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TI Analog Connection
Your monthly update of new Analog products from TI
February 2006
To subscribe to the TI Analog Connection eNewsletter, please click here.
In
this Issue:
Power Management
Low-Power RF
Data Converters
Amplifiers & Linear
Interface
Switches and Multiplexers
DaVinci™ Video Integration
Analog Training and Seminars
Company-Authored Articles in the Media
Customer Support Contact Information
POWER MANAGEMENT
Smart Battery Charger: The bq24721 is a high-efficiency, synchronous battery pack charger with an onboard analog front-end that allows the device to easily interface to the system power management microcontroller via a simplified SBS-like SMBus interface.
- User-Selectable Frequency: 300kHz to 500kHz
- Dynamic Power Management
- Applications: 3- to 4-Cell Li-Ion Powered Applications, Notebook Computers, Portable DVD Players
Voltage Protection for 2-, 3-, or 4-Cell Li-Ion Batteries: The bq29412 device provides second-level overvoltage protection in Li-Ion battery packs so that if one cell reaches an overvoltage condition, the protection sequence begins.
- 2-, 3-, or 4-Cell Secondary Protection
- Low Power Consumption: Icc < 2µA
- Applications: Notebook Computers, Portable Instrumentation, Portable Equipment
Single-Cell White LED Driver with 1.5-A Switch: The TPS61058/9 devices are fixed-frequency, synchronous boost DC/DC converters with an integrated down conversion mode. They are optimized for driving high-power, single-cell white LEDs up to 800mA from a 2.7-V to 5.5-V input.
- Efficiency: 80% (max)
- Output Voltage: 2.5V to 5.5V
- Switching Frequency: 650kHz
- Applications: Torch or Flashlight in Camera Cell Phones, Smartphones, PDAs
3-MHz, 500-mA, Step-Down DC/DC Converter: The TPS6230x, TPS6231x and TPS6232x series are high-frequency, synchronous step-down DC/DC converters optimized for portable applications. The devices accept an input of 2.7 to 6.0V and operate at a fixed 3MHz. They provide an output of 0.6 to 5.4V and 500mA at up to 93% efficiency.
- Fixed and Adjustable Output Voltage Versions
- Integrated Power-Down Sequencing on TPS6232x Family
- Applications: Low-Power DSP/MCU Core Supply, PDAs, Cell Phones, USB Devices
Miniature, 2-W Isolated, Dual-Output DC/DC Converters: The DCP021215D, DCP022418D and DCP022412D offer a highly integrated design with a power density of 106W/in3. Other features include device-to-device synchronization ability, 1kVrms isolation and up to 88% efficiency.
- 12-V to 24-V input models
- Dual Output Voltage: ±12V, ±15V and ±18V
- Applications: Point-of-Use Power Conversion, Data Acquisition, Test Equipment
30-A, Non-Isolated DC/DC Power Module: The PTH05T210W is a next-generation module that features TurboTrans™ technology, allowing customized "tuning" of the module to meet specific transient load requirements. This results in up to an 8x reduction in output capacitance and saves cost and board space.
- Input Voltage Range: 4.5V to 5.5V
- Adjustable Output Voltage: 0.7V to 3.6V
- Applications: Telecom, Datacom
Wide-Input, 10-A, Non-Isolated DC/DC Module: The PTH08T240W operates from a wide input voltage range, 4.5V to 14V, and provides high-efficiency, step-down voltage conversion for up to 10-A loads. The output voltage can be set to any value between 0.7V to 5.5V using a single external resistor.
- TurboTrans™ Technology Enhancement
- Efficiencies up to 96%
- Applications: Complex Multi-Voltage Systems, Bus Drivers, Microprocessors
1.8-V to 28-V Input Synchronous Buck Controller: Supporting 3.3-V, 5-V, 12-V and 24-V input voltage rails, the TPS51117 is a highly optimized, light-load efficiency DC/DC synchronous step-down controller.
- Output Voltage: Adjustable from 0.75V to 5.5V
- Selectable D-CAP™ Mode for <100ns Transient Response
- Frequency Settings: 100kHz, 250kHz, 400kHz
- Applications: Notebook Computers, General-Purpose Power Supplies
Dual-Power DC/DC Synchronous Step-Down Controller: The TPS51124 is a highly optimized dual DC/DC step-down controller designed to run off 3- to 4-cell Li-Ion batteries and provide high-power, sub-3.3-V supplies. It also features integrated 1.2ns soft start time and staggered frequency settings from 230kHz to 423kHz.
- Supply Voltage Range: 3V to 28V
- Output Voltage: Adjustable from 0.75V to 5.5V
- Applications: Notebook Computers, General-Purpose Power Supplies
LOW-POWER RF
Note: TI recently acquired ChipCon, a company specializing in low-power RF. Links in this section will take you to the product on ChipCon’s Web site.
