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TI Analog Connection
Your monthly update of new Analog products from TI
September 2005
To subscribe to the TI Analog Connection eNewsletter, please click here.
In
this Issue:
Power Management
Data Converters
Amplifiers & Linear
Interface
Video Processing
Analog Switches
my.TI enewsletter
Analog Training and Seminars
Company-Authored Articles in the Media
Customer Support Contact Information
POWER MANAGEMENT
Integrated Handheld Battery and Power Management IC: The TPS65800 extends battery life in portable designs while occupying up to 70% less board space than discrete solutions. The device integrates 2 DC/DC converters, 7 LDOs, GPIOs, an ADC, RTC and SIM supply, RGB and WLED driver, a battery charger, and an I2C interface.
- DC/DC Switch-Mode Converters Support Greater than 90% Efficiency
- Dynamic Power Path Management Technology Allows the IC to Power the System While Independently Charging A One-Cell Li-Ion Battery From Either a USB or AC/DC Wall Adapter Power Source
- Applications: Single-Cell, Li-Ion Powered Communications and Multimedia Devices with Multiple Voltages, SmartPhones, Portable Media Players, Satellite Radio, and GPS Systems
USB/AC Charge and Dynamic Power-Path Management IC: The bq24038 provides system power management for single-cell, Li-Ion applications. The device automatically selects the USB port or the AC adapter as the system's power source, which reduces the battery's charge/discharge cycles and allows for proper charge termination and for the system to run with an absent or defective battery pack.
- Dynamically Adjusts Charge Current Based on System Voltage
- Supports up to 2-A Total Current, up to 1.5-A Charge Rate from Adapter
- Applications: Smartphones, PDAs, MP3 Players, Digital Cameras
Battery-Pack Security and Authentication IC: The bq26150 provides a method for authenticating battery packs to ensure that only authorized batteries are used in the end application. It uses a 96-bit unique device ID, device-unique 16-bit seed and a 16-bit, device-specific CRC to provide security. The bq26150 communicates over a one-wire, bidirectional serial interface.
- 16 Bytes of User-Programmable Nonvolatile Memory
- Low-Power Operation: <30µA
- Applications: Cell Phones, PDAs, MP3 Players, Digital Cameras, Internet Appliances
3-MHz, 500-mA, Step-Down DC/DC Converters: The TPS6230x, TPS6231x and TPS6232x series are high-frequency, synchronous step-down DC/DC converters for portable applications. The devices accept an input of 2.7V to 6V, operate at a fixed 3MHz and provide an output of 0.6 to 5.4V, 500mA at up to 93% efficiency.
- Switching Frequency: 3MHz
- Output: Up to 500mA at Vin = 2.7V
- Applications: Cell Phones, PDAs, USB Devices, Digital Cameras
Power Management IC for Digital Still Cameras: The TPS65520 is a high-efficiency, 13-channel power management IC for digital still cameras that integrates power MOSFETS and operates from a 1.5V to 5V input voltage range. The device minimizes the number of external components required for phase compensation and reduces board space.
- 13 Regulator Outputs
- Constant Current for Back Lighting
- Short Circuit Protection
- Applications: Digital Still Cameras, Phone or PDAs with Cameras
PoE PD w/Integrated DC/DC Controller: The TPS23750 integrates the functionality of a PoE-PD with a primary-side DC/DC PWM controller. The PoE front end has complete 802.3af functions including detection, classification, undervoltage lockout and inrush control. The DC/DC controller section supports flyback, forward and nonsynchronous low-side switch buck topologies.
- 100-V, 0.6Ω Internal Pass MOSFET
- Inrush Limit: 140mA, fixed
- Applications: VoIP Phones, WLAN Access Points, Security Cameras/Terminals
Low Pin Count Synchronous Buck Controller: The TPS40190 is a synchronous buck controller operating from a 4.5-V to 15-V nominal supply. The device implements a fixed-frequency voltage mode power supply and is available in a 10-lead QFN package.
- Reference: 0.591V, ±1%
- Fixed Switching Frequency: 300kHz
- 1.2-A Drivers for Decreased Switching Loss
- Applications: Cable Modem CPE, Digital Set-Top Boxes, Graphics/Audio Cards
Dual Current Mode, Synchronous Step-Down Controller: The TPS51120 is a highly sophisticated, full-featured controller designed to run off a three- or four-cell Li-Ion battery and provide high power and 5V and/or 3.3V standby regulation for all downstream circuitry in a notebook computer system.
