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Content posted in August 2006
Real time clocks boost security, tamper detection
Articles  
8/31/2006   Post a comment
Intersil's ISL1219/21 real time clocks with improved tamper detection are suited for time stamping single events such as the moment a warranty is voided by the removal of a cover, or recurring events such as the opening and closing of a security door.
Dual-triple-quad sequencer/supervisors ease design-in
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8/30/2006   Post a comment
Offering maximum design flexibility, Maxim's MAX16025/16026/16041 dual voltage monitor/supervisors, the MAX16027/16028/16042 triple devices, and the MAX16029/16030/16043 quad devices for power-sequencing applications offer fixed and adjustable threshold-setting through logic inputs, and sequence timing via small external capacitors.
Temperature sensors expand notebook, server monitoring
Articles  
8/29/2006   Post a comment
National Semiconductor's expanded family of TruTherm temperature sensors for monitoring notebooks, desktops and servers powered by high-performance microprocessors manufactured on 65 and 90 nm processes include five new entries with extended capability.
Rail-to-rail comparators have LVDS outputs
Articles  
8/28/2006   Post a comment
Analog Devices' 10-member ADCMP60x family of rail-to-rail comparators, touted as the first to include low-voltage differential signaling (LVDS) outputs, are thus suited for driving such devices as FPGAs and ASSPs in a wide range of differential-mode applications.
PWM controller improves transient response, reduces output capacitors
Articles  
8/25/2006   Post a comment
Intersil introduces four-phase PWM buck controllers that it says delivers the industry's fastest transient response and highest system accuracy.
Quad sequencer IC touts highest accuracy
Articles  
8/25/2006   Post a comment
Analog Devices' ADM1185 quad supply voltage monitor/ sequencer is accurate to ±0.8 percent, which the company says is the best in the industry.
8-bit DAC touts highest linearity
Articles  
8/25/2006   Post a comment
austriamicrosystems AS1504/05 family of 8-bit DACs, with shutdown and mid-scale reset, claims the industry's highest linearity for devices with 8 analog output channels.
LDO has shutdown and power-good pins, bond-wire compensation
Articles  
8/24/2006   Post a comment
Microchip says its 1.5-amp LDO, suited for advanced CPU and logic cores, is the industry's first with shutdown capability, a power-good output, programmable power-good delay, and bond-wire compensation.
JFET op-amp advances IC test-and-measurement
Articles  
8/24/2006   Post a comment
NEC Electronics' JFET-class dual operational amplifier, the uPC835, touts a high slew rate, high capacitive load capability and a small package for next-generation integrated-circuit test equipment.
When failure IS an option
Articles  
8/22/2006   Post a comment
It's a tightrope walk against failures........think about the challenges and tradeoffs, sparked by the recent Dell laptop and Sony battery fires and recall...
Bill Schweber, Site Editor, Planet Analog
Capacitance measurement: Understand and use the right technique to dramatically improve results
Articles  
8/22/2006   1 comment
Even measuring "simple" passive components such as capacitors is not trivial, if you need high-accuracy results. Match the technique and instrument to the situation to achieve reliable, consistent numbers.
12-bit DAC touts best SFDR at RF
Articles  
8/22/2006   Post a comment
Maxim's 12-bit MAX19692, a 2.3 Gsps digital-to-analog converter (DAC), claims best-in-class dynamic range (SFDR) among high-speed DACs that can directly synthesize high-frequency and wideband signals in multiple Nyquist zones.
Light-to-digital sensors simplify smart brightness control
Articles  
8/22/2006   Post a comment
Intersil's ISL29001 and ISL29002 sensors convert visible light (380 to 770 nm) to a 15-bit, I2C output signal suited to smart display applications.
Stackable controller maximizes power density and energy performance
Articles  
8/21/2006   Post a comment
TI introduces a flexible PWM controller that enables power supplies to easily scale up to 320 A.
Transmitter, receiver chips extend HDTV
Articles  
8/18/2006   Post a comment
Poised for the rising tide of high-definition audio and video systems, Analog Devices has extended its line of High-Definition Multimedia Interface ICs with seven new transmitter, receiver and multiplexer chips that support HDMI v1.2a signals up to UXGA resolutions (1600-by-1200 at 60 Hz) and DVI (digital video interface) v1.0.
CMOS dual op-amp challenges bipolars for high precision, low noise
Articles  
8/17/2006   Post a comment
Linear Technology's dual-section LTC6244, the company's newest addition to its family of CMOS op amps, touts a gain-bandwidth of 50 MHz and input characteristics that challenge precision bipolar amplifiers.
Clock w/VCXO chip is cost-effective for SONET systems
Articles  
8/17/2006   Post a comment
Maxim's MAX9450/MAX9451/MAX9452 clock generators integrate a VCXO, PLL, and buffer to provide a compact and cost-effective one-chip solution for the timing chain in SONET and SDH data-communications systems and base-station applications.
