator (TRF3703); frequency synthesizer
(TRF3761); low-jitter clock generator and synchronizer (CDCE62005,
CDCE72010); and high-performance digital signal processors (DSP)
(TMS320C6472). Availability and packaging The ADS4149 and companion
single configuration parts are available today in a 48-pin QFN
package. The ADS4149 is priced at $89 in 1,000-unit quantities.
Multi-channel options will be available in 1H2010. Find out more
about TI's data converters at the links below: -- ADS4149
evaluation modules and samples: http://www.ti.com/ads4149-pr --
ADS4149 video demonstration: http://www.ti.com/ads4149-prv -- HSMC
and FMC interposer cards: http://www.ti.com/hsmcadc-pr and
http://www.ti.com/fmcadc-pr About Texas Instruments Texas
Instruments (NYSE:TXN) helps customers solve problems and develop
new electronics that make the world smarter, healthier, safer,
greener and more fun. A global semiconductor company, TI innovates
through manufacturing, design and sales operations in more than 30
countries. For more information, go to http://www.ti.com/
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