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Tech Videos
9th December 2011
LM10504 Smallest Integrated PMIC for SSDs

Bob demonstrates the LM10504, the industry's smallest (2.8 x 2.8 mm) fully integrated PMIC/PMU for solid state drives (SSDs).

Tech Videos
17th October 2011
LM3466 Multi-String LED Current Equalization Demo

Amanda demonstrates multi-string LED current equalization using the LM3466 Smart LED Driver for uniform lighting even under LED fault conditions. The LM3466 enables you to build efficient, reliable, high quality LED lighting with just a power supply.

Optoelectronics
14th September 2011
LM3553 1.2A Dual Flash LED Driver System with I2C Compatible Interface

To operate the LM3553 1.2A Dual Flash LED Driver System with I2C Compatible Interface, connect a supply voltage (2.7V-5.5V) between board connectors VIN and GND and attach an I2C interface using one of the methods described in the EXTERNAL CONTROL INTERFACE SECTION of this document.

Optoelectronics
12th September 2011
Drives 1-2 Luxeon LEDs at different currents from separate power inputs

This circuit is designed to replace a dual-filament incandescent bulb in a combined brake/tail light for automotive use. When power is applied to the 'Tail' input the current in the LED is regulated to 300mA. When power is applied to the 'Brake' input or both inputs simultaneously, the current in the LED increases to 900mA. The 'Brake' and 'Tail' input voltage can vary between 8V and 40V This makes the circuit suitable for standard passenger cars...

Optoelectronics
5th September 2011
Drives 1 high brightness LED at a constant current of 1000 mA from 5V to 30V input.

The LM3485 design is a buck regulator derived controlled current source designed to drive high power, high brightness LEDs (HBLEDs) at a constant current of 1.0A. The design can accept an input voltage ranging from 5V to 30V and can control the output current delivered to series and/or parallel arrays of HBLEDs as long as the forward voltage of all the LEDs in series is less than 0.9 x Vin. The accuracy of the output current is +-10%.

French
30th August 2011
Les DVGA National Semiconductor rendent plus performantes les architectures radio des stations de base

National Semiconductor Corp a présenté aujourd'hui deux DVGA (Digital Variable Gain Amplifier, ou amplificateur numérique à gain variable) à deux et quatre canaux, permettant d'obtenir des systèmes radio haut-débit très performants. Le DVGA quadruple LMH6522 et le DVGA double LMH6521 fournissent une linéarité exceptionnelle sur une large plage de fréquence, ce qui en fait des candidats idéaux pour les systèmes multicanaux sans-fil à...

French
30th August 2011
Le CNA 16 bits à fil unique pour boucles de courant 4 à 20 mA de National Semiconductor simplifie la conception de transpondeurs intelligents

National Semiconductor Corp. (NYSE : NSM) a présenté aujourd'hui un convertisseur numérique-analogique 16 bits (CNA) doté d'une interface à fil unique et à boucle de courant 4 à 20 mA, simplifiant la conception des transmetteurs intelligents utilisés dans les systèmes industriels à capteur 2 fils. Le très intégré DAC161P997 réduit le nombre et le coût des composants nécessaires dans les systèmes d'automation d'usine ou de bâtime...

Pending
18th August 2011
National Semiconductor’s Single-Wire 16-bit DAC for 4-to-20 mA Loops Simplifies Smart Transmitter Design

National Semiconductor has introduced a 16-bit digital-to-analog converter (DAC) featuring a single-wire interface and 4-to-20 mA current loop drive that simplifies the design of smart transmitters used in industrial two-wire sensor systems. The highly integrated DAC161P997 reduces component count and cost in factory and building automation control systems by enabling the use of a single isolation component to cross the isolation boundary. For se...

Optoelectronics
17th August 2011
LM2698 Design Document

This circuit consists of a power section optimized to deliver a total of 160mA to the LED array. The first string is controlled by the feedback loop to 20mA. The remaining strings are controlled by the current mirrors created by the PNP transistors at the top of each string.

Test & Measurement
12th August 2011
National Semiconductor Agreement with Audi AG Launches with the Next Innovative 2012 Car Models

The 2012 Audi new car models will be the first following National Semiconductor Corp.’s arrangement with Audi AG to provide analog integrated circuits (ICs) and subsystems for Modular Infotainment Device technology for Audi’s next-generation vehicles. National’s technology enables vivid graphics and content-protected high-definition (HD) video to be distributed throughout the vehicle, creating a movie theater-like experience for passengers.

