National Semiconductor manuals, page 11
National LMC6008 handbook
The LMC6008 octal buffer is designed specifically to buffer the multi-level voltages going to the inputs of the integrated circuits. The LMC6008 AC characteristics, including settling time, are specified for a capacitive load of 0.1 mF. The LMC6008 contains 4 high-speed buffers and 4 low-power buffers. The high-speed buffers can provide an output current of at least 250 mA (minimum), and the low-power buffers can provide at least 150 mA (minimum). By including the 2 types of buffers, the LMC6008 is able to provide this function while consuming a supply current of only 6.5 mA (maximum). The buffers are a rail-to-rail design, which typically swing to within 30 mV of either supply. The LMC6008 also contains a standby function which puts the buffer into a high-impedance mode. The supply current in the standby mode is a low 500 mA max. Also, a thermal limit circuit is included to protect the device from overload conditions.
National Semiconductor LMC6001 Ultra Ultra-Low Input Current Amplifier handbook
LMC6001 is a ultra-low input current amplifier from National, which has an input current of 25fA and an input current noise of 0.13fA/√Hz, it can provide almost noiseless amplification of high resistance signal sources.
National Semiconductor LMC568 Low Power Phase-Locked Loop handbook
LMC568 is a low power Phase-Locked Loop chip produced by National Semiconductor Corporation. It supports ±15% FM and FSK signal demodulation, with a maximum input frequency of 500kHz. Typical application scenarios include FM SCA and TV second audio program decoders, FSK data demodulators and voice pagers.
National Semiconductor LMC567 Low Power Tone Decoder handbook
The LMC567 is a low power general purpose LMCMOS™ tone decoder which is functionally similar to the industry standard LM567. It consists of a twice frequency voltage-controlled oscillator (VCO) and quadrature dividers which establish the reference signals for phase and amplitude detectors. The phase detector and VCO form a phase-locked loop (PLL) which locks to an input signal frequency which is within the control range of the VCO. When the PLL is locked and the input signal amplitude exceeds an internally pre-set threshold, a switch to ground is activated on the output pin. External components set up the oscillator to run at twice the input frequency and determine the phase and amplitude filter time constants.
National Semiconductor LMC555 CMOS Timer handbook(1)
The LMC555 is a CMOS version of the industry standard 555 series general purpose timers.
National Semiconductor LMC555 CMOS Timer handbook
This document introduces the characteristics and features of the LMC555 CMOS timer
National Semiconductor LMC272 CMOS Dual Low Cost Rail to Rail Output Operational Amplifier handbook
LMC272 is a low-cost CMOS dual operational amplifier with rail-to-rail output swing and an input common voltage range that extends below the negative supply. Other performance characteristics include low voltage operation, low bias current, excellent channel-to-channel isolation, good bandwidth performance and a competitive price. These devices are available in MSOP package which is about half the size of a SO-8 device. This enables the designer to fit the device in extremely small applications. The LMC272C is a direct replacement for TLC272C with performance which meets or exceeds the TLC272C's guaranteed limits in the commercial temperature range when operating from a supply of 2.7V to 15V (see Electrical Characteristics table for details). These features make this cost effective device ideal for new designs as well as for upgrading existing designs. Applications include hand-held analytic instruments, transducer amplifiers, sample and hold circuits, etc.
National Semiconductor LMC2626 CMOS LDOR/Buffer Chip for Row Inversion Flat Panel Display Systems handbook
national semiconductor LMC2001 High Precision 6MHz Rail-To-Rail Output Operational Amplifier handbook
LMC2001 is a high precision, 6MHz rail-to-rail output operational amplifier, with excellent CMRR and PSRR, low 1/f noise, low supply current, wide gain-bandwidth product.
