National Manuals

LM117/LM317A/LM317 3-terminal adjustable regulator

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

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...

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

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.

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.

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.

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.

ADC0801/ADC0802/ADC0803/ADC0804/ADC0805 8-Bit µP Compatible A/D Converters

ADC08031/ADC08032/ADC08034/ADC08038 8-Bit High-Speed Serial I/O A/D Converters with Multiplexer Options, Voltage Reference, and Track/Hold Function

The ADC08061/ADC08062 is a 500ns A/D converter with S/H function and input multiplexer.

The ADC08060 is a low-power, 8-bit, monolithic analog-to-digital converter with an on-chip track-and-hold circuit. This product is optimized for low cost, low power, small size and ease of use, and operates at conversion rates of 20 MSPS to 70 MSPS with outstanding dynamic performance over its full operating range while consuming just 1.3 mW per MHz of clock frequency. That’s just 78 mW of power at 60 MSPS. Raising the PD pin puts the ADC08060 into a Power Down mode where it consumes just 1 mW. The unique architecture achieves 7.5 Effective Bits with 25 MHz input frequency. The excellent DC and AC charac- teristics of this device, together with its low power consump- tion and single +3V supply operation, make it ideally suited for many imaging and communications applications, includ- ing use in portable equipment. Furthermore, the ADC08060 is resistant to latch-up and the outputs are short-circuit proof. The top and bottom of the ADC08060’s reference ladder are available for connections, enabling a wide range of input possibilities. The digital outputs are TTL/CMOS compatible with a separate output power supply pin to support interfac- ing with 3V or 2.5V logic. The digital inputs (CLK and PD) are TTL/CMOS compatible. The ADC08060 is offered in a 24-lead plastic package (TSSOP) and is specified over the industrial temperature range of −40˚C to +85˚C.