Optoelectronics
12th August 2011
RD-173 LM3429: 4 LEDs @ 700mA, 9 ~ 36V from National Semiconductor

The demonstration board includes a LM3429 device that converts 9VDC to 36VDC input to a 700mA constant current output designed to operate a load of three to four series LEDs.

Wireless
12th August 2011
DVGAs from National Semiconductor Enable Higher-Performance Basestation Radio Architectures

Dual/Quad DVGAs Combine High Channel Count and Excellent High Frequency Linearity

Pending
10th August 2011
DVGAs from National Semiconductor Enable Higher-Performance Basestation Radio Architectures

National Semiconductor has introduced a pair of quad- and dual-channel, digital variable gain amplifiers (DVGA) that enable higher-performance wideband radio systems. The LMH6522 quad and LMH6521 dual DVGAs provide superior linearity performance over a wide frequency range, making them an ideal solution for the most challenging multi-channel wideband wireless systems. Target applications include intermediate frequency (IF) sampling receivers, I/Q...

French
10th August 2011
National Semiconductor étend sa famille de circuits Sensor AFE (Analog Front-End) ou frontaux analogiques

- National Semiconductor Corp. (NYSE : NSM) a présenté aujourd'hui sept nouveaux circuits Sensor AFE multicanaux, qui offrent aux concepteurs de système un plus grand choix, allant des hautes performances au faible coût, avec différentes configurations de canaux, différentes sources de courant, et différentes résolutions. Les circuits Sensor AFE LMP900xx National constituent une approche facile pour élaborer une solution signal pour inte...

Tech Videos
26th July 2011
ADC12Dxx00RF Direct RF-Sampling ADC Overview - Revolutionize Radio Architectures

DR Scott introduces National's 12-bit direct RF-sampling ADCs can directly sample input frequencies up to and beyond 2.7 GHz at up to 3.6 GSPS. A single direct RF-sampling ADC can replace an entire IF-sampling or ZIF-sampling radio signal path subsystem of mixers, LO synthesizers, amplifiers, filters, and ADCs, drastically reducing bill of materials (BOM) cost, design time, and board size, weight, and power. More info at national.com/rfadc

Analysis
25th July 2011
National Semiconductor Stockholders Approve Acquisition by Texas Instruments

National Semiconductor Corporation announced that at a special meeting of National’s stockholders held today, the stockholders approved the adoption of the merger agreement by and among National, Texas Instruments Incorporated and Orion Merger Corp., a subsidiary of TI (Merger Sub).

French
18th July 2011
Les tout nouveaux CAN pour échantillonnage RF direct de National Semiconductor révolutionnent les architectures radio

National Semiconductor Corp a présenté aujourd'hui une famille des convertisseurs analogique-numérique (CAN) capables pour la première foi d'échantillonner directement des signaux radio au-delà de 2.7 GHz, avec une distorsion d'intermodulation de troisième ordre (IMD3) atteignant 71 dBc, et une fréquence d'échantillonnage jusqu'à 3.6 Géch/s (Giga-échantillons par seconde). Vous pouvez voir une vidéo de démonstration sur www.national...

Wireless
13th July 2011
National Semiconductor Introduces Industry’s First High-voltage PMBus System Power Management and Protection ICs

High-voltage Hot Swap Controllers with Integrated System Power Measurement Improve Reliability, Enable Lower Power Consumption in Telecom Infrastructure Systems

Frequency
13th July 2011
Breakthrough Direct RF-Sampling ADCs from National Semiconductor Revolutionize Radio Architectures

ADC’s Superior Performance at Input Frequencies up to 2.7 GHz Dramatically Reduces Board Size and Component Count for 3G/4G Basestation, Military and SDR Applications

Analysis
29th June 2011
National Semiconductor Stockholders Approve Acquisition by Texas Instruments

National Semiconductor Corporation announced that at a special meeting of National’s stockholders held today, the stockholders approved the adoption of the merger agreement by and among National, Texas Instruments Incorporated and Orion Merger Corp., a subsidiary of TI (Merger Sub). Pursuant to the merger agreement, Merger Sub will be merged with and into National, with National as the surviving corporation and a subsidiary of TI, in exchange f...

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