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Voltage Feedback Amplifier Boasts Low Quiescent Current

March 26, 2008 10:13 am | Product Releases | Comments

 portable instrumentation, active filters and analog to digital converter (ADC) buffers

LISTED UNDER: ICs

Zener Diode Assemblies Shield Automotive Peripherals

March 26, 2008 6:06 am | Product Releases | Comments

Created to help protect consumer infortainment devices that require in-vehicle charging, a pair of 2.3A polymer-enhanced Zener diode assemblies from Tyco Electronics  include a resistively non-linear, polymer positive temperature coefficient (PPTC) layer that responds to either diode heating or overcurrent events. Features include a max input of 16VDC, a resistance of 0.04O, and a power dissipation of 0.7W.

LISTED UNDER: ICs

RF Dongle Reference Design Uses Single RFIC

March 25, 2008 5:25 am | Product Releases | Comments

Providing an air data rate of up to 2 Mbps, a single-chip USB dongle reference design based on the nRF24LU1 RFIC with integrated RF synthesizer and PLL is intended for use in applications such as PC peripherals, remote devices, and sports accessories. The design integrates the RF chip, PCB antenna, 16 MHz crystal, and required passives in a 12 mm × 32 mm form factor that is FCC, ETSI, and USB compliant.

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40V Synchronous Rectifier Enables High Efficiency In Switching Designs

March 24, 2008 10:24 am | Fairchild Semiconductor | Product Releases | Comments

Fairchild Semiconductor's 40V breakdown DC/DC synchronous rectifier for power supplies such as DC-DC brick modules and servers features desirable RDS(ON) and total gate charge (QG), and provides 20 percent lower Figure of Merit (FOM) compared to other 40V MOSFET solutions, according to the company. It comes in an industry standard and green

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Analog Front End Enhances Ultrasound System Performance

March 24, 2008 9:47 am | Product Releases | Comments

Presenting a complete analog signal chain solution designed for portable ultrasound systems, Texas Instruments' AFE5805 integrated analog front end (AFE) delivers as much as a 50 percent space savings with up to 20 percent lower power consumption and 40 percent less noise than existing integrated solutions. Presented as the smallest device of its type and the first in the AFE58xx family of devices, the AFE reduces component count to decrease power consumption by up to 20 percent and offers 40 percent less noise than similar devices

LISTED UNDER: ICs

Battery Authentication ICs Provide Device Security

March 21, 2008 5:53 am | Product Releases | Comments

Intersil introduced flexible battery authentication ICs for cell phones. The ISL9206 and ISL9206A are incorporate the company's FlexiHash+ engine. It provides high levels of security using a basic challenge/response scheme based on 32-bit challenge code and 8-bit response code. The engine employs

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Op Amp Combines High Voltage and High Accuracy

March 19, 2008 12:31 pm | Product Releases | Comments

Texas Instruments introduced a precision power operational amplifier (op amp) which operates on supplies up to 100V and provides a high output current of ±50mA with a 150 mA short circuit limit. The OPA454 is unity-gain stable and can track fast moving signals since it has a slew rate of 10V/µs and gain-bandwidth product of 2.5 MHz. It features a single or dual supply of ±4V (8V) to±50V (100V).

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Linear Regulator Cuts MSP430 System Standby Power In Half

March 19, 2008 11:17 am | Product Releases | Comments

Consuming what is presented as the lowest quiescent current in the industry at 500nA, the Texas Instruments' TPS780xx LDO also has a voltage select pin for designers to dynamically shift to a lower voltage level in a MSP430 microcontroller-based battery-powered design when the microprocessor is in sleep mode to cut power by as much as half. Stable with any output capacitor greater than 0.1µF

LISTED UNDER: ICs
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Miniature Signal Conditioning IC Enhances Optical Sensors' Proximity and Object Detection

March 19, 2008 7:55 am | Product Releases | Comments

Avago Technologies today announced a miniature single-chip signal conditioning IC that is said to enhance the performance and robustness of optical sensors used for proximity or object detection in consumer and industrial applications. When used with optical proximity sensors, the APDS-9700 signal conditioning IC provides

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IGBTs Exhibit High Power Dissipation in Solar Inverter Apps

March 18, 2008 11:09 am | International Rectifier | Product Releases | Comments

Using the latest-generation field-stop trench technology to reduce conduction and switching losses, the IRGB40xxDPbF family of 600V IGBTs from International Rectifier reduces power dissipation by up to 30percent in UPS and solar inverter applications of up to 3 kW. The devices are optimized for switching at 20 kHz with a collector-to-emitter saturation voltage from 1.95V to 2.20V and currents from 4A to 48A with a internal soft-recovery diodes

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Precision Amplifier Offers 20 fA Guaranteed Input Bias Current

March 18, 2008 10:58 am | Product Releases | Comments

National Semiconductor introduced the LMP7721 precision amplifier 20 fA guaranteed input bias current at room temperature and over the extended temperature range of -40°C to 125°C. According to the company, the device yields maximum system sensitivity and accuracy from photodiode and high-impedance sensors and is suited for improving sensitivity and accuracy in battery operated portable applications

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Charge Pump Drives up to Six LEDs

March 16, 2008 1:49 pm | Product Releases | Comments

Catalyst Semiconductor, Inc. introduced the CAT3637 fractional charge pump LED drivers which address the requirements for high-efficiency and easy LED programming in portable devices. It is optimized for applications with one bank of five or six identical LED channels, a typical configuration for larger LED screen portable products. It incorporates a simplified version of the company’s 1-wire EZDim interface, which supports 16 output power levels, from from zero to 30 mA full brightness

LISTED UNDER: ICs

Intermediate-bus Power Controllers are Highly Integrated

March 14, 2008 12:40 pm | Product Releases | Comments

Presented as the first such single-chip devices on the market to integrate high-voltage (75-V) half-bridge MOSFET drivers with a 1.6-A peak current driving capability, the Vishay Siliconix SiP11205 and SiP11206 controllers are designed to work on the primary side of an isolated half-bridge intermediate-bus converter in telecom and network equipment and in 1/16-brick or 1/8-brick power modules. Providing current monitoring and control features, the self-driven synchronous-rectification controllers step down voltages with greater than 95 % efficiency with an input voltage range from 36V to 75V

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Reference Designs Create Low-Power Wireless Modules

March 14, 2008 6:17 am | Product Releases | Comments

Providing engineers the ability to create Ultra-Low Power (ULP) ISM-band button-cell powered wireless links, a family of reference designs using Nordic Semiconductor RF tranceiver chips require only a digital In/Out, power (+V) and ground (GND) connection for implementation. The seven module designs are based on the 2.4GHz nRF24L01 (RF Digital Modules RFD21010, RFD21676, RFD21677), nRF2401 (RFD21006), and nRF24E1 (RFD21018) and the 433/868/915MHz nRF905 (RFD21002), and nRF9E5 (RFD21014).

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PWM Buck Regulators Feature Unique Auto-Tracking and Sequencing Capabilities

March 10, 2008 7:42 am | On Semiconductor | Product Releases | Comments

ON Semiconductor introduced the NCP312x family of dual output pulse width modulation (PWM) buck regulators that offer auto-tracking and sequencing capabilities. Featuring integrated MOSFETs that provide 2A (NCP3120, NCP3122) or 3A (NCP3121, NCP3123) output current with switching frequency up to 2.2 MHz, the devices are appropriate for a

LISTED UNDER: ICs

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