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Content posted in September 2006
What does it take for analog/mixed-signal signoff?
Articles  
9/29/2006   Post a comment
Analog/mixed-signal EDA and signoff need to use the latest ideas and tools to be efficient and successful, says Guest Columnist Sandipan Bhanot of Knowlent Corp
Rail-to-rail op-amps draw less than 1 microamp
Articles  
9/28/2006   Post a comment
Linear Technology's LT6003 (single), LT6004 (dual), and LT6005 (quad) rail-to-rail op-amps draw less than 1 microamp in operation— a new benchmark for precision low-voltage devices and tiny footprint, according to the company.
Add-on digital filter IC facilitates quick monitoring system upgrades
Articles  
9/28/2006   Post a comment
Quickfilter Technologies' QF1D512 SavFIRe is a finite impulse response (FIR) digital filter that designers can add between an existing analog-to-digital converter (ADC) and the host controller, thus offering a fast and simple upgrade path for existing systems.
LVDT signal conditioner supports vehicular testing
Articles  
9/27/2006   Post a comment
Touting universal applicability and extended functionality, Macro Sensors single-channel, low-voltage signal conditioner, the LVC-2500 DC-LVDT, supports all standard LVDT, RVDT and VRT half-bridge sensors for 24-volt PLC systems and 12-volt vehicular testing applications.
Typewriter revelation shows timeless lesson
Articles  
9/26/2006   Post a comment
This now-obsolete writing instrument teaches us a still-valid lesson. Pay attention when you do your designs....
Bill Schweber, Site Editor, Planet Analog
Analog drivers/receivers improve SNR, reach of copper datacenter links
Articles  
9/26/2006   Post a comment
Signal-transparent IC combines equalization and SNR improvement for Gbps links
Dual GPS/Galileo chips to exhibit sub-second acquisition times
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9/26/2006   Post a comment
A family of GPS and Galileo-ready satellite navigation and position location chips and chipsets are coming. These devices, when they roll off the fab lines early next year, will exhibit acquisition performance of under one second. That ultra-fast acquisition time will be due to a 50-channel GPS architecture, with over one million correlators and separate acquisition and tracking engines capable of massively parallel searches.
Using high-side current-sense amplifiers with input series resistors
Articles  
9/26/2006   1 comment
This article explains how to assess performance characteristics of current-sense amplifiers, when measuring a small, high-side voltage across a current-sense resistor on a high-voltage rail.
Compact HDD motor controller also saves on power
Articles  
9/26/2006   Post a comment
STMicroelectronics' L7208 motor controller IC for 1.8-inch and sub-1.8-inch hard disk drives (HDDs), touting an ultrathin LGA package and minimal power draw, integrates its power FETs and all of the circuitry for driving the spindle motor and voice coil actuator.
IR thermometer simplifies remote measurement in auto, medical apps
Articles  
9/21/2006   Post a comment
Melexis' MLX90614 infrared thermometer offers a cost-effective solution for non-contact monitoring in automotive and medical applications.
DAC with Class D stereo amp for games, portables delivers 2 watts
Articles  
9/20/2006   Post a comment
With the accent on extending battery lifetimes in high-density low-power portables, Wolfson Microelectronics' WM8956 stereo DAC integrates a Class D amplifier, microphone amp, and headphone output for mobile phone, media player, portable DVD, and game console applications.
New sensors + clever thinking = innovative designs
Articles  
9/20/2006   Post a comment
There are times when I have dj' vu when hearing about the latest components, whose virtues are basically "faster, better, cheaper" than their predecessors. That's why I was excited to read about a new approach to an old problem, made possible by clever combination of diverse sensors.
Bill Schweber, Site Editor, Planet Analog
Low insertion-loss SP4T RF switch chip is RoHS-compliant
Articles  
9/19/2006   Post a comment
Slated for antenna switching applications in cellphones, here's news of a RoHS-compliant SP4T solid-state switch in a PQFN package.
CPRI SerDes delivers 800-ps fiber delay-calibration accuracy
Articles  
9/19/2006   Post a comment
National Semiconductor has developed the SCAN25100 CPRI SerDes, which integrates delay calibration measurement circuitry to precisely measure basestation-to-remote radio heads (RRH) and RRH-to-RRH fiber delay components with a guaranteed ±800-ps of accuracy. The SCAN25100 CPRI SerDes can even track fiber delay changes as small as 200-ps.
Post amplifier boosts fiber optics receivers
Articles  
9/18/2006   Post a comment
Micrel's SY88343DL, a 3.2 Gbps common-mode logic, limiting post amplifier with high-gain TTL loss-of-signal detection circuitry, improves fiber-optic receiver designs.
Window comparators simplify ATE applications
Articles  
9/18/2006   Post a comment
Citing significant cost savings and real-estate benefits, Intersil's ISL55141/2/3 family of low-offset (50 mV), 65-MHz window comparators, as an alternative to bus relays, simplifies large-signal automatic test equipment applications.
Galileo-ready receiver IC to enhance consumer gear navigation
Articles  
9/18/2006   Post a comment
RFIC maker SiGe Semiconductor is sampling what it says is the world's first Galileo-ready receiver chip for consumer electronics navigation and position reporting. It's a power-managed IC using a software-based architecture. In its Standby mode, all circuits are off and the IC draws only leakage current. The IC will also decode GPS birds.
GaAs PAs come packaged and as MMICs
Articles  
9/15/2006   Post a comment
Two GaAs power amplifiers from TriQuint Semi promise to be smaller, lower-cost alternatives compared to previous-generation products. Suitable for 17-GHz through 21-GHz applications, they will be available in both MMIC and plastic surface-mount packages.
