 |
 |
TI Analog Connection
July 2005
To subscribe to the TI Analog Connection eNewsletter, please click here.
In
this Issue:
Power Management
Amplifiers & Linear
Data Converters
Interface
Clocks & Timers
Analog Switches
Microcontrollers
Analog Training and Seminars
Company-Authored Articles in the Media
Customer Support Contact Information
POWER MANAGEMENT
1.875-V, 500-mA, 3-MHz Step-Down Converter in QFN or Chip-Scale: The TPS62305 and TPS62311 step-down converters accept inputs of 2.7 to 6.0V, operate at a fixed 3MHz, and provide up to 500mA output at up to 93% efficiency. The TPS62311 has fixed 1.5-V output voltage and 2.0-V undervoltage lockout limit.
- Quiescent Current: 65µA
- Applications: Portable Systems, Digital Cameras, Portable Media
TPS799xx LDOs in Chip Scale: The TPS799xx series of 200-mA, low-dropout linear regulators (LDOs) are now available in a 1.5mm x 1mm chip-scale package that is 80% smaller than SOT-23 devices. The tiny, low-noise LDOs meet the stringent power management requirements of 3G handsets that feature noise-sensitive Bluetooth™, RF and high-resolution camera circuitry, including advanced smart camera phones based on TI's OMAP™ processors.
- Quiescent Current: 60µA
- Adjustable Output Range: 1.193V- 6.5V
- Dropout Voltage @ Iout=200mA: 175mV
- Applications: Low-Noise Portable and RF Applications
AMPLIFIERS & LINEAR
Wide-Bandwidth Operational Transconductance Amplifier and Buffer: The OPA860 is a wideband (>400-MHz) op amp with >1200-MHz closed-loop buffer bandwidth.
- Low Quiescent Current: 11.2mA
- Applications: State-Variable Filters, Free-Running DC Clamp, Broadcast Video Equipment
2.048-V Precision Shunt Regulators: The LM4040C20 and LM4040D20 are fixed 2.048V precision shunt regulators with 0.5% and 1% initial accuracy, respectively. They are stable with all capacitive loads and are available in ultra-small SOT-23 and SC-70 packaging.
- Initial Tolerance (25°C): 0.5% C-grade; 1% D-grade
- Temperature Coefficient typ/max: 15ppm/100ppm (C-grade); 15ppm/150ppm (D-grade)
- Sink Current Capability: 0.045mA typ; 15mA
- Applications: Switching Power Supply, PCs, Routers, E-Meters, Medical Systems
LM4040C20: Price (1 ku) $0.35
DATA CONVERTERS
16-Bit, 250-kSPS, True Bipolar Serial ADC: The ADS8509 is a true bipolar ADC fabricated on TI’s HPA07 process, which results in very low offset error (5mV) and offset error drift (±0.4ppm/°C).
- 70mW (typ) power dissipation at 250kSPS
- SPI-compatible serial output with daisy-chain (TAG) feature and simple DSP interface
- Various Input Ranges: 4V, 5V, 10V, ±3.33V, ±5V, ±10V
- Applications: Industrial Process Control, Data Acquisition Systems, Medical Equipment
ADS8509IB: Price (1 ku) $25.00
INTERFACE
14-Bit, Full-Duplex Serializer/Deserializer: The SN75LVDT1422 is the industry's only SERDES transceiver operating at 10-MHz to 100-MHz frequencies, and offers independent operation of the 14-bit serializer and 14-bit deserializer. It provides three termination resistors for the differential LVDS inputs, which minimizes board space and cost as well as providing better overall signal integrity.
- 175-Mbytes/s in TX/RX Modes
- No External Components Required for PLL
- Power Dissipation: 360mW (typ) at 100MHz
- Applications: Flash Memory Cards, Copiers, Printers
CLOCKS & TIMERS
3.3-V Clock Synchronizer and Jitter Cleaner: The CDCM7005 is a high-performance clock synthesizer and jitter cleaner that combines high-frequency outputs with the industry's lowest phase noise and jitter to enable clean data converter clocking.
- LVPECL and LVCMOS PLL Clock Synchronizer
- Accepts LVCMOS Input Frequencies up to 200MHz
- Efficient Jitter Cleaning from Low PLL Loop Bandwidth
- Applications: 2.5G/3G Wireless Base Stations, Data Communications, Medical Imaging
ANALOG SWITCHES
0.9-Ω, Dual SPST Analog Switch: The TS5A23166 and TS5A23167 are complementary, dual SPST analog switches where one is usually open, the other closed. These devices are ideal for portable audio applications where efficient power delivery to the speaker with minimal signal loss is essential.
- Low ON-State Resistance: 0.9-Ω
- Low THD: 0.005%
- Bandwidth: 150MHz
- Applications: Cell Phones, PDAs, Portable Instrumentation, Hard Drives
TS5A23167: Price (1 ku) $0.61
MICROCONTROLLERS
16-Bit Ultra-Low-Power MCU: The MSP430F42x0 is a microcontroller configuration with a 16-bit timer, a high-performance 16-bit ΔΣ ADC, 12-bit DAC, 32 I/O pins, and LCD driver.
- Applications: Analog and Digital Sensor Systems, Digital Motor Control, Remote Controls, Thermostats, Digital Timers, Handheld Meters, Etc.
ANALOG TRAINING AND SEMINARS
2005 MSP430 Advanced Technical Conference: The ATC offers multiple tracks of courses taught by MSP430 senior applications engineers, MSP430 customers, third parties and universities. You can fully customize your schedule for the MSP430 MCU courses and labs that best fit your development needs. Pre-register today and save $100 off conference cost. Please visit our website for more details.
Video Compression Webcast: View the archived webcast, “Video Compression: Evaluating System Tradeoffs with H.264, VC1, and other Advanced Codecs,” and explore how codecs differ in the tradeoffs they make between compression rates, encode/decode processing requirements and key system factors such as latency. This Net Seminar provides a brief introduction to how video compression is achieved and insight into why advanced video codecs and specific profiles within these codecs are better suited for certain applications.
View Archived Analog eLab Webcasts: The Analog eLab series provides designers with an online lab environment hosted by analog experts from TI and authorized TI distributors. The following Webcasts are archived online for you to view at your convenience.
- Utilizing High-Speed ADCs for Undersampling
- Precision Signal Conditioning for Delta-Sigma Data Converter Systems
- Power Concerns for Large Computational Devices: FPGAs and DSPs
- Amplifier Noise: Types, Origins, Magnitude Predictions and Reduction Techniques
- Quantifying Amp to ADC—Distortion Considerations
- Quantifying Amp to ADC Interface Performance
- Avoiding the Pitfalls with Single-Supply Op Amps
COMPANY
AUTHORED ARTICLES IN THE MEDIA
"Good-Bye
Trusted Travel Companion," by Dave Freeman. Portable Design,
June 2005.
"Beyond
the Spice Model's DC and AC Performance," by Ron Mancini. EDN,
June 23, 2005.
"Converter
Design with Integrated Switching Elements," by Dirk Gehrke. EPN
Europe, June 2005.
"New
DAC Generation significantly simplifies WCDMA TX Designs," by
Heinz-Peter Beckemeier. Basestation E-Newsletter (UK), June 2005.
CUSTOMER SUPPORT CONTACT INFORMATION
| Product Information Center | - Americas |
| Product Information Center | - Europe, Africa, Middle East |
| Product Information Center | - Asia/Pacific |
| Product Information Center | - Japan |
To subscribe
to the Analog eNewsletter, please click here.
This e-mail was sent to