National semiconductor LMC1992 Digitally-Controlled Stereo Tone Volume Circuit with Four-Channel Input-Selector Manual
The LMC1992 is a monolithic integrated circuit that provides four stereo inputs, bass and treble tone controls, and volume, balance, and front-rear fader controls. These functions are digitally controlled through a three-wire communication interface. All of the LMC1992's functions are achieved with only three external capacitors per channel. It is designed for line level input signals (300 mV to 2V) and has a maximum gain of 0 dB. Low noise and distortion result from using analog switches and thin-film silicon-chromium resistor networks in the signal path. Volume and fader are at minimum and tone controls are flat when supply voltage is first applied. Additional tone control can be achieved using the LMC835 stereo 7-band graphic equalizer connected to the LMC1992's select-out-select-in external processor loop. Features include low noise and distortion, four stereo inputs, 40 volume levels including mute, 20 fader levels, all attenuators have a 2 dB of attenuation per step, front-back fade control, external processor loop, only three external components per channel, serial programming.
National semiconductor LMC1983 Digitally-Controlled Stereo Tone Volume Circuit with Three Selectable Stereo Inputs Manual
The LMC1983 is a monolithic integrated circuit that provides volume, balance, tone (bass and treble), loudness controls and selection between three pairs of stereo inputs. The LMC1983 is designed for line level input signals (300 mV–2V) and has a maximum gain of −0.5 dB. Low noise and distortion result from using analog switches and poly-silicon resistor networks in the signal path. Additional tone control can be achieved using the LMC835 stereo 7-band graphic equalizer connected to the LMC1983’s SELECT OUT/SELECT IN external processor loop.
National semiconductor LMC1982 Digitally-Controlled Stereo Tone Volume Circuit with Two Selectable Stereo Inputs Manual
LMC1982 is a monolithic integrated circuit that provides volume, balance, tone (bass and treble), enhanced stereo, and loudness controls and selection between two pairs of stereo inputs.
National semiconductor LP2950/LP2951 Series of Adjustable Micropower Voltage Regulators Manual
The LP2950 and LP2951 are micropower voltage regulators with very low quiescent current and very low dropout voltage, making them ideal for battery-powered systems. The LP2950/LP2951 has been carefully designed to have a tight initial tolerance, excellent load and line regulation, and a very low output voltage temperature coefficient, making it suitable as a low-power voltage reference.
National Semiconductor LMH6723/LMH6724/LMH6725 Single/Dual/Quad 370 MHz 1 mA Current Feedback Op Amp handbook
The LMH6723/LMH6724/LMH6725 is a single/dual/quad 370 MHz 1 mA current feedback op amp. It provides a 260 MHz small signal bandwidth at a gain of +2 V/V and a 600 V/µs slew rate while consuming only 1 mA from ±5V supplies. The LMH6723/LMH6724/LMH6725 supports video applications with its 0.03% and 0.11˚ differential gain and phase errors for NTSC and PAL video signals while driving a back terminated 75Ω load. The LMH6723/LMH6724/LMH6725 also offers a flat gain response of 0.1 dB to 100 MHz. Additionally, the LMH6723/LMH6724/LMH6725 can deliver 110 mA of linear output current. This level of performance, as well as a wide supply range of 4.5 to 12V, makes the LMH6723/LMH6724/LMH6725 an ideal op amp for a variety of portable applications. The LMH6723/LMH6724/LMH6725's small packages (SOIC & SOT23), low power requirement and high performance, allow it to serve a wide variety of portable applications.
National Semiconductor LMH6723/LMH6724/LMH6725 Single/Dual/Quad 370 MHz 1 mA Current Feedback Operational Amplifier handbook
The LMH6723/LMH6724/LMH6725 is a single/dual/quad 370 MHz 1 mA current feedback operational amplifier, providing a small signal bandwidth of 260 MHz, a slew rate of 600 V/µs, and consuming only 1 mA from ±5V supplies. It supports video applications with a differential gain and phase of 0.03% and 0.11˚ for NTSC and PAL video signals. The LMH6723/LMH6724/LMH6725 also offers a flat gain response of 0.1 dB to 100 MHz and can deliver 110 mA of linear output current. It is suitable for a variety of portable applications.