- 3.3V and 5V, 100-mA Bootstrapped Standby Regulators w/Independent Enables
- Internal Reference Accuracy: Less than 1%
- Applications: Notebook Computer System Bus and I/O
DATA CONVERTERS
16-Bit, 10-MSPS ΔΣ ADC: The ADS1610 data converter provides state-of-the-art performance at 4x the speed of the nearest competition. Featuring 86dB signal-to-noise ratio (SNR) and 95dB spurious-free dynamic range (SFDR) over a 5MHz signal bandwidth, the ADS1610 is ideal for demanding measurement applications.
- -94dB THD
- On-Chip Digital Filter Simplifies Anti-Aliasing Requirements
- Applications: Data Acquisition, Scientific Instrumentation, Test & Measurement, and Communications
8-Channel, 10-Bit, 65-MSPS ADC with LVDS Interface: The ADS5277 in an octal, 10-bit, 65-MSPS ADC utilizing serial LVDS outputs to reduce pin count/board space and simplify data routing to the host FPGA or microprocessor. Its 3.3-V supply makes it ideal for portable applications and excellent SNR performance is critical for imaging applications.
- High SNR: 61.7dBFS at 5MHz IF
- Total Power Dissipation: 845mW (External Reference)
- Applications: Medical Imaging, Industrial Ultrasonics, Portable Test Equipment
1.2-V SAR ADCs: The ADS7866 SAR ADC, the only one capable of operation from a single cell 1.2V battery, dissipates only 0.22mW of power. Packaged in a SOT-23, it is an ideal choice for low-power portable and space-constrained applications.
- Single-Supply: 1.2V to 3.6V
- Applications: Battery-Powered Systems, Medical Instruments, Isolated Data Acquisition
8-/10-Bit, 1.25-MSPS, Micro-Power ADCs: The ADS7887 and ADS7888 (10- and 8-bit, respectively) are zero-latency ADCs with 2.35-V to 5.25-V wide supply range and low power consumption of 3.8mW (3V) and 8mW (5V) at 1.25MSPS--ideal for battery-powered systems.
- Excellent Linearity: ±0.35LSB at 10 bits
- Applications: Motor Control, Optical Networking, Medical Instrumentation, USB/Battery Applications
ADS7887: Price (1 ku) $1.50
16-Bit, 600kSPS, High-Performance SAR ADC: The ADS8372 offers excellent INL and DNL performance for a 16-bit, no missing codes, 600kSPS SAR ADC with a fully differential input that provides a pseudo bipolar input range.
- Offset Drift: ±0.2ppm/°C
- INL: ±0.35LSB (typ); ±0.75LSB (max)
- DNL: ±0.25LSB (typ); ±0.5LSB (max)
- Applications: ATE, Medical Equipment, Optical Networking, Data Acquisition Systems
12-Bit, 250-kSPS, True Bipolar Parallel ADC: The ADS8504 is a true bipolar device featuring 70mW (typ) power dissipation, 5-V single supply, ±1LSB bipolar zero error, ±0.4PPM/°C drift and 8 to 12-bit parallel interface.
- Input Range: ±10V
- INL: ±0.45LSB (max)
- DNL: ±0.45LSB (max)
- Applications: Industrial Process Control, Data Acquisition Systems, Medical Equipment, Instrumentation
Ultra-Low Glitch, 12-Bit, Dual, Vout DAC: The DAC7552 is an ultra-low glitch (0.1nV-s) and ultra-low crosstalk (-100dB) rail-to-rail voltage-output DAC. It offers two 12-bit channels with true 12-bit integral and differential linearity and interfaces to microcontrollers and DSPs over a flexible, 3-wire SPI interface at speeds up to 50MHz.
- Power Supply: +2.7V to +5.5V
- Low Power: 440µA (max)
- Applications: Closed-loop Monitoring and Control, Data Acquisition
Ultra-Low Glitch, 4-Channel, 16-Bit Vout DAC: The DAC8554 an ultra-low glitch, rail-to-rail voltage output DAC that combines 16-bit monotonicity with good linearity (±12LSB max). It offers breakthrough performance by keeping unwanted transients under 1mV and less than 100ns during any two-code transmission. Its flexible, 3-wire SPI interface operates at speeds up to 30MHz.
- Glitch Energy: 0.15nV-s
- MicroPower Operation: 950µA at 5V
- Applications: Portable Instrumentation, Process Control, Data Acquisition Systems
16-Bit, High-Speed, Voltage Output DAC: The DAC8580 is the first low-cost, 16-bit, low-noise bipolar voltage output DAC with built-in digital filter. It generates output signal frequencies up to 1MHz and, using a programmable digital interpolation filter, can oversample the input word rate by 2, 4, 8 or 16.
- Fast Settling: 0.65µs
- Low Noise: 20nV/√Hz
- Applications: Waveform Generation, CRT Projection TV, ATE
16-Bit, High-Speed, Low-Noise DAC: The DAC8581 is a low-cost, 16-bit, high-speed DAC with exceptionally low noise (20nV/vHz) and extra-low glitch (0.5nV-s). It is capable of 3-MSPS output update rates, operates from dual ±5V supplies, and uses an external reference. A standard 3-wire SPI interface allows clock rates up to 50MHz.