ICC2430ZDK ZigBee™ Development Kit Pro: The CC2430ZDK Pro, designed to deliver the most powerful elements for ZigBee development, can be used to develop everything from simple light switches to advanced nodes with many peripherals.
Kit includes:
- CC2420 Transceiver Core, an 8051 MCU and Flash Memory
- ZigBee Software Development Suite, 2-Day ZigBee Training and 6 Months Support
- Two SmartRF04EB Evaluation Boards, Two CC2430EM Evaluation Modules, 5 CC2430DB Demonstration Boards, Antennas and Adapters
CC1100 Multi-Channel RF Transceiver: The world's lowest total system cost radio intended for use in the 315, 433, 868 and 915 MHz frequency bands. With its very low power consumption and excellent radio performance, the CC1100 is a perfect solution for applications in home and building automation, wireless alarm and security systems, and consumer electronics.
- World’s Smallest Transceiver: 4 x 4mm
- Few External Components Required
- Very Low Power Consumption
CC2500 Multi-Channel RF Transceiver: The CC2500 is a highly integrated multi-channel RF transceiver designed for low-power wireless applications in the 2.4-GHz
Industrial Scientific Medical (ISM) band.
- Excellent Radio Performance
- Few external components required
- Applications: Wireless Game Controllers, Wireless Keyboard/Mouse, Consumer Electronics, Wireless Audio and Sport and Leisure Equipment
DATA CONVERTERS
11-Bit, 105-MSPS ADC: The ADS5411 is a bipolar, wideband, 5-V supply operation ADC that maintains low noise and linearity over a wide input frequency range from baseband up to 200MHz.
- High SNR: 66.4dBc at 50MHz IF (105MSPS)
- High SFDR: 90dBc at 50MHz IF (105MSPS)
- Total Power Dissipation: 1.9W
- Applications: Wireless Communications, Video and Imaging, Test and Measurement
13-Bit, 210-MSPS, 5-V Bipolar ADC: The ADS5440 high-performance, wideband converter maintains outstanding low noise and linearity from baseband up to 500 MHz. It operates from 3.3-V and 5-V power supplies and dissipates 2.25W of total power.
- SNR: 69.1dBc at 100MHz IF (210MSPS)
- SFDR: 80.8dBc at 100MHz IF (210MSPS)
- 3.3-V LVDS-Compatible Outputs
- Applications: Test and Measurement, Software Defined-Radio, Base Stations
16-Bit, 2-MSPS ADC with LVDS Interface: The ADS8413 is a high-speed differential input SAR ADC with a 200-Mbps serial LVDS interface designed to support daisy chain or cascade of multiple devices. Other features include 16/8 data frame, zero latency at full speed and 290mW at 2-MSPS power dissipation.
- SNR: 92dB at 10kHz I/P
- THD: -107dB at 10kHz I/P
- Unipolar, Differential Input Range: -4V to 4V
- Applications: Medical Instrumentation, High-Speed Data Acquisition, Communications
16-Bit, 4-Channel, Low-Glitch Vout DAC: The DAC8555 is a low-glitch (0.15nV-s), low-power (950µA/ch at 5V), voltage output DAC with programmable reset and programmable data format. The device's performance keeps transients under 1mV and <100ns during any two-code transition.
- Relative Accuracy: ±12LSB (max)
- Settling Time: 10µs to ±0.003% FSR
- SPT-Compatible Serial Interface: Up to 30MHz
- Applications: Process Control, Data Acquisition, Portable
14- and 16-Bit, Dual-Channel, 4-Quadrant Multiplying DACs: The DAC8802 and DAC8812 are dual, serial input, current output DACs designed to operate from a single +2.7V to +5.5V supply. Other features include 10-MHz reference bandwidth, 50-MHz SPI™-compatible 3-wire interface and midscale or zero-scale reset.
- Relative Accuracy: 1LSB (max)
- Settling Time: 0.5µs
- Differential Nonlinearity: 1LSB (max)
- Applications: Portable Applications, Process Control, Data Acquisition
AMPLIFIERS & LINEAR
1.8-V, 2.9-µA, 90-kHz Op Amps: Available in single and dual versions, the OPA379 and OPA2379 feature 1.8-V to 5.5-V supply range, 2.9-µA quiescent current and 90-kHz bandwidth.
- Low Wideband Noise: 80nV/vHz
- Vos: 1.5mV (max)
- PSRR, CMRR: Aol =100dB
- Applications: Microcontroller Applications, Gas Detection, Handheld Medical
OPA2379: Price (1 ku) $1.10
3-Channel, Low-Power Video Amplifier: The THS7313 is a highly integrated video buffer amplifier featuring I²C control, fixed SDTV filters, 6dB gain, SAG correction, 2:1 input MUX and selectable input bias modes. The device can also buffer DaVinci™ processors by utilizing the SAG pin to increase the gain to 5.2V/V.