Octal ADCs advance ultraportable medical designs
Articles  
9/15/2006   Post a comment
Analog Devices' three new octal ADCs, which include the industry's first such 14-bit, high-speed device, cuts real-estate requirements by 60 percent and power consumption by 10 percent for portable instrumentation and ultrasound applications.
Low-cost analog front-end ICs bring GPON, EPON to the masses
Articles  
9/14/2006   Post a comment
PMC-Sierra has developed four inexpensive analog front-end devices (AFEs) that it claims will help OEMs lower the cost of GPON and EPON access network equipment that delivers carrier-grade triple-play services—voice, data and IPTV—to consumers worldwide.
Instrumentation amplifier combination extends CMRR frequency range
Articles  
9/13/2006   Post a comment
This composite circuit stretches the common-mode rejection ratio (CMRR) of the versatile and vital in-amp to higher frequencies
LDO delivers 1.5 amps for next-generation processors
Articles  
9/13/2006   Post a comment
Microchip Technology's MCP1827 and MCP1827S low-dropout (LDO) regulators deliver up to 1.5 amps for small-geometry based embedded processors/controllers and next-generation logic cores for computer, industrial and power-supply applications.
Power-One and Micrel introduce solution for low current applications
Articles  
9/13/2006   Post a comment
Power-One and Micrel jointly announce a Z-One compatible solution for low-current applications based on Micrel's linear regulators and Power-Ones' digital power managers.
Low VIN Synchronous Step-Down DC/DC Converter Delivers up to 250mA from a 2mm x 3mm DFN
Articles  
9/12/2006   Post a comment
Linear Technology Corporation announces the LTC3549, a high efficiency, 2.25MHz, synchronous buck regulator that can deliver up to 250mA of continuous output current from input voltages as low as 1.6V. Using a constant frequency and current mode architecture, the LTC3549 operates from an input voltage range of 1.6V to 5.5V, making it ideal for single cell Li-Ion, or dual-cell alkaline/NiCad/NiMH applications.
Rocco Petrone passed away....so what?
Articles  
9/12/2006   Post a comment
Among the more unnoticed events of August was the death, at age 80, of Rocco Petrone. Who was he? What's sad about this event passing almost unnoticed....?
Bill Schweber, Site Editor, Planet Analog
Class D audio amp touts lowest noise floor
Articles  
9/11/2006   Post a comment
Texas Instruments' TPA203xD1 series of class-D audio amps for portable consumer electronics, taking half the board real-estate of competing solutions, claims an A-weighted noise floor of 27 µVrms, the lowest in the industry. TI says these amps improve PSRR by 20 dB and CMRR by 12 dB over competing devices.
32-by-32 crosspoint switches handle QXGA video
Articles  
9/8/2006   Post a comment
Analog Devices says its 32-by-32 analog crosspoint switches, the AD8117 and AD8118, with a bandwidth of more than 500 MHz are the industry's first such single-chip devices for efficiently routing Quantum Extended Graphics Array (QGXA) video signals.
D2 demos first VoIP solution for OCTEON
Articles  
9/8/2006   Post a comment
D2 Technologies has announced the successful demonstration of the first VoIP solution on Cavium Networks' OCTEON processor family.
16-by-16 crosspoint switch integrates DC-restore circuitry
Articles  
9/7/2006   Post a comment
Intersil's ISL59530, a 300 MHz 16-by-16 video crosspoint switch for RGB and HDTV routing applications touts integrated DC-restore clamp circuitry to ensure black-level accuracy using at least 16 fewer external components than competitive solutions.
Will power always be analog?
Articles  
9/6/2006   Post a comment
Even the analog domain of power supply and control is "going digital"; and there's good reason for it, as well as some major concerns. Think about the pros and cons....
Bill Schweber, Site Editor, Planet Anlaog
Stereo codecs tout ultralow power consumption
Articles  
9/6/2006   Post a comment
Product Review - With the focus on extended battery run-times and optimizing the noise/power consumption tradeoff, Texas Instruments says its PCM3793 and PCM3794 stereo audio codecs for portable consumer applications are the industry's lowest-power devices of their kind.
Temperature sensor has dual SMBus interface
Articles  
9/5/2006   Post a comment
Maxim says its MAX6638, a thermal sensor with ±1°C accuracy, is the industry's first to include two independent SMBus serial ports, which allow two controllers simultaneous access to temperature data.
Single-chip cell phone device promises doubled talk-time
Articles  
9/5/2006   Post a comment
Wireless component vendor Qualcomm is pre-announcing a single-chip cell phone device. When it debuts next year, the QSC1100 will likely let CDMA2000 handset makers benefit from price barriers that had heretofore precluded some emerging markets worldwide. In addition to supporting features such as downloadable polyphonic ring tones, a speakerphone, and color displays, the QSC1100 promises to double talk-time compared to currently available CDMA2000 handsets. Can you wait?
14-bit ADC touts best-in-class SFDR at half the power draw
Articles  
9/1/2006   Post a comment
Analog Devices says its AD9254 14-bit, 150-MSPS analog-to-digital converter, with the best dynamic range of any competing ADC, consumes only 430 mW - a 50 percent reduction in power consumption over existing solutions.
Power-management IC for third-gen XScale processor offers efficiency and low supply current
Articles  
9/1/2006   Post a comment
Maxim introduces two power management ICs designed specifically for the Intel Monahans, the third-generation Intel XScale technology-based applications processors.




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