Linear Technology Corp.
Milpitas, CA 95035
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Precision Rail-to-Rail Op Amp draws 150 -µA supply current.
Suited for low-power instrumentation applications, LT6011 offers input offset voltage below 75 Ã-µV, input bias current of less than 0.9 nA, and noise voltage density of 14nV/HzÃ-½. Additional characteristics include open loop gain of 120 dB (min), CMRR of over 115 dB, and input offset voltage drift of 0.8 Ã-µV/Ã-
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DC/DC Converter delivers 250 mA/channel without inductors.
Model LTC3252 spread spectrum, step-down DC/DC converter can deliver 250 mA continuous output to 2 separate channels. It operates from 2.7-5.5 V, making it suitable for single cell Li-Ion or multi-cell NiMH/Alkaline applications. Both outputs are resistor programmable from 0.9-1.6 V. Switched capacitor fractional conversion enables it to attain efficiencies as high as 88%. Switching frequency...
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Controller minimizes transformer size in power supplies.
Pulse Width Modulator Model LT1950 employs control mechanism that protects, simplifies, and reduces size of isolated/non-isolated 15-500 W power supplies with 24 and 48 V input supply rails. Adaptive maximum-duty-cycle clamp circuit prevents transformer saturation and protects MOSFET from failures. Adjustable current-slope compensation allows optimization of transient response. Operating...
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Interface Controller simplifies powered device design.
Model LTC4257 Power over Ethernet Interface Controller incorporates circuitry necessary to connect powered device to IEEE 802.3af powered Ethernet network. Offered in SO-8 package, -48V powered unit incorporates 25 k signature resistance, programmable classification, power switching, inrush current limiting, and fault protection. Integrated 100 V power MOSFET keeps PD circuitry disconnected from...
Read More »Buck-Boost Battery Charger eliminates DC/DC converter.
Model LTC1980 switching regulator battery charger combines battery charging and system power supply functions into small 24-lead SSOP. It operates from regulated or unregulated input supply voltage, which can be above or below battery voltage by automatically performing step-up or step-down DC/DC conversion. Stand-alone, single- and dual-cell Li-Ion charger also charges NiCd, NiMH and lead-acid...
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Analog-To-Digital Converter digitizes high-frequency signals.
Model LTC1748 80 Msps, 14-bit converter offers 76.3 dB signal to noise ratio and 90 dB spurious free dynamic range for high speed applications. Undersampling 70 MHz input, unit delivers 75.4 dB SNR and 80 dB SFDR. Sample and hold bandwidth of 250 MHz allows for undersampling of input frequencies in excess of 70 MHz. Input can span Ã-
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Rail-to-Rail Op Amps provide low noise, 0.95nV/rtHz operation.
Model LT6200-10 features 1.6 GHz gain bandwidth product, 450 V/Ã-µs slew rate, and is stable at gains of 10 or higher. Model LT6200-5 features 800 MHz gain bandwidth product, 250 V/Ã-µs slew rate, and is stable at gains of 5 or higher. Operating on single or split supplies from 2.5-12.6 V total, units feature shutdown pin that reduces supply current to
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LED Driver integrates Schottky diode on-chip.
Model LT3465 consists of switching, constant current, white LED driver in ThinSOT(TM) package. Capable of driving up to 6 white LEDs from one Li-Ion cell, it offers efficiencies to 81% and switches at 1.2 MHz. Unit provides constant frequency PWM operation and delivers same current to each LED, regardless of variations in forward voltage drop. It offers output voltage limiting, one-pin dimming...
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Positive Hot Swap(TM) Controller offers open circuit detection.
Model LT4254 allows boards with supplies from 10.8-36 V to be safely inserted into live backplane without risking damage to connectors or causing glitches. IC provides open circuit detect output that indicates abnormally low load current conditions or no load presence, while adjustable current limit is programmable through sense resistor. Product also offers foldback current limiting Power Good...
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Converters boast power saving efficiency.
LTC3734 and LTC3735 DC/DC converters have 550 kHz operating frequency and power Intel's CentrinoÃ-® mobile technology for thin and light notebook PCs. Converters are synchronous step-down DC/DC controllers with integrated MOSFET drivers and IntelÃ-® PentiumÃ-® M compatible power saving mode. Single-phase and PolyPhaseÃ-® units provide up to 20 and 40 A load current respectively,...
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