- Fixed 5th-Order LPF at 8MHz
- Single Supply: 2.7V to 5V
- Low Power: 16.6mA total Iq at 3.3V
- Applications: Set-Top Box Video Output Buffering, PVR/DVDR Output Buffering
1-Gbps to 4-Gbps Cable-Limiting Amp: The ONET4251PA is a high-speed limiting amplifier for multiple copper cable applications with data rates up to 4.25Gbps. It ensures low jitter even when overdriven and has loss-of-signal detection as well as a received-signal strength indicator.
- Wide Dynamic Range: 50mVp-p to 1200mVp-p
- Single Supply: 3.3V
- Power Dissipation: 89mW
- Applications: Data Communication/System Links, Fibre Channel Systems, Rack-to-Rack Interconnects
4.25-Gbps Transimpedance Amp with AGC and RSSI: The ONET4291TA, a 4.25-Gbps transimpedance amplifier used in optical receivers, features low input referred noise (8.3pA/vHz), 2.8-GHz bandwidth, automatic gain control with 3.2-kΩ transimpedance, and a received-signal strength indicator.
- Input Current: 2mAp-p (max)
- Power Dissipation: <56mW (typ)
- Single Supply: +3.3V
- Applications: SONET/SDH Transmission Systems, Fibre-Channel Receivers, Gigabit Ethernet
INTERFACE
Digital Isolators: TI’s capacitive digital isolation technology conveys data across an oxide barrier at significantly higher rates and with greatly reduced power requirements compared to optocouplers. The ISO721 delivers substantially improved magnetic immunity over inductive solutions and is a highly reliable, single-component, EMI-resistant solution ideal for your data transmission needs.
Key features:
- Drop-in Replacement for Most Opto and Magnetic Isolators
- 4000 V (peak) Isolation
- UL 1577, IEC 60747-5-2 (VDE 0884, Rev. 2)
- IEC 61010-1 and CSA Approved
- 25 kV/µs Transient Immunity
- Signaling Rate – 0 Mbps to 150 Mbps
- Low Propagation Delay
- Low Pulse Width Distortion
- High Electromagnetic Immunity
- Low Input Current Requirement
Four Dr, Five Rx RS-232 Solution with ±15-kV HBM ESD Protection: The 28-pin MAX213 provides excess noise tolerance with a driver output wider voltage swing and receiver Schmitt-trigger input. Two separate power-down control pins provide excellent flexibility in power-saving options. This device is suitable for harsh electrical environments.
- Wide Driver Output Swing: ±9V
- TTL-Compatible Driver Inputs While Operating at 5-V VCC
- Applications: High-Speed Modems, Notebooks, and Control Systems
MAX213:
Price (1 ku) $1.08
EMC-Optimized, High-Speed CAN Transceiver: Designed for
operation in especially harsh environments, the SN65HVD1050 features cross-wire,
over-voltage and loss of ground protection (-27V to 40V). It has a -12V
to 12V common-mode range and will withstand transients from -200V to 200V,
complying with ISO7637.
- High Electromagnetic Immunity
- Meets or Exceeds ISO 11898-2 Requirements
- Bus-Fault Protection: -27V to 40V
- Applications: Industrial Automation, DeviceNet™ Data Bus
Digital TV Tuner IC: The SN761662 is a digital TV tuner IC consisting of PLL synthesizer, 3-band local oscillator and mixer, RF AGC detector circuit, four NPN band switch driver, an auxiliary port/ADC input and XTAL output.
- I²C Protocol
- Tuning Voltage Output: 30V
- Power Supply: 5V
- Applications: Digital TVs, DVD Recorders, Digital CATV, STB, PC TV
Dual, Signal Conditioning Transceiver: The TLK1002A single-chip, dual channel signal conditioner supports data rates from 1Gbps to 1.3Gbps.
- Low Power CMOS Design: <300mW
- High Differential Output Voltage Swing: 1600mVp-p (typ)
- Applications: Gigabit Ethernet, Fibre Channel Signal Cleaning, Storage Area Networks
1-Gbps to 4.25-Gbps Limiting Equalizer: The TLK4211EA is a versatile, high-speed limiting equalizer that provides high frequency boost of 12dB at 2.1GHz and sufficient gain to ensure a fully differential output swing for input signals as low as 200mVp-p. It is designed to meet the performance requirements of backplane and cable applications in high-performance systems.
