The LT8641 step-down regulator features Silent Switcher architecture designed to minimize EMI/EMC emissions while delivering high efficiency at frequencies up to 3MHz. Assembled in a 3mm ? 4mm QFN, the monolithic construction with integrated power switches and inclusion of all necessary circuitry yields a solution with a minimal PCB footprint. An ultralow 2.5?A quiescent current?with the output in full regulation?enables applications requiring highest efficiency at very small load currents. Transient response remains excellent and output voltage ripple is below 10mVP-P at any load, from zero to full current.The LT8641 allows high VIN to low VOUT conversion at high frequency with a fast minimum top switch on-time of 35ns. Operation is safe in overload even with a saturated inductor.Essential features are included and easy to use: An open-drain PG pin signals when the output is in regulation. The SYNC/MODE pin selects between Burst Mode, pulse-skipping, or spread spectrum mode, and also allows synchronization to an external clock. Soft-start and tracking functionality is accessed via the TR/SS pin. An accurate enable threshold can be set using the EN/UV pin and a resistor at the RT pin programs switch frequency.APPLICATIONS Automotive and Industrial Supplies General Purpose Step-Down GSM Power Supplies

The LTC2664 is a family of four-channel, 16-/12-bit ?10V digital-to-analog converters with integrated precision references. They are guaranteed monotonic and have built-in rail-to-rail output buffers. These SoftSpan? DACs offer five output ranges up to ?10V. The range of each channel is independently programmable, or the part can be hardware-configured for operation in a fixed range.The integrated 2.5V reference is buffered separately to each channel; an external reference can be used for additional range options. The LTC2664 also includes A/B toggle capability via a dedicated pin or software toggle command.The SPI/Microwire-compatible 3-wire serial interface operates on logic levels as low as 1.71V at clock rates up to 50MHz.Applications Optical Networking Instrumentation Data Acquisition Automatic Test Equipment Process Control and Industrial Automation

DC238A: Demo Board for the LT1506 4.5A, 500kHz Step-Down Switching Regulator.

The LTC2320-16 is a low noise, high speed octal 16?bit successive approximation register (SAR) ADC with differential inputs and wide input common mode range. Operating from a single 3.3V or 5V supply, the LTC2320-16 has an 8VP-P differential input range, making it ideal for applications which require a wide dynamic range with high common mode rejection. The LTC2320-16 achieves ?2LSB INL typical, no missing codes at 16 bits and 82dB SNR.The LTC2320-16 has an onboard low drift (20ppm/?C max) 2.048V or 4.096V temperature-compensated reference. The LTC2320-16 also has a high speed SPI-compatible serial interface that supports CMOS or LVDS. The fast 1.5Msps per channel throughput with no latency makes the LTC2320-16 ideally suited for a wide variety of high speed applications. The LTC2320-16 dissipates only 20mW per channel and offers nap and sleep modes to reduce the power consumption to 26?W for further power savings during inactive periods.Applications High Speed Data Acquisition Systems Communications Optical Networking Multiphase Motor Control

The LTC2324-12 is a low noise, high speed quad 12-bit + sign successive approximation register (SAR) ADC with differential inputs and wide input common mode range. Operating from a single 3.3V or 5V supply, the LTC2324- 12 has an 8VP-P differential input range, making it ideal for applications which require a wide dynamic range with high common mode rejection. The LTC2324-12 achieves ?0.5LSB INL typical, no missing codes at 12 bits and 78dB SNR.The LTC2324-12 has an onboard low drift (20ppm/?C max) 2.048V or 4.096V temperature-compensated reference. The LTC2324-12 also has a high speed SPI-compatible serial interface that supports CMOS or LVDS. The fast 2Msps per channel throughput with no latency makes the LTC2324-12 ideally suited for a wide variety of high speed applications. The LTC2324-12 dissipates only 40mW per channel and offers nap and sleep modes to reduce the power consumption to 26?W for further power savings during inactive periods.Applications High Speed Data Acquisition Systems Communications Optical Networking Multiphase Motor Control