- Fast Settling: 0.65µs
- Fast Slew Rate: 35V/µs
- Applications: Waveform Generation, Industrial Process Control, ATE
AMPLIFIERS & LINEAR
Wideband DC Restoration Circuit: The OPA615 is a complete subsystem for very fast and precise DC restoration, offset clamping, and low-frequency hum suppression of wideband amplifiers or buffers. Designed to stabilize the performance of video signals, the OPA615 can also be used as a sample/hold amp, high-speed integrator, or peak detector for nanosecond pulses.
- Propagation Delay: 1.9ns
- Bandwidth: OTA: 710MHz; Comparator: 730MHz
- Applications: Broadcast/HDTV Equipment, Telecom, CCD Image Processing
Wideband Operational Transconductance Amp (OTA) with Buffer: The OPA860 is a combination of wideband OTA and voltage buffer amp designed for high-speed systems including high-performance video, RF and IF circuitry. OTA features include external IQ control, low quiescent current (11.2mA) and high transconductance (95mA/V). Buffer features include 60mA output current and high slew rate (4000V/µs).
- Wide OTA Bandwidth: >400MHz
- Closed-Loop Buffer Bandwidth: >1200MHz
- Applications: Baseline Restore Circuits, Video/Broadcast Equipment, Communications
2.8-W, Fully Differential Stereo Audio Power Amp: The TPA6020A2 is a 2.8-W stereo, bridge-tied load amplifier that provides the maximum output power from a 5V supply. Its fully differential architecture attenuates noise caused by RF interference, power supply ripple voltage (-80dB kSVR) and common mode noise (-65dB). Integrated feedback resistors insure excellent gain matching between channels.
- 2.8W into 3Ω from 5V at 10% THD+N
- CMRR: -65dB
- Applications: Notebook PCs, Portable DVD Players, Powered Speakers
Dual, Low-Noise, Variable Gain Amplifier: The VCA2617 is a dual-channel, continuously variable, voltage-controlled gain amplifier that achieves very good noise performance at low gains, while not sacrificing high gain distortion performance. It operates on +5V single supply and consumes only 52mW per channel.
- Very Low Noise: 4.1nv/√Hz
- Bandwidth: 50MHz
- Harmonic Distortion: -53dB at 5MHz
- Applications: Ultrasound Systems, Industrial Imaging, Radar Detection
Crest Factor Reduction Processor: The GC1115 is a flexible, programmable, wideband CFR processor with a max composite bandwidth of 20MHz. It selectively reduces the peak-to-average ratio of wideband digital signals provided in quadrature I & Q format, such as those used in 3G CDMA wireless applications.
- One 20-MHz or two independent 10-MHz channels
- Programmable output PAR: down to 5dB
- Applications: CDMA/W-CDMA Basestations, 2-Channel Transmit Diversity Applications
2.5-V Precision Shunt Regulators: The LM4040A25 and LM4040B25 are fixed 2.5-V, precision shunt regulators with 0.1% and 0.2% initial accuracy, respectively. They are stable with all capacitive loads and are available in ultra-small SOT23-3 and SC70 packaging.
- Initial Tolerance (25°C): 0.1% A-grade; 0.2% B-grade
- Temp Coefficient (typ/max): 15ppm/100ppm
- Applications: Switching Power Supply, PCs, Routers, E-Meters, Medical Systems
LM4040A25: Price (1 ku) $0.90
Low-Power Rail to Rail Input and Output Op-Amp with Shutdown and Tri-State Output: Low power combined with rail-to-rail inputs and outputs make this device suitable for long-life battery applications.
- 2.7-V and 5-V Specifications
- Tri-State Output
- Applications: Wireless Phones, PDA’s, and Bluetooth
Low-Power, Dual Op Amp: The LP358 features reduced power consumption and improved battery life in portable applications.
- 85 µA Typical Supply Current
- 0.2 nA Typical Input Offset Current
- 2 nA Typical Input Bias Current
- Applications: LCD Displays, Consumer Electronics, and Portable Instrumentation
Quad Amplifier with Adjustable Voltage Reference: The TSM014WA and TSM104W combine a quad operational amplifier with an adjustable voltage reference into a single IC solution for use in the control circuitry of switch-mode power supplies.