- Multi-Rate Operation: Up to 4.25Gbps
- Wide Dynamic Range: 200 to 2,000mVp-p
- Differential Output Voltage: 580mVp-p (min)
- Applications: High-speed Link in Data Communications, Fibre Channel Systems, Backplane Interconnects
SWITCHES AND MULTIPLEXERS
5-Channel Differential 10:20 Mux Switch For DVI/HDMI Applications: The TS3DV520 is designed for switching high-speed differential signals. With a bandwidth of over 1.2 GHz (2.4 Gbps) it can easily reroute a 1.65-Gbps DVI/HDMI signal or multiplex two sources to a single receiver. With low crosstalk (-41 dB) and off isolation (-39 dB), it is ideal for switching differential signals while maintaining a superior data eye.
- Low ON-State Resistance: 3.5Ω typical
- Applications: Digital TV, Set-Top Boxes, and Home Audio/Video Receivers
12-Ω SPDT Analog Switch with Over/Undershoot Protection: The TS5A63157 switches between two analog signal sources to an input of a power amplifier. While the switch is off, it is able to prevent the power amp from seeing voltage transients above VCC or GND on its input.
- Low THD: 0.01%
- -61-dB Off Isolation at 1MHz
- Applications: Cell Phones, PDAs, MP3 Players, and Hard Drives
DAVINCI™ VIDEO INTEGRATION
First DaVinci™ Technology Products Available Now: Sampling now, the first processors based on DaVinci technology offer unprecedented video integration for applications such as videophones, automotive infotainment, digital still cameras, streaming media, IP set-top boxes, and video security systems. Visit the DaVinci product page for more information, including benchmarks and technical briefs. You can also download Episode 3 of TI’s podcast and vidcast, which examines the first DaVinci™ technology products for digital video.
ANALOG TRAINING AND SEMINARS
Analog eLab, Feb. 28: Optimizing Analog-to-Digital Conversion in DSP-based Applications. Any system that touches the “real world” will need some form of data conversion. Many DSPs have integrated data converters. However, designers often face the challenge of determining whether or not a DSP’s on-board converter is up to the task and, if it is not, choosing an appropriate off-chip converter.
With any sensor signal, to data converter, to DSP signal chain there is a need for some form of analog processing. The selection of the converter, either on- or off-chip, has an impact on the analog pre-processing amplifier. In this e-Lab webcast, we will discuss how a selection criterion for the amplifier is developed from an understanding of the source and the converter demands, as well as how the entire signal chain must be viewed as an integrated system, not just individual parts, for optimum performance. Sign up now.
Analog eLab, March 8: Managing Noise and Ground in Precision Analog System Applications. Sensor applications often have low-level signals. A peaceful co-existence of the sensor signal, analog circuitry, and processor requires careful attention to layout and noise reduction techniques.
In this e-lab we will discuss three sources of noise, the paths where the noise travels, and how to reduce the noise to tolerable levels. We will discuss the proper selection and placement of noise-isolating and limiting components to keep analog and digital noise out of sensitive input circuits. This e-lab is recommended for any designer who has struggled to keep noise out of sensitive input circuits. Sign up will be available soon at www.ti.com/analogelab.
TI Developer Conference: The TI Developer Conference will feature the latest technology in high-performance analog, digital signal processing, microcontrollers and more. Tracks include Audio, Communications, Control, Video, Education, Systems and Tools. The conference takes place Feb. 28 to Mar. 2, 2006.
European TI Developer Conference: Join industry peers and experts at the fourth TI Developer Conference at venues across Europe from March to June, 2006. Choose from up to 18 technical tutorials that include sessions on analog hardware to help you understand power conditioning for the analog signal chain, power supply design pitfalls and strategies to gain insight into the factors influencing your high-resolution data converter or signal conditioning design. To register or for more information, visit www.ti.com/europe/devcon
European Portable Power Design Seminar: The Portable Power Seminar will feature practical presentations of portable power management design issues and considerations, design techniques, topologies, tools, and examples. Topics include Battery Selection, Battery Cell Balancing, Increased Handheld Equipment Functionality, Thermal Considerations, LDO Dropout, Evaluation and Performance Optimization of Fully Integrated DC/DC Converters, Battery Authentication, White LED Flash, and Impedance Tracking.
COMPANY
AUTHORED ARTICLES IN THE MEDIA
"Eliminating
the Audible Buzz in GSM Phones," by Nick Holland and Mike Score.
Microwave Engineering Europe, Jan. 2006.
"Hidden
Applications for the Three-Terminal Shunt Regulator?" by Michael
O'Loughlin. EDN 12/16/05.
"Digital
Techniques Ready to Power Electronic Systems," by Rich Valley.
Electronic Design 12/15/05.
CUSTOMER SUPPORT CONTACT INFORMATION
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| Product Information Center | - Europe, Africa, Middle East |
| Product Information Center | - Asia/Pacific |
| Product Information Center | - Japan |
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