The LT6236/LT6237/LT6238 are single/dual/quad low noise, rail-to-rail output op amps that feature 1.1nV/?Hz input referred noise voltage density and draw only 3.5mA of supply current per amplifier. These amplifiers combine very low noise and supply current with a 215MHz gain bandwidth product and a 70V/?s slew rate. Low noise, fast settling time and low offset voltage make this amplifier optimal to drive low noise, high speed SAR ADCs. The LT6236 includes a shutdown feature that can be used to reduce the supply current to less than 10?A.This amplifier family has an output that swings within 50mV of either supply rail to maximize the signal dynamic range in low supply applications and is specified on 3.3V, 5V and ?5V supplies.The LT6236/LT6237/LT6238 are upgrades to the LT6230/LT6231/LT6232, offering similar performance with reduced wideband noise beyond 100kHz.Applications 16-Bit and 18-Bit SAR ADC Drivers Active Filters Low Noise, Low Power Signal Processing

The LTC4367 protects applications where power supply input voltages may be too high, too low or even negative. It does this by controlling the gate voltages of a pair of external N-channel MOSFETs to ensure that the output stays within a safe operating range.The LTC4367 withstands voltages between ?40V and 100V and has an operating range of 2.5V to 60V, while consuming only 70?A in normal operation.Two comparator inputs allow configuration of the overvoltage (OV) and undervoltage (UV) set points using an external resistive divider. A shutdown pin provides external control for enabling and disabling the MOSFETs as well as placing the device in a low current shutdown state. A fault output indicates that the GATE pin is pulling low when the part is in shutdown or the input voltage is outside the UV and OV set points.The LTC4367 has a 32ms turn-on delay that debounces live connections and blocks 50Hz to 60Hz AC power. For fast recovery after faults, the LTC4367-1 has a reduced turn-on delay of 500?s.Applications Portable InstrumentationIndustrial AutomationAutomotive Surge (Load Dump) ProtectionNetwork Equipment

The LTC2311-14 is a low noise, high speed 14-bit + sign successive approximation register (SAR) ADC with differential inputs and wide input common mode range. Operating from a single 3.3V or 5V supply, the LTC2311- 14 has an 8VP-P differential input range, making it ideal for applications which require a wide dynamic range with high common mode rejection. The LTC2311-14 achieves ?0.75LSB INL typical, no missing codes at 14 bits and 80dB SNR typical.The LTC2311-14 has an onboard low drift (20ppm/?C max) 2.048V or 4.096V temperature compensated reference and provides an external 1.25V buffered reference input. The LTC2311-14 also has a high speed SPI-compatible serial interface that supports CMOS or LVDS. The fast 5Msps throughput with one-cycle latency makes the LTC2311-14 ideally suited for a wide variety of high speed applications. The LTC2311-14 dissipates only 50mW with a 5V supply and offers nap and sleep modes to reduce the power consumption to 5?W for further power savings during inactive periods.Applications High Speed Data Acquisition Systems Communications Remote Data Acquisition Imaging Optical Networking Automotive Multiphase Motor Control

Demonstration circuit 2432B features the LT6658, a precision dual output reference that combines the performance of a low drift low noise reference and a linear regulator. Demonstration circuits are available with 1.25V, 1.8V, 2.5V, 3.0V, 3.3V and 5V output option parts. Both outputs are ideal for driving the precision reference inputs of high resolution ADCs and DACs, even with heavy loading while simultaneously acting as output supplies for powering microcontrollers and other supporting devices. Both outputs have the same precision specifications and A track each other over temperature. Each output can be configured with external resistors to give an output voltage up to 6V.

The LTC7813 is a high performance synchronous Boost+Buck DC/DC switching regulator controller that drives all N-channel power MOSFET stages. It contains independent step-up (boost) and step-down (buck) controllers that can regulate two separate outputs or be cascaded to regulate an output voltage from an input voltage that can be above, below, or equal to the output voltage. The LTC7813 operates from a wide 4.5V to 60V input supply range. When biased from the output of the boost regulator, the LTC7813 can operate from an input supply as low as 2.2V after start-up. The 34?A no-load quiescent current (both channels on) extends operating runtime in battery-powered systems.Unlike conventional buck-boost regulators, the LTC7813?s cascaded Boost+Buck solution has continuous, nonpulsating, input and output currents, substantially reducing voltage ripple and EMI. The LTC7813 has independent feedback and compensation points for the boost and buck regulation loops, enabling a fast output transient response that can be externally optimized.Applications Automotive and Industrial Power Systems High Power Battery Operated Systems