National Manuals

The ADC0800 is an 8-bit monolithic A/D converter using P-channel ion-implanted MOS technology. Its features include: low cost, 5V-10V input ranges, no missing codes, ratiometric conversion, fast TCe50ms, contains output latches, TTL compatible, supply voltages 5VDC and -12VDC, resolution 8 bits, linearity 1LSB, conversion speed 40 clock periods, clock range 50 to 800kHz.

The LP324 series consists of four independent, high gain internally compensated micropower operational amplifiers. These amplifiers are specially suited for operation in battery systems while maintaining good input specifications, and extremely low supply current drain. In addition, the LP324 has an input common mode range, and output source range which includes ground, making it ideal in single supply applications. These amplifiers are ideal in applications which include portable instrumentation, battery backup equipment, and other circuits which require good DC performance and low supply current.

This document is about the LP124 series of products, which are four independent high gain internally compensated micropower operational amplifiers produced by National Semiconductor Corporation.

LP324/LP2902 is a four-channel micropower operational amplifier produced by National Semiconductor Corporation. It has extremely low supply current, output power range and input common mode range, and is suitable for applications such as portable instrumentation, battery backup equipment, and other circuits that require good DC performance and low supply current.

The LM317L is an adjustable 3-terminal positive voltage regulator capable of supplying 100mA over a 1.2V to 37V output range. It is exceptionally easy to use and requires only two external resistors to set the output voltage

The LM117HV/LM317HV are adjustable 3-terminal positive voltage regulators capable of supplying in excess of 1.5A over a 1.2V to 57V output range. They are exceptionally easy to use and require only two external resistors to set the output voltage. Further, both line and load regulation are better than standard fixed regulators. Also, the LM117HV is packaged in standard transistor packages which are easily mounted and handled. In addition to higher performance than fixed regulators, the LM117HV series offers full overload protection available only in IC’s. Included on the chip are current limit, thermal overload protection and safe area protection. All overload protection circuitry remains fully functional even if the adjustment terminal is disconnected. Normally, no capacitors are needed unless the device is situated more than 6 inches from the input filter capacitors in which case an input bypass is needed. An optional output capacitor can be added to improve transient response. The adjustment terminal can be bypassed to achieve very high ripple rejections ratios which are difficult to achieve with standard 3-terminal regulators. Besides replacing fixed regulators, the LM117HV is useful in a wide variety of other applications. Since the regulator is “floating” and sees only the input-to-output differential voltage, supplies of several hundred volts can be regulated as long as the maximum input to o...

LM117/LM317A/LM317 3-Terminal Adjustable Regulator General Description

LM117/LM317A/LM317 3-terminal adjustable regulator

The LM3146 is a high voltage field effect transistor produced by National Semiconductor Corporation. It is packaged in a dual in-line package and features high voltage matched pairs of transistors, low noise figure and wide operating current range. It is widely used in various signal processing systems.

The LM113 and LM313 are temperature compensated, low voltage reference diodes. They feature extremely tight regulation over a wide range of operating currents in addition to an unusually low breakdown voltage and good temperature stability. The diodes are synthesized using transistors and resistors in a monolithic integrated circuit. As such, they have the same low noise and long term stability as modern IC op amps. Further, output voltage of the reference depends only on highly predictable properties of components in the IC, so they can be manufactured and supplied to tight tolerances.

The LM111, LM211, and LM311 are voltage comparators that have input currents nearly a thousand times lower than devices like the LM106 or LM710. They are also designed to operate over a wider range of supply voltages: from standard ±15V op amp supplies down to the single 5V supply used for IC logic. Their output is compatible with RTL, DTL, and TTL as well as MOS circuits. Further, they can drive lamps or relays, switching voltages up to 50V at currents as high as 50 mA. Both the inputs and the outputs of the LM111, LM211, or the LM311 can be isolated from system ground, and the output can drive loads referred to ground, the positive supply, or the negative supply. Offset balancing and strobe capability are provided, and outputs can be wire OR’ed. Although slower than the LM106 and LM710 (200 ns response time vs 40 ns), the devices are also much less prone to spurious oscillations. The LM111 has the same pin configuration as the LM106 and LM710. The LM211 is identical to the LM111, except that its performance is specified over a −25˚C to +85˚C temperature range instead of −55˚C to +125˚C. The LM311 has a temperature range of 0˚C to +70˚C.

The LM108 series is a precision operational amplifier with specifications ten times better than FET amplifiers. It operates over a temperature range of -55°C to 125°C. The low current error of the LM108 series enables designs that are not practical with conventional amplifiers.