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TI Analog Connection
Your monthly update of new Analog products from TI
November 2005
To subscribe to the TI Analog Connection eNewsletter, please click here.
In
this Issue:
Power Management
Data Converters
Amplifiers & Linear
Interface
New Industrial Control Web Site
Analog Training and Seminars
Company-Authored Articles in the Media
Customer Support Contact Information
POWER MANAGEMENT
Wide-Input, Non-Isolated Point-of-Load Power Module: The T2 series power modules, up to 50% smaller than their predecessors, feature TI’s new TurboTrans™ technology that allows the designer to custom-tune the module to meet a specific transient load requirement.
- Up to 8x Reduction in Output Capacitance, Saving Cost of Capacitors and PCB Space
- 1.5% Output Regulation
- Applications: Datacom, Telecom, Networking, Servers, Workstations, and Storage Systems Using the Latest-Generation DSPs, ASICs and FPGAs, Wireless Communications
12-W, 3.3/5-V Input, Wide Adjust Output Boost Converter: Operating over a 2.95 V to 5.5 V input range, the PTN04050C provides high-efficiency, step-up voltage conversion for loads of up to 12W.
- Output Voltage Set Using A Single External Resistor
- Applications: Telecom, Industrial Test and Measurement, Distributed Power, and General-Purpose Circuits
White LED Flash Driver with 1.5-A Switch: The TPS61058 and TPS61059 fixed-frequency, synchronous boost DC/DC converters with integrated down-conversion mode are optimized for driving high-power, single-cell white LEDS up to 800mA from a 2.7-V to 5.5-V input. The LED current can be programmed to different light levels by a set of external resistors.
- Applications: White LED Torch/Flash, Digital Camera Flash, Generic Lighting
TPS61059: Price (1 ku) $0.95
3-MHz, 500-mA, Step-Down DC/DC Converter: The TPS6230x, TPS6231x and TPS6232x series high-frequency, synchronous step-down DC/DC converters accept an input of 2.7 to 6V, operate at a fixed 3MHz, and provide an output of 0.6 to 5.4V, 500mA at up to 93% efficiency.
- Applications: Low-Power DSP/MCU Core Supply, PDAs, Cell Phones, USB Devices
Compact LCD Bias Supply IC: The TPS65150 compact power supply solution provides all three voltages required by a thin film transistor (TFT) LCD panel.
- Supports 2.5-V, 3.3-V and 5.5-V Supply Rails
- Input Voltage Range: 1.8V to 6V
- Applications: LCD Notebooks and Monitors, Car Navigation
Dual, 250-mA, RF LDOs: The TPS712xx and TPS713xx are dual output, high PSRR LDOs ideal for wireless/RF applications and available in fixed or adjustable voltage options (1.2V to 5.5V). The TPS713xx integrates a supervisor to monitor Vout2.
- Applications: Cell Phones, PDAs, Wireless PDA/Handheld Products, Digital Cameras
TPS713xx: Price (1 ku) $0.90
50-mA, 24V LDO in SC70 Package: The TPS715xx series of low-dropout voltage regulators operates over the 2.5-V to 24-V input range and are stable with any capacitor.
- Low Quiescent Current: 3.2µA
- Fixed and Adjustable Voltage Range
- Applications: Cell Phones, Battery-Powered Equipment
Ultra-Low Noise, High PSRR, 200-mA LDO Family: The TPS730xx family is stable with a 2.2µF ceramic capacitor. It features 50-µs fast start-up and very low 120-mV dropout voltage at full load.
- Applications: WLAN, Mobile Handsets, PDAs, RF-Sensitive Applications
1-A LDO with Low Vin and SVS: The TPS726xx family of LDOs offers output voltages commonly used to power the newest DSPs, FPGAs and microcontrollers.