- Low Supply Current: 375µA/Channel (typ) at Vcc = 5V
- Unity Gain Bandwidth: 0.9MHz (typ)
- Low Temperature Drift: 7mV (typ) over I-temp range
- Applications: Switching Power Supplies, Battery Chargers, Linear Regulators
INTERFACE
3-to-1 DVI/HDMI Switch: The TDMS341 is a 3-port digital video interface (DVI) or high-definition multimedia interface (HDMI) switch that allows 2 or 3 DVI or HDMI ports to be switched to a single display terminal. Four TMDS channels, one hot-plug detector and an I2C interface are supported on each port.
- Signaling Rates: Up to 1.65Gbps in Support of UXGA Display
- Isolated Digital Display Control Bus for Unused Ports
- Applications: Digital TV, Digital Projector, Audio Video Receiver
3-V to 5.5-V Single-Channel RS-232 Line Driver/Receiver with ±15kV IEC ESD Protection: The MAX3227 allows for the integration of the IEC-compliance onto the IC, alleviating concerns about ESD strikes. The auto power-down plus feature provides very flexible power saving options for portable applications.
- IEC 61000-4-2 (Level-3) ESD protection on the RS-232 pins
- Data rate up to 1Mbps
- Applications: Communications (IP Phone), Digital Cameras, Notebooks, and Handhelds (Cell Phone, PDA)
3-V to 5.5-V Multichannel RS-232 Line Driver/Receiver with ±15kV IEC ESD Protection: The MAX3232E is an IEC-61000-4-2 (Level-4) compliant version of the RS-232 function. The ESD protection provides ESD strike immunity even when the system is up and running.
- IEC 61000-4-2 (Level-4) ESD protection on the RS-232 pins
- Meets or exceeds the requirements of TIA/EIA-232-F and ITU v.28 standards
- Operates up to 250 kbit/s
- Applications: Communications (IP Phone, Routers), Set-Top Box, and Handheld (Cell Phone, PDA)
VIDEO PROCESSING
High-Performance Video Processing Platform: DaVinci™ Technology allows a high-performance video processing platform to stream directly to a handheld device, an onboard system in your car or your home entertainment center. Create unique, feature-rich devices optimized with specific applications in mind and get them to market quickly.
www.thedavincieffect.com
ANALOG SWITCHES
1-Ω and 0.9-Ω Dual SPDT Analog Switch: The TS5A23159 switch is a break-before-make and the TS5A23160 is a make-before-break. With a competitive RON, these devices are targeted at portable audio applications where efficient power delivery to the speaker with minimal signal loss is essential.
- Low ON-State Resistance: 1Ω
- Low THD: 0.01%
- 100-MHz Bandwidth
- Applications: Handheld (Cell Phone, PDA), Portable Instrumentation, and Hard Drives
TS5A23160: Price (1 ku) $0.59
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ANALOG TRAINING AND SEMINARS
DC/DC Converter Webinar: The TI System Power team will present a Tech Online Webinar September 28 at 10:00 am (EDT). The Webinar, “DC/DC Converters – Feedback Design,” will be presented by Kurt Hesse. Register now.
TI Developer Conference: Feb. 28 – Mar. 2. 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.
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 with the MSP430 MCU courses and labs that best fit your development needs. Pre-register today and save $100 off conference cost. Visit our website for more details.
European Data Transmission Seminar: This seminar includes six topics with new content containing a blend of basic principles and hands-on application examples along with layout guidelines. Topics include: Basics of Data Transmission, Application Examples and Solutions for Low- to Medium-Speed Transmission, Isolation: Capacitive Solution for a Galvanic Isolation of Your Interface Circuit, Application Examples and Solutions for High-Speed Transmission, Board Design Guidelines, and PB-free/Green/RoHS.
COMPANY
AUTHORED ARTICLES IN THE MEDIA
"Partitioning
digital power," by Dave Freeman. Electronic Products. August
2005.
"Charge
Li-Ion Battery More Efficiently by Using MHz Synchronous Switching for
Portable Devices," by Jinrong Qian. PowerManagementDesignLine.com,
8/4/2005.
"Predicting
runtime in portable applications using self-adapting algorithms for battery
fuel-gauging," by Yevgen Barsukov and Bernd Krafthoefer. PowerManagementDesignLine.com,
8/10/2005.
"Gigabit
Ethernet transceivers ignite port-count explosion," by Atul Patel.
NetworkSystemsDesignLine.com, 8/10/2005.
"PROFIBUS Design Notes,"
by Burak Ilhan. analogZONE, 8/22/2005.
"Too
good to be true, but why not shown?" by Bill Klein. Planet Analog.com.
8/23/2005.
"A
Multi-Output Power IC to Power Multi-Rail Applications," by Jeff
Falin. PowerManagementDesignLine.com. 8/31/2005.
CUSTOMER SUPPORT CONTACT INFORMATION
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| Product Information Center | - Europe, Africa, Middle East |
| Product Information Center | - Asia/Pacific |
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