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Content posted in February 2006
Lower system costs with tiny D/A converter
Articles  
2/28/2006   Post a comment
Analog Devices, Inc. expanded its nanoDAC family with eight devices including a 16-bit, quad, digital-to-analog converter in a 3 x 3-mm, 10-lead LFCSP.
Delicate balancing acts ensure balun performance
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2/28/2006   Post a comment
Signals often need to transition from unbalanced to balanced (differential) mode (with respect to ground) or vice versa; this article discusses some ways to do this and the design considerations involved
Op amps draw 13 uA per amp
Articles  
2/27/2006   Post a comment
Exclusive to eeProductCenter: Linear Technology Corp. says its 1.8-volt dual and quad operational amplifiers are the first available in a tiny DFN package.
Excuse me, did you say ICs available for 25 years?
Articles  
2/24/2006   Post a comment
Last summer, I watched as the "telephone company" (whatever that term means now) replaced all the poles on our street, over a month-long period. This carefully choreographed procedure was itself interesting, and had more interleaved steps than I expected. When I asked the crew chief why they were replacing the poles, he replied, "it's on our schedule to replace these poles every 25 years, as preventive maintenance."
A/D simplifies digital audio conversion blocks
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2/24/2006   Post a comment
Cirrus Logic Inc. claims these are the smallest stereo analog-to-digital (A/D) converters available for consumer and automotive audio applications.
Triple-throw switches boost audio signals
Articles  
2/23/2006   Post a comment
Maxim Integrated Products Inc. says these dual, single-pole, triple-throw analog switches handle negative signals with a single positive power supply to reduce external components and improve audio signal quality.
Fast, simple one-shot pulse stretcher detects nanosecond events
Articles  
2/22/2006   Post a comment
Using a comparator and some carefully chosen passive components, you can stretch those extremely short pulses so they can be seen by processors and DSPs.
ICs support voltage level translation between 2.5-, 3.3- and 5-V buses
Articles  
2/21/2006   Post a comment
TI has released three 4-bit bidirectional translating (level-shifting) I²C and SMBus multiplexers and switches that support voltage level translation between 2.5-, 3.3- and 5-V buses required in mixed voltage I²C systems.
Chip maker launches single-chip level translators for mobile phones
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2/21/2006   Post a comment
STMicroelectronics has developed what it claims are the first single-chip level translators for mobile phone memory cards.
Camera chip integrates several functions for mobile apps
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2/21/2006   Post a comment
STMicroelectronics' latest single-chip 1.3-megapixel (SXGA) camera subsystem for mobile applications integrates a CMOS sensor with a digital image processor and analog system functions in a tiny package.
Clock synthesizer enables one-time-programming
Articles  
2/20/2006   Post a comment
Maxim Integrated Products says this cost-effective voltage-controlled crystal oscillator (VCXO) clock generator for communications systems such as routers and switches only needs to be programmed once.
White LED driver includes overtemperature protection
Articles  
2/17/2006   Post a comment
White LEDs have many applications, and the right circuit makes sure they don't overheat and fail prematurely or burn out
E-field sensor yields nonmechanical touch (or not) switch
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2/17/2006   Post a comment
Use electrodes for proximity or touch switches, driven and sensed by an electric-field specific IC
High-resolution converter rejects 50/60 Hz noise
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2/17/2006   Post a comment
Microchip Technology Inc. expanded its low-power, high-resolution delta-sigma analog-to-digital (A/D) converter family with what it claims is one of the lowest power, smallest A/D converters available at 22-bit resolution.
Light-to-digital converters seek small displays
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2/16/2006   Post a comment
Texas Advanced Optoelectronic Solutions, Inc. (TAOS) is beefing up its Light-to-Digital Converter offering with two low-voltage versions for mobile phones, PDAs, portable media players, cameras, handheld games and camcorders.
Agilent claims simulation breakthrough for non-linear circuits
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2/16/2006   Post a comment
Agilent Technologies claimed a breakthrough in its core EDA frequency-domain simulation technology that it said provides crucial circuit performance information that can help avoid design errors.
Crosspoint switch boosts signal integrity
Articles  
2/15/2006   Post a comment
Vitesse Semiconductor Corp. is unleashed a 12-port crosspoint switch with enhanced signal equalization technology that it says will raise the bar in terms of signal integrity performance and flexibility.