- Integrated SVS with 200ms Reset Delay Time
- Efficiency as High as 85.7%
- Applications: General DSP/FPGA/MCU Applications, 1- to 3-Cell Power Sources
Midrange Input Synchronous Buck Controller with Voltage Feed Forward: The TPS40074 provides a variety of user-programmable functions including soft start, UVLO, operating frequency, and high-side, FET-sensed short circuit protection.
- Switching Frequency: Programmable to 1MHz
- <1% Internal 700mV Reference
- Applications: Power Modules, Networking, Telecom, Industrial
1.6-A, 1.25-MHz Buck Converter: The TPS40222 is a fixed-frequency, current-mode, non-synchronous buck converter optimized for applications powered by a 5-V distributed source.
- Internally determined operating frequency, soft-start time, and control loop compensation
- 1.25-MHz switching frequency and small 3x3 package size
- Applications: Hard Disk Drive, Digital Set Top Box, VOIP modems, Core and IO Voltages for ASICs, DSPs, FPGAs and Microprocessors
Digitally Managed Push-Pull Analog PWM Controllers: Designed to interface directly with DSPs or microcontrollers, the UCD8220 is an industry-first PWM controller featuring an analog control technique incorporating digitally managed control.
- Applications: Battery Chargers, Digitally Managed Switch Mode Power Supplies
DATA CONVERTERS
Precision, 24-Bit ADCs for Bridge Sensor Applications: The ADS1232 and ADS1234 are 24-bit, ΔΣ ADCs that provide a complete front-end solution for bridge sensor applications.
- Effective Resolution: 23.5 bits
- Selectable Data Rates: 10SPS or 80SPS
- Applications: Weigh Scales, Strain Gauges, Industrial Process Control
ADS1234: Price (1 ku) $4.50
Fastest Cycling, 16-Channel, 24-bit ADC: The ADS1258 is a 16-channel (8 differential) ΔΣ ADC that provides single-cycle settled data at channel scan rates from 1.8k to 23.7kSPS with only 42-µs latency (or conversion time).
- Fixed Channel or Automatic Channel Scan
- Applications: Medical, Process Control, Machine Monitoring, Multi-Channel Instrumentation
16-Bit, 250-kSPS, True Bipolar Parallel ADC: The ADS8505 offers the lowest offset and gain (full-scale) errors with low drift. It features a full parallel interface, ±10V input range, ±3.0LSB INL, and ±1.0LSB DNL.
- Applications: Industrial Process Control, Medical Equipment, Instrumentation
12-Bit, 250-kSPS True Bipolar Serial ADC: The ADS8508 is a 5-V single supply true bipolar input range ADC with SPI-compatible serial output with daisy-chain (TAG) feature.
- Input Ranges: 4V, 5V, 10V, ±3.33V, ±5V and ±10V
- 70mW (typ) power dissipation at 250kSPS
- Applications: Industrial Process Control, Medical Equipment, Instrumentation
12-Bit Analog Monitoring and Control Circuit: The AMC7823 is a complete subsystem for multi-channel analog monitoring and control. Integrated features include a 12-bit ADC with eight analog inputs, eight 12-bit DACs, four analog input out-of-range alarms and six general-purpose digital I/Os.
- Applications: Communications, ATE, Industrial Control, Medical Equipment
Dual, 12-Bit, Ultra-Low Glitch Vout DAC: The DAC7553 is an ultra-low glitch (0.1nV-s), ultra-low crosstalk (-100dB), voltage output DAC that offers breakthrough performance by keeping unwanted transients under 1mV and <100ns during any two-code transition. It also provides true 12-bit integral and differential linearity.
- Applications: Closed-Loop Monitoring and Control, Data Acquisition Systems
24-Bit, 96-kHz, High-Performance Stereo Audio ADC: The PCM1807 is a high-performance, stereo ADC with single-ended analog voltage input. It features 64x oversampling frequency,-65dB stopband attenuation, 16-kHz to 96-kHz sample rate and 256-, 384- or 512-fs system clock.
