National Manuals

The LP3982 is a micropower, ultra low-dropout, low-noise CMOS linear regulator available in various voltage versions. It provides an output current of 300mA. The LP3982 is suitable for battery-powered applications due to its low shutdown current, low quiescent current, and low dropout voltage. It features stable operation with small ceramic capacitive loads, high power supply rejection ratio (PSRR), wide input voltage range, fast turn-on time, low output voltage noise, and over temperature/over current protection.

The ADC121S021 is a single channel, 50 to 200 ksps, 12-bit A/D converter from ADI with high performance, low power consumption and multiple interfaces.

This file introduces the characteristics of LM194 and LM394 Supermatch Pair products. These two products are junction isolated ultra well-matched monolithic NPN transistor pairs with an order of magnitude improvement in matching over conventional tran- sistor pairs

The ADC102S101 is a low-power, two-channel CMOS 10-bit analog-to-digital converter from ADI that supports sample rates up to 1MSPS. 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, respectively, at inputs IN1 and IN2. The output serial data is straight binary, and is compatible with several standards, such as SPI, QSPI, MICROWIRE, and many common DSP serial interfaces. The ADC102S101 operates with a single supply that can range from +2.7V to +5.25V. Normal power consumption using a +3V or +5V supply is 3.9 mW and 11.4 mW, respec- tively. The power-down feature reduces the power consump- tion to just 0.12 µW using a +3.6V supply, or 0.47 µW using a +5.5V supply. The ADC102S101 is packaged in an 8-lead MSOP package. Operation over the industrial temperature range of −40˚C to +85˚C is guaranteed.

LMH6723/LMH6724/LMH6725 is a single/dual/quad 370MHz 1mA current feedback operational amplifier. Its features include 370MHz bandwidth, 1mA current consumption, 110mA linear output current, 0.03%, 0.11˚ differential gain and phase, 0.1dB gain flatness to 100MHz, fast slew rate: 600V/µs, single supply range 4.5 to 12V. It is widely used in portable devices.

LM117/LM317A/LM317 3-terminal adjustable regulator is a 3-terminal adjustable regulator with excellent performance. It is packaged in standard transistor packages and has current limit, thermal overload protection and safe area protection. It is widely used in various electronic circuits.

The LM5070 is an integrated power interface port and pulse width modulation (PWM) controller for Powered Devices (PD) that connect into Power over Ethernet (PoE) systems. It integrates an 80V, 400mA line connection switch and associated control for a fully IEEE 802.3af compliant interface with a full featured current mode pulse width modulator dc-dc converter.

Ideal for space critical applications, the LM4051 precision voltage reference is available in the sub-miniature (3 mm x 1.3 mm) SOT-23 surface-mount package. The LM4051’s advanced design eliminates the need for an external stabilizing capacitor while ensuring stability with any capacitive load, thus making the LM4051 easy to use. Further reducing design effort is the availability of a fixed (1.225V) and adjustable reverse breakdown voltage. The minimum operating current is 60 µA for the LM4051-1.2 and the LM4051-ADJ. Both versions have a maximum operating current of 12 mA. The LM4051 comes in three grades (A, B, and C). The best grade devices (A) have an initial accuracy of 0.1%, while the B-grade have 0.2% and the C-grade 0.5%, all with a tempco of 50 ppm/˚C guaranteed from −40˚C to 125˚C. The LM4051 utilizes fuse and zener-zap trim of reference voltage during wafer sort to ensure that the prime parts have an accuracy of better than ±0.1% (A grade) at 25˚C.

The datasheet introduces the features and characteristics of the DS90LV049H product, including the high temperature operating range, data transmission rate, power supply, input and output pins, etc.

The ADC122S051 is a low-power, two-channel CMOS 12-bit analog-to-digital converter with a high-speed serial interface. It operates within a sample rate range of 200 kSPS to 500 kSPS. The converter utilizes a successive-approximation register architecture with an internal track-and-hold circuit. It can be configured to accept one or two input signals. The output serial data is straight binary and compatible with multiple standards such as SPI™, QSPI™, MICROWIRE, and common DSP serial interfaces. The ADC122S051 can be powered by a single supply ranging from +2.7V to +5.25V. Normal power consumption is 3.0 mW with a +3V supply or 10 mW with a +5V supply. The power-down feature reduces power consumption to just 0.14 µW with a +3V supply or 0.32 µW with a +5V supply. The ADC122S051 is packaged in an 8-lead MSOP package and operates over the industrial temperature range of -40˚C to +85˚C.

The DS90LV028A is a dual CMOS differential line receiver designed for applications requiring ultra low power dissipa- tion, 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 DS90LV028A accepts low voltage (350 mV typical) dif- ferential 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 LM4121 is a precision bandgap voltage reference available in a fixed 1.25V and adjustable version with up to 5 mA current source and sink capability. This series reference operates with input voltages as low as 1.8V and up to 12V consuming 160 µA (Typ.) supply current. In power down mode, device current drops to less than 2 µA. The LM4121 comes in two grades A and Standard. The best grade devices (A) have an initial accuracy of 0.2%, while the standard have an initial accuracy of 0.5%, both with a tempco of 50ppm/˚C guaranteed from −40˚C to +125˚C. The very low operating voltage, low supply current and power-down capability of the LM4121 makes this product an ideal choice for battery powered and portable applications. The device performance is guaranteed over the industrial temperature range (−40˚C to +85˚C), while certain specs are guaranteed over the extended temperature range (−40˚C to +125˚C). Please contact National for full specifications over the extended temperature range. The LM4121 is available in a standard 5-pin SOT-23 package.

LM4549B AC ’97 Rev 2.1 Multi-Channel Audio Codec with Sample Rate Conversion and National 3D Sound

The ADC102S051 is a low-power, two-channel CMOS 10-bit analog-to-digital converter from ADI. It features high sampling rate, variable power management and other features. It is suitable for portable systems, remote data acquisition and other applications.

The LM1875 is a 20W audio power amplifier produced by National Semiconductor. It is suitable for consumer electronics products such as high-fidelity audio and power amplifiers. The product adopts a monolithic design, with large output power, low distortion, wide bandwidth, large output voltage swing, high current capacity, and wide supply range.