New High-Performance Analog Showcase
from Texas Instruments
March 2004

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In this Issue:
Data Converters
Power Management
Amplifiers & Comparators
Interface
Clocks & Timers
Audio
Analog Training / Seminars
Company Authored Articles In The Media
Customer Support Contact Information

DATA CONVERTERS

New Family of 8-Channel, 10- and 12-bit, 40/50/65/70 MSPS ADCs with Serial LVDS: The ADS527x family features high SNR performance and low power dissipation.
4-Channel Differential Input, 240 SPS, Low Power, Delta-Sigma ADC: The ADS1224 is a precision, wide dynamic range A/D converter with 24-bit resolution operating from a 2.7 V to 5.5 V supply.
  • With a 2.5 V reference, full-scale differential input range is ± 5 V
  • Input multiplexer with 4 differential channels
  • Applications: Portable instrumentation, industrial process control, and smart transmitters
8-Bit, 8-Channel Sampling A/D Converter with I 2 C Interface: The ADS7830 low-power 180 ?W (standard mode) ADC has a 70-kHz sampling rate, low offset/gain error at ±0.5 LSB, and comprehensive power-down options.
  • 4 differential/8 single-ended inputs
  • Supports all three I 2 C modes: standard, fast, and high-speed
  • Applications: Battery-operated systems, remote data acquisition, isolated data acquisition, and multi-master data acquisition systems
Price (1 ku) $1.40

16-bit, Low-Glitch, Quad-Channel D/A Converter: The DAC7654 quad DAC, with SPI interface and low glitch (5 nV/s typ.), is designed for high accuracy systems.  
  • Low power (18 mW)
  • Applications: Industrial process control, ATE pin electronics, instrumentation and test equipment, and data acquisition systems
Price (1 ku) $20.75 - $26.77

Programmable Touch Screen Controller with Integrated Audio Codec, Headphone and Speaker Amplifiers: The TSC2101 integrated touch screen controller offers 7 analog inputs, 4 analog outputs, and 3 amplifiers as well as low power with 19 mW stereo playback at 48 ksps.
  • Mono audio record up to 48 ksps
  • Small 48-lead 7x7mm QFN package
  • Applications: PDAs, smart cell phones, and MP3 players
Price (1 ku) $4.95



POWER MANAGEMENT

Enhanced, Low Input (2.25 V - 5.5 V), Voltage Mode Synchronous Buck DC/DC Controller: The DC/DC TPS40020/21 controllers offer source (TPS40020) or source/sink (TPS40021) versions, programmable frequency of 150 kHz to 1 MHz, and a 0.7V 1.0% reference.
  • Applications: Servers, base stations, and other communications systems
  • Predictive Gate Drive Technology
  • Soft start enable and disable; drive upper and lower N Ch. MOSFETs
  • Evaluation module available
Price (1 ku) $1.15

1.5-A SWIFT TM DC/DC Converter: The TPS54110 DC/DC converter offers 3-A peak MOSFET switches for greater than 1.5-A current over the entire temperature range, as well as adjustable output voltage range down to 0.9 V with 1% initial accuracy.
  • Efficiencies > 90% and 700 kHz PWM switching frequencies
  • Applications: Low-voltage, high density systems, broadband and networking, notebooks and PCs
  • Evaluation module available
Price (1 ku) $2.15

Midrange Input (4.5 V to 28 V) Synchronous Buck Controller with Voltage Feed-Forward:   TPS40070/71 features include programmable fixed frequency up to 1 MHz, < 1% internal 700 mV reference, and Predictive Gate Drive Technology.  
  • User programmable functions including soft-start, UVLO, operating frequency, voltage feed-forward and high-side FET sensed short-circuit protection
  • Operation over 4.5-V to 28-V range
  • Programmable fixed-frequency up to 1 MHz voltage-mode controller

IEEE802.3af Power Interface Switch for Power-Over-Ethernet (PoE) Powered Devices: The TPS2371 is a legacy-compatible PoE PD interface switch that provides detection signature, classification signature, and programmable inrush current limit.
  • Fully integrated solution requires minimal external components, simplifying design
  • Independently tested for interoperability
  • Reference designs and evaluation module available
Price (1 ku) $1.25

Positive High Voltage Hot Swap Controllers:   The TPS2490/91 Hot Swap Controllers provide power limiting and current limiting and a wide operating range of +9 V to +80 V.
  • Latched operation (TPS2490) and the automatic retry (TPS2491) allow multiple solutions to fit system requirements
  • Applications: Server backplanes, storage area networks (SAN), medical systems, plug-in modules, and base stations
Price (1 ku) $1.70

Current-limited Power Distribution Switch for USB Applications: The TPS2041B (single-channel) and TPS2044B (quad-channel) power switches allow heavy capacitive loads at 70m, short-circuit conditions, 500 mA continuous current, and accurate current limit of 0.7A (min) with an operating range of 2.7 V to 5.5 V.   
  • Applications: Heavy capacitive loads and short-circuit conditions
Price (1 ku) $0.60
Price (1 ku) $1.00



AMPLIFIERS & COMPARITORS

Quad, Differential Input/Output, 2x1 Multiplexed, High-Gain Preamplifier: The MPA4609 preamp, designed for high-density tape backup systems, also functions as a switched gain, quad ADC driver.
  • Very low 0.65nV/?Hz input noise with 90 MHz bandwidth on 12.5 mA/channel low power
  • 4 differential output channels
  • 2 sets of 4 differential inputs
  • 900 MHz bandwidth up to 3.5 VPP output
Price (1 ku) $3.95

