National Manuals

The LM2679 is a high efficiency 5A step-down switching regulator with adjustable current limit. It features a low ON-resistance DMOS power switch and achieves up to 92% conversion efficiency. The device uses a fixed frequency oscillator (260KHz) which allows for smaller physical components.

The LMV1012 is an audio amplifier series for small form factor electret microphones. This 2-wire portfolio is designed to replace the JFET amplifier currently being used. The LMV1012 series is ideally suited for applications requiring high signal integrity in the presence of ambient or RF noise, such as in cellular communications. The LMV1012 audio amplifiers are guaranteed to operate over a 2.2V to 5.0V supply voltage range with fixed gains of 7.8 dB, 15.6 dB, 20.9 dB, and 23.8 dB. The devices offer excellent THD, gain accuracy and temperature stability as compared to a JFET microphone. The LMV1012 series enables a two-pin electret microphone solution, which provides direct pin-to-pin compatibility with the existing JFET market. The devices are offered in extremely thin space saving 4-bump micro SMD packages. The LMV1012XP is designed for 1.0 mm canisters and thicker ECM canisters. These extremely miniature packages are designed for electret con- denser microphones (ECM) form factor.

The LM5000 is a monolithic integrated circuit specifically designed and optimized for flyback, boost or forward power converter applications. The internal power switch is rated for a maximum of 80V, with a current limit set to 2A. Protecting the power switch are current limit and thermal shutdown circuits. The current mode control scheme provides excellent rejection of line transients and cycle-by-cycle current limiting. An external compensation pin and the built-in slope compensation allow the user to optimize the frequency compensation. Other distinctive features include softstart to reduce stresses during start-up and an external shutdown pin for remote ON/OFF control. There are two operating frequency ranges available. The LM5000-3 is pin selectable for either 300kHz (FS Grounded) or 700kHz (FS Open). The LM5000-6 is pin selectable for either 600kHz (FS Grounded) or 1.3MHz (FS Open). The device is available in a low profile 16-lead TSSOP package or a thermally enhanced 16-lead LLP package.

The ADC14C105 is a 14-bit, 95/105 MSPS A/D converter

LM5100A/LM5101A 3.0 Amp High Voltage High Side and Low Side Driver. This product is produced by Texas Instruments and is suitable for a variety of power conversion applications, such as current fed push-pull converters, half-bridge and full-bridge power converters.

The LP3878-ADJ is a 800mA adjustable output voltage regulator designed by TI. It features low quiescent current, low noise and low temperature drift. It is suitable for applications that require output voltage as low as 1.0V.

The ADC122S021 is a low-power, two-channel CMOS 12-bit analog-to-digital converter with a high-speed serial interface. It is unlike the conventional practice of specifying performance at a single sample rate only, the ADC122S021 is fully specified over a sample rate range of 50 kSPS to 200 kSPS. The converter is based on a successive-approximation register architecture with an internal track-and-hold circuit. It can be configured to accept one or two input signals at inputs IN1 and IN2. The output serial data is straight binary, and is compatible with several standards, such as SPI™, QSPI™, MICROW- IRE, and many common DSP serial interfaces. The ADC122S021 operates with a single supply that can range from +2.7V to +5.25V. Normal power consumption using a +3V or +5V supply is 2.2 mW and 7.9 mW, respectively. The power-down feature reduces the power consumption to just 0.14 µW using a +3V supply, or 0.32 µW using a +5V supply. The ADC122S021 is packaged in an 8-lead MSOP package. Operation over the industrial temperature range of −40˚C to +85˚C is guaranteed.

The DS90LV018A is a single CMOS differential line receiver from Linear Technology, designed for applications requiring ultra low power dissipation, low noise and high data rates. The device is designed to support data rates in excess of 400 Mbps (200 MHz) utilizing Low Voltage Differential Signaling (LVDS) technology. The DS90LV018A accepts low voltage (350 mV typical) differential input signals and translates them to 3V CMOS output levels. The receiver also supports open, shorted and terminated (100Ω) input fail-safe. The receiver output will be HIGH for all fail-safe conditions. The DS90LV018A has a flow-through design for easy PCB layout. The DS90LV018A and companion LVDS line driver provide a new alternative to high power PECL/ECL devices for high speed point-to-point interface applications.

The LM1815 is an adaptive sense amplifier and default gating circuit for motor control applications. It provides a one-shot pulse output whose leading edge coincides with the negative-going zero crossing of a ground referenced input signal such as from a variable reluctance magnetic pick-up coil. The adaptive sense amplifier operates with a positive-going threshold derived by peak detecting the incoming signal and dividing it down. The minimum input signal is 150mVP-P.

the lp3981 is an ultra low dropout cmos voltage regulator from nsc company. it features high performance, low power consumption and low noise. the product is ideal for mobile phone and similar battery powered wireless applications. it provides up to 300ma of current, input voltage range from 2.5v to 6v, and consumes less than 1µa in disable mode. the lp3981 is available in msop-8 package, and can provide 2.5v, 2.7v, 2.8v, 2.83v, 3.0v, 3.03v and 3.3v standard output voltages. other output voltages can be customized according to customer needs.

ADC082S021 2 Channel, 200 KSPS, 8-Bit A/D Converter

The CLC412 is a high-speed dual wideband video op amp that combines a high-speed complementary bipolar process with National's current-feedback topology. It provides a 250MHz small-signal bandwidth at a gain of +2V/V and a 1300V/µs slew rate while consuming only 50mW per amplifier from ±5V supplies. The CLC412 offers exceptional video performance with its 0.02% and 0.02° differential gain and phase errors for NTSC and PAL video signals while driving one back terminated 75Ω load. It also has a flat gain response of 0.1dB to 30MHz and very low channel-to-channel crosstalk of -76dB at 10MHz. Additionally, each amplifier can deliver a 70mA continuous output current. This level of performance makes the CLC412 an ideal dual op amp for high-density broadcast-quality video systems. The CLC412's two very well-matched amplifiers support a number of applications such as differential line drivers and receivers. In addition, the CLC412 is well suited for Sallen Key active filters in applications such as anti-aliasing filters for high-speed A/D converters. Its small 8-pin SOIC package, low power requirement, low noise and distortion allow the CLC412 to serve portable RF applications such as IQ-channels.

This document introduces the general description, features, functions, and connection diagram of the DS1603 TRI-STATE® Dual Receiver. This product is a dual differential TRI-STATE line receiver with high input impedance and low input current, which is ideal for party line systems and general purpose applications such as transducer preamplifiers, level translators, and comparators.