- Applications: DVD Recorders, AV Receivers, Home Theater, Car AV
8- and 10-Bit Triple Video ADC: The TVP7000 is a complete solution for digitizing video and graphic signals in RGB and YPbPr color spaces. It features a 128-step programmable RGB/YPbPr clamp, 8-bit PGA, analog PLL and three 8- to 10-bit, 150/110-MSPS ADCs.
- Applications: LCD TV Monitors/Projectors, Digital Image Processing, Video Capture
AMPLIFIERS & LINEAR
Gain of 0.2 Level Translation Difference Amp: The INA159 is a unique precision, G=0.2 level-shifting difference amplifier designed to interface ±10V signals to single-supply ADCs, particularly those with 4.096-V or 5-V references. Features include 1.5MHz bandwidth, 15V/µs slew rate and 0.2% (max) high gain accuracy.
- Low Offset Voltage: ±100µV
- Low Offset Drift: ±1.5µV/°C
- Single-Supply Operation: 1.8V to 5.5V
- Applications: Industrial Process Control, Data Acquisition, Test Equipment
Wideband, Fully Differential Op Amp: The THS4508 is designed for data acquisition systems using a 5-V supply and ground-referenced input signals. It offers very low noise, 2.3nV/vHz, low harmonic distortion, -72dBc HD2 and -79dBc HD3 at 100MHz with 2Vpp, G=10dB, and 1k? load. Settling time is 8ns to 0.1% (2V step).
- Applications: 5-V Data Acquisition Systems, Wireless Communications, Medical Imaging
Wideband, Low-Noise, Low-Distortion Fully Differential Amp: The THS4511 high-performance amp has been optimized for use in 5-V single supply data acquisition systems.
- Common-Mode Input Range Includes the Negative Rail
- Small Signal Bandwidth: 1.6GHz (Gain = 0dB)
- Applications: Medical Imaging, Wireless Infrastructure, Test and Measurement, Industrial
3-Channel SD/ED/HD Video Amp with I2C Control: The THS7303 low-power, single-supply 2.7V to 5V, 3-channel integrated video buffer incorporates a selectable 5th-order Butterworth filter to eliminate data converter images.
- Selectable 5th-order LPF at 9/16/35-MHz and 190-MHz Bypass Mode
- Applications: Set-Top Box, PVR/DVDR, USB & Portable, and Projector Pass-Through Video Buffering
Dual, 180-MHz, Single-Supply, RRO Op Amps: The OPA2300 and OPA2301 are true single-supply amplifiers capable of directly driving a 5V single supply, 1.25-MSPS ADC with accurate 16-bit settling to within 150ns. Rail-to-rail output is 75mV from both rails, quiescent current is 9.5mA and are specified for a 2.7-V to 5.5-V supply range.
- Applications: ADC Input Drivers, Portable Instrumentation, IR/RF Amplifiers, Active Filtering
Rail-to-Rail I/O, 2-A, Power Op Amp: The OPA567 2-A output current op amp operates on low-voltage supplies, features diagnostic flags for current limit and temperature and has an exposed thermal pad for enhanced thermal and electrical characteristics.
- Output Swings to: 150mV of Rails with Io = 2A
- Adjustable Current Limit
- Applications: Optical Networking, Test and Instrumentation, Medical Equipment
AGC Amp for TV Tuner: The SN761663 is an AGC amplifier for the TV tuner system of a digital TV, CATV or STB. The circuit consists of three stages of controlled-gain amplification, followed by a fixed-gain output amplifier.
- Wide Gain-Control Range: 67dB (typ)
- Applications: Digital TV, DVD Recorder, Digital CATV, STB, PC TV
16-Channel LED Driver with Grayscale: The TLC5941 is a 16-channel, constant-current sink LED driver featuring 1% channel-to-channel accuracy, up to 80-mA drive capability per channel, 2.7% chip-to-chip accuracy, 3-V to 5.5-V input voltage range and LED Open Detection.
