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TI Analog Connection
Your monthly update of new Analog products from TI
Early July 2006
To subscribe to the TI Analog Connection eNewsletter, please click here.
In
this Issue:
Power Management
Data Converters
Amplifiers & Linear
Clocks & Timers
Training and Seminars
Company-Authored Articles in the Media
Customer Support Contact Information
POWER MANAGEMENT
Single-Cell, Li-Ion Charge Management IC: The bq24070 is part of the
bqTINY-III™ series of highly integrated charge and system power management devices. It integrates a 2-A AC power switch, 1.5-A charge FET, current sensor, reverse blocking protection and thermal regulation.
- Simultaneously Powers the System and Charges the Battery
- Dynamically Adjusts Charge Current Based on System Voltage
- Applications: Smartphones, PDAs, MP3 Players, Digital Cameras
1-A, 1-Cell Li-Ion Charger ICs: The bq2408x bqTINY™ series are highly integrated charge management ICs ideal for low-dropout charger designs for portable applications. The devices integrate a 1-A charge FET, reverse-blocking circuitry and current sense, minimizing the need for external components.
- Charge Current: Up to 1A (max), Vin 7V
- Pre-Charge Battery Conditioning and Safety Timer
- Applications: Smartphones, PDAs, MP3 Players, Digital Cameras
Multi-Cell Battery Charger: The bq24730 is a high-efficiency, synchronous battery pack charger that uses a high-performance, analog front-end that easily interfaces to the system power management microcontroller through a hardware interface. Integrated features include soft start, charge over-current protection and IC temp monitoring.
- Synchronous Buck Converter with Fixed 300kHz and 99.5% (max) Duty Cycle
- Applications: 3- or 4-Cell Li-Ion Applications, Notebook Computers, Portable DVD Players
10-V to 40-V, Synchronous Buck Controller with Tracking: The TPS40056 is a wide input, synchronous, tracking buck controller featuring adaptive gate drivers to drive external NFETs; it is equipped with anti-cross conduction circuitry. Programmable features include soft start, fixed PWM frequency and short-circuit protection.
- Fsw: 100kHz to 1MHz
- Fixed 8.75 UVLO
- Applications: Industrial Control, DDR Tracking Regulators, Networking Equipment
5.5-V to 36-V Input, 2-A Step-Down Converter: The TPS5420 is a wide-range input voltage DC/DC converter with an integrated 110-mΩ N-channel MOSFET that provides high efficiency at 2A (3A peak). The switching frequency is preset to 500kHz to reduce the size of external components.
- Output Voltage: to 1.23V with 2% Accuracy
- Internal Soft Start Time: 15ms
- Duty Cycle: 87% (max)
- Applications: DVD, LCD Displays, Battery Chargers, Distributed Power Systems
5.5-V to 23-V Input, 3-A Step-Down Converter: The TPS5431 is a wide-range input voltage DC/DC converter with an integrated 110mΩ N-channel MOSFET that provides high efficiency at 3A (4A peak). The switching frequency is preset to 500kHz to reduce the size of external components.
- Output Voltage: to 1.23V with 2% Accuracy
- Internal Soft Start Time: 15ms
- Applications: DVD/LCD Displays, Car Audio Power Supplies, Battery Chargers
5.5-V to 20-V Input, 6-A Step-Down Converter: The TPS54550 is a wide-range input voltage DC/DC converter with an integrated MOSFET that steps down the voltage as low as 0.891V. The switching frequency is adjustable from 250kHz to 700kHz and it can deliver up to 6A output current (7.5A peak).
- Power Good, Enable, Current Limit
- 180° out of phase switching, synchronizable
- Applications: POL Regulation for Telecom/Datacom, LDC-TV Displays, Distributed Power Systems
1.2-A, Buck-Boost DC/DC Converter: The TPS63001/2/3 series of synchronous buck-boost converters is ideal for 1-cell Li-Ion/Li Polymer or 2-3-cell alkaline/NiCd or NiMH battery applications. It features 1.8-V to 5.5-V input voltage range, and can provide up to 1200mA output current at 3.3V in buck mode, or up to 800mA at 3.3V in boost mode.
- Efficiency: 96% (max)
- Quiescent Current: 50µA
- Applications: Portable Audio Players, PDAs, Cell Phones, Portable Medical
Bias Power Supply for TV and Monitor TFT LCD Panels: The TPS65161 is a very small power supply solution providing all four voltages required by thin film transistor (TFT) LCD panels. It can be powered directly from a 12-V input voltage generating the bias voltages VGH and VGL, as well as the source voltage, Vs, and logic voltage for the LCD panels.
- Input Voltage Range: 8V to 14V
- Switching Frequency: 500kHz, 750kHz, fixed
- Output Voltage Range: Up to 20V
- Applications: LCD TVs, LCD Monitors
Integrated, Single-Cell Li-Ion Battery and Power Management IC: The TPS65810 is a fully integrated battery management and power conversion solution for 1-cell, Li-Ion battery-powered systems. The device integrates a battery charger, ADC, two DC/DC step-down converters and one WLED boost converter, a PWM and RGB LED driver as well as 7 LDOs. A SIM card supplies benefits for wireless systems.
