Speed and resolution combine for superior performance in wide-bandwidth, high-sensitivity applications DALLAS, Sept. 22
DALLAS, Sept. 22 /PRNewswire/ -- Texas Instruments Incorporated (TI)
(NYSE: TXN) today introduced the market's first 16-bit, single-channel, 200
mega samples per second (MSPS) analog-to-digital converter (ADC) to provide
faster speeds previously only available with lower resolution ADCs. The new
data converters enable new levels of performance in communications, test and
measurement, and defense applications. Evaluation modules (EVMs) simplify
design and enable rapid evaluations of these complex systems (see
http://www.ti.com/ads5485-pr).
"High-speed converter growth is being fueled by faster speed and
resolution requirements in medical, wireless communications and broadband
infrastructure. In fact, ADCs with sample rates of 50 MSPS or greater are
expected to grow at a rate of 17 percent from 2008 to 2013," said Susie
Inouye, principal analyst with Databeans. "TI is delivering converters to
address high speed and resolution requirements, allowing customers to enable
new applications like 4G communications."
The ADS5485 delivers speed, resolution and ultra-low noise to optimize
performance in these applications. For instance, the ADC can achieve a
signal-to-noise ratio of 75 dBFS and a spurious-free dynamic range of 87 dBc
for a 70-MHz input frequency (IF). The ADS5485 eases analog front end design
by incorporating a fully differential input buffer. Developed in TI's BiCom3
high-speed process technology, this buffer provides constant input impedance
over input frequency and eliminates kickback from the ADC's track-and-hold
structure to ensure consistent linearity of the signal.
The performance of the ADS5485 increases design flexibility and offers a
number of system-level benefits in communications, test and measurement and
defense applications, such as the following:
-- Enables 16-bit resolution with up to 100-MHz bandwidth for high-speed
digitizers, spectrum analyzers, test and measurement equipment, and general
data acquisition systems
-- Improves transmit power amplifier linearization and efficiency combined
with a digital pre-distortion algorithm, lowering total system cost
-- Enables sampling of larger bandwidths in radar systems, resulting in
enhanced tracking resolution and object discrimination
-- Allows software-defined radios to implement a greater number of
standards such as WiMAX, LTE and CDMA
"TI continues to push the performance envelope with high-speed ADCs. The
ADS5485 was a clear choice for our new Model 7150 Quad A/D Software Radio
Module. The higher sample rate means that users will be able to directly
digitize nearly 100 MHz of bandwidth, which is invaluable for our customers
working on wideband radar and wideband communication systems," said Robert
Sgandurra, senior product manager with Pentek.
Availability and packaging
The ADS5485 expands TI's ADS548x family of high-speed, ultra-low-noise
ADCs. The devices are available in a space-saving 9 x 9 mm, 64-pin QFN
package and suggested resale pricing for each is listed below in 1000-piece
quantities.
PartSpeed Resolution SNR SFDR SINAD Price
Number (MSPS)(bits) (dBFS)(dBc)(dBc)
ADS5485 20016 75 87 73.7 98.95
ADS5484 17016 75.5 87 74.3 78.95
ADS5483 13516 79 97 77.8 65.00
ADS5482 10516 80.5 98 79.3 56.65
ADS5481 8016 80.6 98 79.5 48.33
SNR, SFDR, SINAD numbers listed reflect 70 MHz IF.
Tools and signal chain solutions
Samples of all five members of the ADS548x family are available today. In
addition, TI offers a number of tools to simplify design. For instance, the
ADS5485 and the CDCE72010 low-jitter clock are available on the same
evaluation module (EVM) to facilitate fast evaluations of complex systems.
Customers can leverage TI's TSW1200 digital capture tool for rapid evaluation
of ADCs of up to 16-bit resolution and 500-MSPS sample rates. Samples, EVMs
and the TSW1200 capture card are available now from http://www.ti.com/ads548x
To further ease design and speed time-to-market, TI offers a complete
signal chain, including digital-to-analog converters, amplifiers, clocks, RF
solutions and digital signal processors. To download the latest Amplifier and
Data Converter Selection Guide, visit the Analog eLab(TM) Design Center at
http://www.ti.com/analogelab.
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
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SOURCE Texas Instruments Incorporated