- Applications: Large-Form LED Displays, Stadium Scoreboards, Ad Displays
Dual Rail-to-Rail Output CMOS Op-Amp: The TLV342 dual amplifier features low power combined with rail-to-rail outputs, making it suitable for long-life battery applications.
- Applications: Cordless/Mobile Phones, PDAs, and Laptops
4.5-ns, RRIO, High-Speed Comparators: The TLV3501 (single) and TLV3502 (dual) are high-speed, push-pull output comparators with/without shutdown. Built-in hysteresis reduces sensitivity to noise.
- Applications: Wireless Base Stations, ATE, Threshold Detector
TLV3502: Price (1 ku) $2.20
4-20mA Current-Loop Transmitter: The XTR117 is a precision current output converter designed to transmit analog 4- to 20-mA signals over an industry-standard current loop. It provides an on-chip 5-V voltage regulator and 7.5-V to 40-V wide-loop supply range.
- Applications: Pressure/Temperature/Humidity Transducers, Industrial Process Monitors
INTERFACE
Full Duplex RS-485 Transceivers: The SN65HVD3x and SN65HVD5x devices are 3-state differential line drivers and differential-input line receivers operating on 3.3-V and 5-V power supplies, respectively.
- 1/8th Unit-Load Option Available (up to 256 nodes on the bus)
- Bus-Pin ESD protection: 15kV HBM
- Applications: Utility Meters, DTR/DCE Interfaces, Building Automation
SN65HVD33: Price (1 ku) $1.85
NEW INDUSTRIAL CONTROL WEB SITE
Visit Industrial Control DesignLine's library of design how-to articles, product reviews, and news on motor control, process control, sensors, robotics and networking to assist you in the design process. www.IndustrialControlDesignLine.com
ANALOG TRAINING AND SEMINARS
December 14th Analog eLab: Voltage Feedback or Curent Feedback Op Amps in High-Speed Applications: Pros, Cons and Design Tricks. Over the past 10 years, a wide range of high-speed amplifiers have emerged to support the needs of high-frequency design applications. Two particular types of amplifiers have found wide application; the current feedback amplifier and the more common voltage feedback amplifier. Each of these devices has particular applications for which they are best suited. In this eLab we will explore the differences between these devices, namely their internal construction, and what that means for the external application circuit.
Additionally, several key performance characteristics and design tricks will be illustrated using lab equipment similar to that used in characterizing these devices. Look for an informative discussion into pulse response, slew rate, full-power bandwidth, bandwidth control and distortion measurement.
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. Registration opens Oct. 4. The conference takes place Feb. 28 to Mar. 2, 2006.
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
"Discover
the Techniques, Trade-Offs of Power-Path Management for Portables,"
by Masoud Beheshti. Power Management DesignLine, 10/4/05.
"Interleaving
DC/DC Converters Boosts Efficiency and Voltage," by John Betten
and Robert Kollman. EDN, 10/13/05.
"Creating
Uniform LED Intensity in RGB Billboard and Video Displays, Part One: Equal
Brightness," by Michael Day and Tarek Saab. eeProductCenter.com
and Video/ImagingDesignLine.com. 10/17/05.
"The Secrets
of Successful Communications Using LVDS," by Jim Dietz and Richard
Hubbard. EDN 10/13/05.
"Designing SAR ADC
Drive Circuitry," Part 2 of 3, by Rick Downs and Miroslav Oljaca.
analogZONE, 10/3/05.
"Partition
the Power Management In Your Next-Generation Mobile Handset,"
by Patrick Heyer. CommsDesign.com and MobileHandsetDesignLine.com, 10/31/05.
CUSTOMER SUPPORT CONTACT INFORMATION
| Product Information Center | - Americas |
| Product Information Center | - Europe, Africa, Middle East |
| Product Information Center | - Asia/Pacific |
| Product Information Center | - Japan |
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