Quantum offers touch sensor chips for sliders and scroll wheels
Articles  
2/15/2006   Post a comment
Quantum Research Group has released enhanced versions of its QSlide and QWheel chips, known as the QT411 and QT511 respectively. The devices, which are available in TSSOP packages, are targeted primarily at portable and home appliance applications
E-field sensor IC finds new markets
Articles  
2/14/2006   Post a comment
Freescale Semiconductor today expanded its line of electric field (E-field) sensing integrated circuits (ICs) from automotive applications to the appliance and industrial markets.
Codec integrates Class-D speaker driver
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2/13/2006   Post a comment
Wolfson Microelectronics plc today rolled out an integrated codec with a filterless Class-D stereo speaker driver that is said to consume 10 milliwatts in playback mode.
Use PSpice models to estimate amplifier noise
Articles  
2/10/2006   Post a comment
PSpice can help you estimate noise in critical analog circuits, but it can be complicated when multiple noise sources must be considered.This article shows a simplified approach which gets you a good estimate.
Tadiran touts wristwatch video receiver
Articles  
2/10/2006   Post a comment
Tadiran Communications has developed new communications technology that delivers video to a tiny receiver small enough to fit in a wrist watch.
Converters get their Powerpoint day at ISSCC
Articles  
2/10/2006   Post a comment
The IEEE annual International Solid State Circuits Conference in San Francisco this week was a proud and impressive display of devices and ideas. A/D converters--both Nyquist and oversampling types--were the subject of key sessions. Here's a brief report on just a few of the designs presented, all substantiated by real silicon.
LDO regulator dishes 150-mA output
Articles  
2/10/2006   Post a comment
Rohm's latest CMOS low dropout regulator (LDO) is said to feature an output current of 150 milliamps and high output voltage accuracy (±1 percent).
Mux combines low jitter and high bit rate
Articles  
2/9/2006   Post a comment
Touting true operation from DC to 20 GHz, Inphi Corp.'s 4:1 broadband multiplexer (mux) was designed for accurate testing across a wide range of frequencies and applications.
Codec enables hands-free operation in portable apps
Articles  
2/9/2006   Post a comment
STMicroelectronics today unleashed a low power, asynchronous, stereo codec featuring integrated amplifiers for headphones and hands-free operation in mobile phones and handheld multimedia players.
Oxford 8-channel UART / PCI controller tackles high density serial connectivity
Articles  
2/8/2006   Post a comment
Combining eight high performance UARTs and a PCI compliant host interface in a single chip, the OX16PCI958 communications controller from Oxford Semiconductor provides designers with the means to dramatically simplify multi-port serial to PCI bus design.
Multiplexers operate over wide voltage range
Articles  
2/7/2006   Post a comment
Vishay Intertechnology, Inc. released a trio of precision, low-voltage, monolithic CMOS analog switches that are said to combine a wide voltage range, low leakage, and tight on-resistance matching for precision signal switching and routing.
Digital potentiometer sits in 2 x 2-mm package
Articles  
2/7/2006   Post a comment
Maxim Integrated Products Inc. claims this is the smallest 128-tap, low-cost nonvolatile digital potentiometer around.
8 Mbps UART delivers high speed to industrial applications
Articles  
2/3/2006   Post a comment
Exar Corp. has expanded its family of Universal Asynchronous Receiver Transmitter devices with the introduction of eight channel 8 Mbps UART targeted at the high speed data transmission requirements of a variety of industrial applications
What happened to the 42V auto?
Articles  
2/3/2006   Post a comment
A few years ago, there was lots of serious talk of cars transitioning to 42V supplies, either in addition to, or to replace, the venerable 12V system they have used for decades. Why didn't this prediction materialize? More puzzling, how have the dire problems, that were predicted if we stayed with 12V systems, been avoided?
1-GHz multiplexers handle high resolution signals
Articles  
2/3/2006   Post a comment
Intersil Corp. claims to have broken the current bandwidth barrier with triple RGB or YPbPr multiplexers with 1 GHz of bandwidth for high-speed analog video-input switching applications.
Analog switches housed in chipscale package
Articles  
2/2/2006   Post a comment
Pericom Semiconductor Corp.'s family of analog switches for mobile terminal applications are said to feature chipscale packaging, very low on-resistance, and wide voltage ranges.
Voltage comparators deliver high output
Articles  
2/2/2006   Post a comment
Advanced Linear Devices Inc. (ALD) added two quad voltage comparators to its precision monolithic high performance line that are said to provide a 0.24-amp output drive.
Video driver sends cell phone images to large displays
Articles  
2/1/2006   Post a comment
Fairchild Semiconductor claims this is the smallest video filter/driver available for driving video images from cell phones to televisions, computer monitors or other large display products.




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