Industrial

The M27C4001 is a 4Mbit EPROM with a supply voltage of 5V±10%, a read time delay of 35ns, low power consumption, an active current of 30mA, a standby current of 100µA, a programming voltage of 12.75V±0.25V, and a programming time of 100µs/word.

The M2716 is a 16,384 bit UV erasable and electrically programmable memory EPROM, ideally suited for applications where fast turn around and pattern experimentation are important requirements. The M2716 is housed in a 24 pin Window Ceramic Frit-Seal Dual-in-Line package. The transparent lid allows the user to expose the chip to ultraviolet light to erase the bit pattern. A new pattern can then be written to the device by following the programming procedure.

M24C64 and M24C32 are 64Kbit and 32Kbit serial I²C bus EEPROMs with two-wire I2C serial interface, support 400kHz protocol, single supply voltage 4.5 to 5.5V, write control input, byte and page write (up to 32 bytes), random and sequential read modes, self-timed programming cycle, automatic address incrementing, enhanced ESD/latch-up protection, more than 1 million erase/write cycles, more than 40-year data retention period.

This document describes the features and characteristics of the ESMT Preliminary M12L128168A chip.

The LTC2248 / LTC2247 / LTC2246 are 14-bit 65Msps / 40Msps / 25Msps low power 3V A/D converters designed for digitizing high frequency, wide dynamic range signals. They are perfect for demanding imaging and communications applications.

The LTC1921 monitors two independent -48V supplies, including their fuses, and drives up to three optoisolators to indicate status, in accordance with standard backplane specifications. It features dual supply overvoltage and undervoltage detection circuits, and can ignore fast supply transients to eliminate false detection. The LTC1921 operates from -10V to -80V with a typical power dissipation of less than 10mW. It is available in an 8-pin MSOP package.

The LTC1798 series of micropower bandgap references combine high accuracy, low drift, very low supply current and small package size. The combination of ultralow quiescent current and low dropout voltage of only 200mV (max) makes them ideal for battery-powered equipment. The output voltage is set by an external resistor divider for the adjustable LTC1798. This series of references uses curvature compensation to obtain low temperature coefficient and trimmed thin-film resistors to achieve high output accuracy. These references can source up to 10mA and sink up to 2mA, making them ideal for precision regulator applications. They are stable without an output bypass capacitor, but are also stable with capacitance up to 1µF. This feature is important in critical applications where PC board space is a premium and fast settling is demanded. The LTC1798 series references provided power dissipa- tion advantages over shunt references. In addition to supply current, shunt references must also idle the entire load current to operate. The LTC1798 series is available in the SO-8 package.

The LTC1569-7 is a 10th order lowpass filter featuring linear phase and a root raised cosine amplitude response. The high selectivity of the LTC1569-7 combined with its linear phase in the passband makes it suitable for filtering both in data communications and data acquisition sytems.

LT3485-0/LT3485-1/LT3485-2/LT3485-3 are photoflash capacitor chargers with output voltage monitor and integrated IGBT drive.

The LT138A/LT338A series of adjustable regulators provide 5A output current over an output voltage range of 1.2V to 32V. The internal voltage reference is trimmed to less than 1%, enabling a very tight output voltage. In addition to excel- lent line and load regulation, with full overload protection, the LT138A incorporates new current limiting circuitry allowing large transient load currents to be handled for short periods. Transient load currents of up to 12A can be supplied without limiting, eliminating the need for a large output capacitor. The LT138A is an improved version of the popular LM138 with improved circuit design and advanced process tech- niques to provide superior performance and reliability.

The LT1680 is a high power, current mode switching power supply controller optimized for boost topologies. The IC drives N-channel MOSFET switches for DC/DC converters in applications up to 60V input. A high current gate drive output handles up to 10,000pF gate capacitance, enabling the construction of high power DC/DC converters. Current sense common mode range up to 60V allows current sensing to be referenced to the input supply, eliminating the need for sense blanking circuits. The LT1680 incorporates programmable average current limiting allowing accurate limiting of DC current in the magnetics, independent of ripple current. User adjustable slope compensation provides stable operation at duty cycles up to 90%. The LT1680 operating frequency is programmable and can be synchronized up to 200kHz. Minimum off-time operation provides switch protection. The IC also incorporates a soft start feature that is gated by both shutdown and undervoltage lockout conditions.

The LT ®1494/LT1495/LT1496 are the lowest power (IS ≤ 1.5µA) op amps with precision specifications. The extremely low supply current is combined with excellent amplifier specifications: input offset voltage is 375µV maximum with a typical drift of only 0.4µV/°C, input offset current is 100pA maximum. A minimum open-loop gain (AVOL) of 100V/mV ensures that gain errors are small. The device characteristics change little over the supply range of 2.2V to ±15V. Supply rejection is 90dB and the common mode rejection ratio is 90dB. Operation is specified for 3V, 5V and ±15V supplies. Reverse battery protection (–18V␣min) and inputs that operate above the positive supply make the LT1494/LT1495/LT1496 easy to use in harsh environments. The low bias currents and offset current of the amplifier permit the use of megohm level source resistors without introducing significant errors.

The LPC661 is a low power CMOS operational amplifier from National Semiconductor Corporation. It uses National Semiconductor Corporation's advanced Double-Poly Silicon-Gate CMOS process. This device has a wide supply voltage range (+5V to +15V), output swing up to the supply voltage range and can provide ground level output in the input common-mode range. The performance parameters of this device are better than most bipolar operational amplifiers, with a supply current of only 55μA.

The LP339 is a quad comparator with ultra-low power consumption, single-supply operation, ground-sensing, and is compatible with the CMOS logic family.