TI introduces new analog front end with best-in-class power optimization for portable ultrasound systems

Second device in popular product family consumes more than 30 percent less
power than competition

DALLAS, July 1 /PRNewswire/ -- Texas Instruments Incorporated (TI)
(NYSE: TXN) today introduced a new fully integrated analog front end (AFE)
for portable ultrasound equipment. The second device in TI's AFE58xx family
for the medical ultrasound market, the AFE5804 is specifically designed for
ultrasound systems that require low power and small size. The eight-channel
AFE consumes more than 30 percent less power than the closest competitive
device, which will help proliferate portable systems with longer battery
life and better image quality (see http://www.ti.com/afe5804-pr).

Advanced features for portable ultrasound system designs

Featuring 102 mW/channel at 1.25 nV/rtHz at 40 MSPS, the fully
integrated AFE5804 offers best-in-class power performance while maintaining
superior image quality in portable equipment. The eight-channel device
contains a low- noise amplifier (LNA), a voltage controlled attenuator
(VCA), a programmable gain amplifier (PGA), a low-pass filter (LPF) and a
12-bit, 10 MSPS to 50 MSPS analog-to-digital converter (ADC) with LVDS data
outputs.

The gains of the LNA, VCA and PGA fine-tune the image quality being
received for processing, thus enhancing the user experience. The LNA is set
for 20 dB gain and has excellent noise and signal handling capabilities,
including a 280 mVpp input range and fast overload recovery. The gain of
the VCA can be varied over a 46 dB range with a 0-V to 1.2-V control
voltage common to all channels of the AFE5804. The PGA can be programmed
for gains of 20 dB, 25 dB, 27 dB and 30 dB. The LVDS outputs of the ADC
reduce the number of interface lines to the ASIC or FPGA, thereby enabling
the high systems integration densities desired for portable systems.

Programmable mode control for power/noise optimization

The AFE8504 features mode control to give designers the flexibility to
program the level of noise and power performance needed to optimize their
system.



Low-noise
-- 0.92 nV/rtHz (TGC-Mode I)
-- 1.25 nV/rtHz (TGC-Mode II)
-- 1.1 nV/rtHz (CW and PW mode)

Low-power
-- 112 mW/Ch (TGC-Mode I)
-- 102 mW/Ch (TGC-Mode II)
-- 105 mW/Ch (PW mode)
-- 65 mW/Ch (CW mode)

Full portfolio for easy, high-quality ultrasound system design

TI's AFE58xx family allows the design of innovative ultrasound systems
with superior image quality and reduced power consumption. The first
device, the AFE5805, was introduced in March 2008, targeting the portable
to mid-range ultrasound market. The new AFE5804 is pin-to-pin compatible to
ease migration to an even lower power solution, should a design require it.
For more information on TI's AFE58xx family, please visit
http://www.ti.com/ultrasound.

In addition to the AFE58xx family, TI offers a full portfolio of
integrated circuits for ultrasound systems and other medical imaging
equipment, including high performance digital signal processors (DSPs),
DaVinci(TM) digital media processors, OMAP(TM) application processors,
high- speed data converters and amplifiers, power management, clocks and
interface devices as well as wireless connectivity solutions. To download
TI's latest Medical Applications Guide and view a broad range of system
block diagrams, please visit http://www.ti.com/medical.

Pricing, packaging and availability

The AFE5804 is sampling today in a 15 mm x 9 mm, 135-pin BGA package.
Volume quantities are scheduled for September 2008, at a suggested retail
price of $62 each in 1,000-unit quantities. Evaluation modules are also
scheduled for September 2008.

About medical products from Texas Instruments

TI is helping shape technology to improve the quality and accessibility
of medical equipment to revolutionize healthcare in the 21st century and
beyond. With its full range of analog and DSP products, from building
blocks to complete solutions, plus systems insight, global support
infrastructure, advanced process technology and medical industry
involvement, TI is helping make innovative medical electronics more
flexible, affordable and accessible. TI's experience in diverse markets,
such as wireless communications, consumer electronics, automotive and
aerospace, enables engineers to meet increasing needs for higher speeds,
higher precision, lower power and smaller equipment, while maintaining the
high standards for quality and reliability that the medical market demands.
For more information, please visit http://www.ti.com/medical.

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 25 countries. For
more information, go to http://www.ti.com.



Please refer all reader inquiries to:
Texas Instruments Incorporated
Semiconductor Group, SC-08087
Literature Response Center
14950 FAA Blvd.
Fort Worth, TX 76155
1-800-477-8924
Trademarks

OMAP and DaVinci are trademarks of Texas Instruments. All other
trademarks and registered trademarks belong to their respective owners.

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[Via Healthcare]