- 1.5-A Battery Charger w/Dynamic PowerPath Management
- Fast I²C Interface, Fully Programmable
- 3 GPIOs
- Applications: Smartphones, PDAs, Digital Radio, GPS Equipment
150-mA RF LDO with Ultra-High PSRR: The TPS717xx family of low-dropout, low-power linear regulators offers ultra-high PSRR (70dB at 1kHz) while maintaining 50-µA ground current. It is available in fixed output (0.0V to 3.3V) or adjustable output voltages (0.9V to 6.2V). Noise is 30µV (typ).
- 3% Overall Accuracy
- Stable with 1µF Ceramic Capacitor
- Applications: Mobile Phones, Precision Measurement Devices, WLAN, Bluetooth
DATA CONVERTERS
16-Bit, High-Speed ΔΣ ADC: The ADS1610 is a 10-MSPS data rate, high-precision, ΔΣ ADC complete with on-chip digital filter. Oversampling topology provides system-level benefits to simplify designs and improve performance over pipelined alternatives.
- Signal Bandwidth: 4.9MHz; SNR: 86dBFS; SFDR: 95dB; THD: -94dB
- Low Group Delay: 3µs
- Applications: Communications, ATE, Medical Imaging, Scientific Instrumentation
Dual, 12-Bit, 65-MSPS, Parallel Output ADC: The ADS5232 is a dual-channel, high-speed ADC that uses digital error correction techniques to provide excellent differential linearity for demanding imaging applications. It features 371mW low power, +3.3-V operation and 1.5- to 2-Vpp analog input range.
- SNR: 70.7dB at Fin = 5MHz
- SFDR: 86dB at Fin = 10MHz
- Low DNL: ±0.3LSB
- Applications: Mid-/High-End Ultrasound, Communications IF Processing, Video/CCD Digitizing
14-Bit, 80-MSPS, Ultra-High SFDR ADC: The ADS5433 features increased SFDR performance (96.5dBc [typ] at 30MHz Fin) for improved receiver sensitivity and better adjacent channel rejection in wireless receiver designs. It maintains outstanding low noise and linearity over the frequency range from base-band to 200kHz.
- High SNR: 74.4dBc at 30MHz Fin (typ)
- Power Dissipation: 1.85W
- Single Supply: 5V
- Applications: Wireless Communications, Video and Imaging, Instrumentation
18-Bit, 1-MSPS Parallel ADC with Unipolar Input: The ADS8481 is a zero-latency, 0~4.2V unipolar (pseudo-differential) input ADC with inherent sample/hold and internal 4.096-V reference. Other features include low ±0.2ppm/°C offset error drift, ±0.6ppm/°C gain error drift and 18-bit NMC ensured over temperature.
- INL: +1.9/-0.5LSB (typ); ±3.5LSB (max)
- DNL: +0.7/-0.5LSB (typ); +1.5/-1LSB (max)
- Applications: Medical Instruments, Optical Networking, Data Acquisition Systems
Quad, Digital Filter for ΔΣ Modulators: The AMC1210 is a 4-channel, digital filter designed specifically for current measurement and resolver position decoding in motor control applications. The four digital filters are independently programmable.
- 1 Serial and 3 Parallel Interface Options
- Flexible Interrupt Mode
- Applications: Motor Control
12-Bit, Single-Channel, 4-Quadrant Multiplying DAC: The DAC7811 low-power, 12-bit, 4-quadrant multiplying DAC complete with internal reference and output amplifier is available in a low-profile 3x3 SON package for portable applications. It features a 10-MHz reference bandwidth, -105dB THD and high-speed interface up to 50MHz.
- INL: ±1LSB (max)
- Micropower Operation: 5µA at 5V
- Applications: Portable Systems, Process Control, Data Acquisition Systems
16-Bit, Ultra-Low Glitch, Vout DAC: The DAC8550 is an ultra-low glitch (0.1nV-s), ultra-low crosstalk, low power (200-µA max) voltage output DAC offering 2s complement input and power-on reset to mid-scale options. It is 16-bit monotonic over temperature, has rail-to-rail Vout and SPI-compatible serial interface up to 30MHz.
- Relative Accuracy: 8LSB (max)
- Settling Time: 10µs (max)
- Applications: Closed-Loop Monitoring and Control, Data Acquisition Systems
16-Bit, Parallel, 4-Quadrant Multiplying DAC: The DAC8820 is a single-channel, high-performance, 4-quadrant multiplying DAC with a 16-bit, high-speed parallel interface. Other features include 5-µA at 5-V micropower operation, along with wide reference of ±15V, 10MHz, and -105dB harmonic distortion.