On-line evaluation tool simplifies implementing DDS semiconductors
Articles  
8/16/2006   Post a comment
On-line evaluation tool simplifies task of selecting, evaluating and implementing direct digital synthesis (DDS) semiconductors in applications ranging from test and measurement equipment to wireless and satellite communications.
Cartesian loop transmitter IC: A point solution for linear RF
Articles  
8/15/2006   Post a comment
CML's newly announced CMX998 Cartesian Feedback Loop Transmitter IC is designed to provide manufacturers of two-way wireless systems with a one-chip solution for linearizing the output of the system's RF power amplifier (PA).
Audio and stereo amp ICs extend Boomer portfolio for portables
Articles  
8/15/2006   Post a comment
National Semiconductor's LM4941 audio amp and LM4985 stereo amp additions to the company's Boomer line of Class AB amplifiers, in the industry's smallest micro SMD package (0.4 mm pitch), improves performance in space-constrained portable and wireless applications.
World's thinnest Wi-Fi power amplifier chip?
Articles  
8/14/2006   Post a comment
Here's news of a 3-mm-square SiGe 2.4-GHz power amp chip that has a Z-height of 20-mils. The 79-cent device can deliver as much as 200-mW of RF, and can tolerate impedance mismatches.
Check out conventional wisdom--when you can
Articles  
8/14/2006   Post a comment
Just because "everyone's saying it", doesn't make it so. So-called "conventional wisdom" is a feature of modern life, but that doesn't mean you shouldn't stop, think, and ask about it. Fortunately, many engineering issues and suppositions can be subjected to rigorous data-collection and analysis.
Tutorial: Basics of choosing and designing the best filter for an effective data-acquisition system
Articles  
8/10/2006   Post a comment
Filters are very necessary and unavoidable "evil" of the signal path; understand your options when making the filter decisions. The validity of the output signal of each stage is determined in terms of amplitude integrity, linearity and frequency content as it relates to the input signal. An industry expert explains how it all fits together.
24-bit stereo DAC provides 87 dB dynamic range
Articles  
8/10/2006   Post a comment
Maxim's MAX5556, a 24-bit, I2S-compatible stereo DAC for digital audio applications, has a dynamic range of 87 dB and a total harmonic distortion of less than -87 dB. This sigma-delta DAC integrates interpolation, deemphasis, analog output filters, click-and-pop-free power-up and power-down circuitry, and line level outputs that swing 3.5 volts p-p with a 10-kilohm load.
Dual ULDOs come in industry's smallest MLF package
Articles  
8/10/2006   Post a comment
Micrel's new family of dual ULDOs, with the MIC5320 and the MIC5321 as the first members, feature a dropout of just 35 mV at 150 mA, a PSRR of at least 65-75 db and very low output noise - all in one of the industry's smallest packages, the (1.6-by-1.6 mm) 6-pin MLF.
Micronas launches dual-tuner DVB-S2 PCI Express reference design for MediaPCs and home theaters
Articles  
8/8/2006   Post a comment
Micronas has announced the launch of MicSidewinder 2D-X, a dual-tuner DVB-S2 PCI Express card reference design for home theater solutions.
An introduction to depletion-mode MOSFETs
Articles  
8/7/2006   1 comment
Learn how depletion-mode MOSFETs work and how you can apply these versatile discrete devices to applications in switching, supplies, and more
16-bit successive-approximation ADC includes LVDS interface
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8/7/2006   Post a comment
Texas Instruments says its ADS84xx is the industry's first 16-bit, successive approximation (SAR) analog-to-digital converter (ADC) family to include a serial low-voltage differential signaling (LVDS) interface.
GaAs MMIC PA, driver produce 2-W at 46-GHz
Articles  
8/7/2006   Post a comment
Developing 26-dB of gain and delivering 2-W of saturated output power, here are a pair of GaAs MMICs that comprise a 3-stage balanced PA and a complementary driver. The two MMICs ensure good impedance matching across the 43.5-GHz to 46-GHz band.
Current-shunt monitor IC simplifies power management
Articles  
8/4/2006   Post a comment
Texas Instruments' INA206 high-side current-shunt monitor, comprising a current-sense amp, two comparators and a voltage reference, can serve in a wide range of power management applications from simple supply current monitor to bidirectional current comparator and as an under/over voltage "window" comparator.
Demo board simplifies ultrasound designs
Articles  
8/3/2006   Post a comment
Texas Instruments' signal-chain demonstration kit for ultrasound equipment, the TUS5000 evaluation module (EVM), is designed to evaluate the performance of the company's VCA2615 variable gain amps and the low-voltage differential signal (LVDS) ADS5272 analog-to-digital converter in eight-channel beamforming applications.




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