Linear Technology Corp.
Milpitas, CA 95035
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Amplifier drives high sampling rate A/D converters.
Model LT5514 850 MHz, programmable-gain, broadband amplifier exhibits output 3rd order intercept of 49 dBm at 70 MHz. It has 2nd and 3rd order distortion products lower than -87 dBc, while delivering 2 V peak-to-peak output into 200 ohm load. Variable gain is adjusted by on-chip, digitally controlled attenuator in combination with fixed gain amplifier. Unit is suited for 12- and 14-bit, 65 MS/sec...
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Triple Switching Regulator saves space.
Triple-output, monolithic switching regulator, LT1941, is housed in TSSOP-28E package with exposed copper bottom. Two regulators are step-down converters with 3 and 2 A switches, while third regulator can be configured as boost, inverter, or SEPIC converter and has 1.5 A switch. All 3 converters are synchronized to 1.1 MHz oscillator. Product offers antiphase switching to reduce ripple and...
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DC/DC Converter delivers up to 1.2 A at 95% efficiency.
Synchronous, fixed-frequency, buck-boost Model LTC3443 optimizes battery run-time for single-cell Li-Ion, multi-cell alkaline, or NiMH battery-powered applications. It operates from input voltage of 2.4-5.5V and can provide up to 1.2 A of output current at fixed output voltage between 2.4-5.25V. Operating frequency is set internally to 600 kHz and can be synchronized up to 1.2 MHz. Burst...
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Digital-to-Analog Converter comes in 3 x 3 mm package.
Model LTC2601 integrates voltage output 16-Bit DAC in 10-pin DFN package. It allows multiple DACs to be controlled with 3 wires using daisy-chainable SPI serial interface. Operating with voltages from 2.5-5.5 V, unit's DAC output can directly drive capacitive loads to 1,000 pF or current loads to 15 mA. Asynchronous update pin enables DAC update to be synchronized to hardware signal as well as...
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Dual 2-Phase Controller regulates low output voltages.
Synchronous dc/dc Model LTC3802, with 3-30 V input range, operates without sense resistors. Current limit is adjustable, and overcurrent is detected by sensing voltage drop across external MOSFET. With nominal 550 kHz switching frequency, phase lockable from 300-750 kHz, controller regulates output voltages as low as 0.6 V. IC employs modulation architecture and features programmable up/down...
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A/D Converter offers low power and high speed..
Housed in pin-compatible SSOP-16 package, 8-channel, 200 ksps LTC1867 offers 16-bit no missing codes over temperature and Ã-
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Supervisor monitors up to 6 supplies.
Available in SOT-23 and DFN packages, LTC2908 hex supply monitor is suited for densely packed systems with multiple, low-voltage supply rails as well as 5 or 3.3 V logic supplies. Product holds reset low with as little as 500 mV of input supply voltage. With 1.5% threshold accuracy over -40 to + 85Ã-
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DC/DC Controller offers choice of operating modes.
Model LTC3737 2-phase, 2-channel DC/DC step-down switching controller offers output tracking for proper startup of multiple voltage systems. Device features user-selectable mode to specify light load operation at high efficiency or low output ripple. For operation over max range of battery voltage or minimum input-output voltage differential, LTC3737 operates at up to 100% duty cycle regulating...
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USB Power Manager requires no external control.
Single-IC, autonomous power manager and battery charger, Model LTC4055 provides power to USB peripheral device and charges peripheral's single-cell Li-Ion battery from USB VBUS or wall adapter power supply. Unit automatically reduces battery charge current as system load current increases. Once power source is removed, current flows from battery to load through internal low loss diode. Float...
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Bus Buffer translates I-²C bus levels to 1.xV processors.
Model LTC4301L accepts input data and clock pull-up voltages as low as 1 V and level translates them to standard 3.3-5 V logic rails. It allows card insertion into live backplane without corruption of SDA and SCL lines, while providing capacitive isolation between lines even if respective supplies are at different levels. SDA and SCL pins withstand 10 kV ESD, protecting card from damage due to...
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