- INL: ±1LSB (max)
- Settling Time: 0.5µs
- Applications: Closed-Loop Monitoring and Control, Process Control
4-Channel, Video Decoder with Independent Scalers: The TVP5154 is a 4-channel, low-power, NTSC/PAL/SECAM video decoder with each channel being independent and having a programmable polymorphic scaler. Outputs formats are 8-bit ITU-R BT.656 format with embedded syncs or 8-bit 4:2:2 with discrete syncs.
- Power Consumption: <720mW (typ)
- Applications: Surveillance Cameras, Other Multi-Channel Video Inputs
AMPLIFIERS & LINEAR
Dual Op Amp, Dual Comparator and Adjustable Vref: Integrating a dual op amp, dual comparator and a high-accuracy adjustable voltage reference, the TSM102A and TSM102 provide a space-saving, cost-effective solution for power supply design and signal detection applications.
- Wide Vcc Range: 3V to 24V
- Tight Vref Accuracy: 0.4% for TSM102A
- Single Supply: 0V to Vcc-1.5V (comparator); 0 to Vcc-1.8V (op amp)
- Applications: Window Comparator, Level Translation, Sequencing, Battery Charging
Temperature Sensor in Chip-Scale Package: The TMP105 temp sensor offers 50-µA Iq, 9- to 12-bit selectable resolution, and is 1.8-V I²C bus capable—an ideal combination for use with modern DSPs, microprocessors and microcontrollers.
- Accuracy: ± 2.0°C (max) from -25°C to +85°C
- Standby: 0.1µA
- No Power-Up Sequence Required
- Applications: Cell Phones, Battery Management, HVAC
Low-Power Temperature Sensor in Chip-Scale Package: The TMP106 temp sensor offers 50µA Iq (typ), 9- to 12-bit selectable resolution, and a standard I²C interface.
- Accuracy: ±2.0°C (max) from -25°C to +85°C
- Standby: 0.1µA
- No Power-Up Sequence Required
- Applications: Cell Phones, Battery Management, PC Peripheral Temp Monitoring
CLOCKS & TIMERS
Low-Jitter, PLL-Based Clock Multiplier and Divider: The CDCF5801A low-jitter clock multiplier provides multiplication factors of x1, x2, x4, x8 from an input clock of 12.5MHz to 240MHz and for output frequencies between 25MHz and 280MHz. Output pins can be put into high-Z state for power savings.
- Programmable, Bidirectional Delay Steps: 2.6mUI (down to 10ps)
- Differential/Single-ended Output
- Applications: Telecom, Wireless Infrastructure
TRAINING AND SEMINARS
New TI Analog Design Center: From online training and webcasts to device selection, design, simulation and samples, TI's new Analog Design Center provides intuitive tools to help you identify the best solutions for your needs. Easily go from online training or a Webcast to quick search or parametric search. In addition, use TI's selection guides and solutions guides to help you find the optimal devices for your design. Move to a working solution using TI's design tools, reference designs and calculation utilities. Next, perform in-depth behavioral analysis of your design using TINA-TI, a fully functional version of TINA loaded with a library of TI macro models.
Whatever design stage you’re in, TI can help. Visit TI's new Analog Design Center at www.ti.com/analogdesigncenter.
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 recent Webcasts, along with many others, are archived online for you to view at your convenience.
- Required Analog Support for Digital Media-Based Systems
- Power Concerns for LEDs Used for Display Lighting
- Optimizing Power in Low-Power Wireless Systems
- Managing Noise and Ground in Precision Analog System Applications
- Optimizing Analog-to-Digital Conversion in DSP-based Applications
- Voltage Feedback or Current Feedback Op Amps in High-Speed Applications: Pros, Cons and Design Tricks
- Designing with Power Modules: Transient Response, Noise Reduction and Minimizing Capacitors
- Elements of the Analog Signal Chain
Visit the Analog
eLab home page to view any of these Webcasts.
ZigBee™
Training Classes: This hands-on, two-day course in Waltham
MA will provide a solid foundation both in ZigBee protocol and in Z-Stack-based
product development. Get face-to-face access to expert assistance and
answers that address your specific needs. Even if you are currently just
evaluating ZigBee, our training course is designed to get you started
the right way.
COMPANY
AUTHORED ARTICLES IN THE MEDIA
“How
far—and how valid—is the prospect of autonomous vehicles,”
by Gene Frantz and Pascal Dorster. Automotive DesignLine, June
2006.
"Zigbee-Enabled
Cost-Effective and Power-Friendly Wireless Solutions," by Khanh
Tuan Le. Wireless Design Magazine Online, June 2006.
“The
bridge to true 24-bit color on mobile phones,” by David Mulcahy.
ECN Online, May 2006.
“Pre-zero
crossing detector,” by John Bottrill. Planet Analog,
May 2006.
“Video
Systems: Analog requirements and implementation of video amplifiers/filters,”
by Randy Stephens. Video/Imaging DesignLine, May 2006.
“Flat
panel audio design where only the screen is flat—not the audio,”
by Kevin Belnap & Yang Boon Quek. Audio DesignLine, May 2006.
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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