50 MHz to 400 MHz Cascadeable IF Amplifier: The THS9000 is a medium power, cascadeable gain block optimized for high IF frequencies.
  • Offers high dynamic range (OIP = 36 dBm, NF < 4.5 dB) and single supply voltage (Vs = 3 V to 5 V, Is = adjustable)
  • Available in a 2x2 QFN, ~50% smaller than competing devices
  • Evaluation module available
Price (1 ku) $0.97

Voltage Output Programmable Sensor Conditioner: The PGA309 programmable analog signal conditioner, designed for pressure bridge sensors, is digitally calibrated with external EEPROM, offering a one- or two-wire interface and sensor error compensation in a small TSSOP-16 package.
  • Voltage output: ratiometric or absolute
  • Eliminates potentiometers and sensor trims
  • Designer kits available
Price (1 ku) $2.95




INTERFACE

4-Channel, 18 Bit Low-Power CMOS Serdes:   The TLK4120 is a four-channel, multi-gigabit transceiver used in ultrahigh-speed bidirectional point-to-point data transmission systems.
  • Offers 0.5 to 1.26 Gbps data rate support and low power operation at ~375 mW/channel (typ.)
  • Built-in equalizer for long link length, differentiating it from competing devices
Price (1 ku) $24.00

1.5°C Accurate Programmable Digital Temperature Sensor with SPI Interface: The TMP124 temp sensor offers 12-bit resolution, 240 ms temp conversion time, and 50 ?A quiescent current in an SO-8 package.
  • Applications: Power-supply temperature monitoring, computer peripheral thermal protection, notebooks, cell phones, battery management, office machines, thermostat controls, environmental monitoring and HVAC, and electromechanical device temperature
Price (1 ku) $0.70




CLOCKS & TIMERS

1.8V DDRII Zero Delay Buffer:   The CDCU877 is a high-performance, low-jitter, low-skew, zero-delay buffer that distributes a differential clock input pair to ten differential pairs of clock outputs and to one differential pair of feedback clock outputs.
  • First DDRII PLL functioning up to 800 MHz


AUDIO

Digitally Controlled Microphone Preamp: This industry's first digitally controlled microphone preamp IC offers very low noise and distortion with THD+N of 0.0004% and equivalent noise of -128 dBu.
  • Designed as a front end for high-performance audio A/D converters
  • Wide dynamic range and differential signal path
Price (1 ku) $9.95



ANALOG TRAINING/SEMINARS

2004 Precision Data Acquisition Application Seminar: This one-day seminar, offered in US and European locations, will focus on advanced precision data acquisition systems, precision low-level signal measurement systems, and high-resolution, high-channel count data acquisition systems.
For each system example, the following will be discussed:
  • Signal conditioning needed to buffer and scale sensor signals to match the data converter
  • Tools and techniques for optimizing performance of the data converter
  • Interfacing the data converter to a microprocessor or DSP
For more information, visit:
http://focus.ti.com/docs/training/catalog/events/event.jhtml?sku=SEM404002

2004 Portable Power Design Seminars: The TI 2004 Portable Power Design Seminars will consist of technical, highly practical presentations of portable power management design issues and considerations, design techniques, topologies, tools, and examples.   The seminars, which will take place in Europe, the U.S., Asia, and Japan beginning in March, include topics written and presented by Texas Instruments applications engineers and training staff, tutorial review of both basic and advanced principles, and hands-on application examples.
To learn more about the sessions or register for the conference, visit: 2004 Portable Power Design Seminar

MSP430 "430 Day" Worldwide : The MSP430, the world's lowest power MCU, features integrated high-performance analog and a modern 16-bit CPU.   Register for a FREE "lunch and learn" session featuring live demos.   Registered attendees will receive lunch and a free retro MSP430 watch along with discounts on select MSP430 Flash emulation tools.  For more information, visit:  http://focus.ti.com/docs/training/catalog/events/event.jhtml?sku=SEM104001



COMPANY-AUTHORED ARTICLES IN MEDIA

Power Management
"Controller makes power supply redundancy easy," by Jim Bird, Planet Analog, January 6, 2004 http://www.planetanalog.com/features/showArticle.jhtml;jsessionid=5L4EXLFPC4SDQQSNDBCCKHY?articleID=17200265
"Simple off-line power supply minimizes cost," by Brian King and Robert Kollman, Electronic Design, February 2, 2004 http://www.elecdesign.com/Articles/Index.cfm?ArticleID=7165  

Amplifiers
"What's different about difference amplifiers," by Jerry Steele, AnalogZONE, January http://www.analogzone.com/acqt1222.pdf
"The breadboard's smoking," by Bill Klein, Planet Analog, January 14, 2004, http://www.planetanalog.com/columns/showArticle.jhtml?articleID=17200446


CUSTOMER SUPPORT CONTACT INFORMATION
Product Information Center - Americas Ph: +1 (972) 644-5580
Product Information Center - Europe Ph: +44 (0) 1604 66 33 99
    Fax: +49 (0) 8161 80 2045
Product Information Center - Asia Ph: +886-2-2378-6800
Product Information Center - Japan Ph: +81-3-3344-5311

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