Evaluation circuit EVAL-LT8334-AZ features the LT8334 in a SEPIC configuration. It operates with a switching frequency of 2MHz and is designed to convert a 3V to 26V source to 12V output. The converter can output up to 2.2A depending on the input voltage (see Figure 3 in the user guide for the maximum output current vs VIN curve). This evaluation circuit features Spread Spectrum Frequency Modulation (SSFM), EMI filters, and space for an option EMI shield to provide optimum EMI performance. This PCB layout is optimized for good EMI performance and small solution size. The evaluation board contains a selectable jumper, JP1, to aid in the selection of the desired SYNC pin mode of operation. At light load, either PULSE SKIP or low-ripple BURST mode can be selected to improve the efficiency. The LT8334 boost/SEPIC/inverting converter IC operates over an input range of 2.8V to 40V, suitable for automotive, telecom, and industrial applications. The converter provides adjustable and synchronizable operation from 300kHz to 2MHz with SSFM option. The LT8334 packs other popular features such as soft-start, bias pin, input undervoltage lockout. The IC can exhibit a low quiescent current down to 9μA in BURST mode and 1μA in shutdown, which makes it ideal for battery-operated systems. The LT8334 is assembled in a thermally enhanced 12-lead 4mm × 3mm DFN package. The data sheet gives a complete description of the device, operation, and applications information. The data sheet must be read in conjunction with the demo manual for EVAL-LT8334-AZ.

The LTC4306 is a 4-channel, 2-wire bus multiplexer with bus buffers to provide capacitive isolation between the upstream bus and downstream buses. Through software control, the LTC4306 connects the upstream 2-wire bus to any desired combination of downstream buses. Each channel can be pulled up to a supply voltage ranging from 2.2V to 5.5V, independent of the LTC4306 supply voltage.The downstream channels are also provided with ALERT1-ALERT4 inputs for fault reporting.Programmable timeout circuitry disconnects the downstream buses if the bus is stuck low. When activated, rise time accelerators source currents into the 2-wire bus pins to reduce rise time. Driving the ENABLE pin low restores all features to their default states. Three address pins provide 27 distinct addresses.The LTC4306 is available in 24-lead QFN (4mm ? 5mm) and SSOP packages.Applications Nested Addressing 5V/3.3V Level Translator Capacitance Buffer/Bus Extender

The LTC6226 are very fast, low noise rail-to-rail output, unity gain stable single/dual op amps, with a gainbandwidth product of 420MHz and a slew rate of 180V/?s. The low input referred voltage noise of only 1nV/?Hz and low distortion of less than ?90dBC for 4VP-P signals at 1MHz makes them ideal for applications that require high dynamic range and deal with very fast signals, such as driving A/D converters.The combination of low offset, low offset drift, high gain (139dB) and high CMRR (114dB) make these excellent devices for high dynamic range applications.The LTC6226 family maintains excellent performance for supply voltages of 2.8V to 11.75V and the devices are fully specified at supplies of 3V, 5V and 10V (?5V).With an input range extending to the negative rail and rail-to-rail output stage, the operational amplifier can accommodate wide swinging signals, and true single supply operation.For space constrained applications, the amplifiers come in 2mm ? 2mm DFN (single) and 3mm ? 3mm DFN (dual) packages. The devices are also available in 8-lead SOIC,TSOT-23 and MS8E.These amplifiers can be used as replacements for many high speed op amps to improve speed, noise and dynamic range.?Applications Optical Electronics: Fast AC-Coupled Transimpedance Amplifiers Driving High Dynamic Range A/D Converters Active Filters Video Amplifiers Low Voltage Low Distortion Amplification

The LTC2228/LTC2227/LTC2226 are 12-bit 65Msps/40Msps/25Msps, low power 3V A/D converters designed for digitizing high frequency, wide dynamic range signals. The LTC2228/LTC2227/LTC2226 are perfect for demanding imaging and communications applications with AC performance that includes 71dB SNR and 80dB SFDR for signals at the Nyquist frequency.DC specs include ?0.3LSB INL (typ), ?0.15LSB DNL (typ) and no missing codes over temperature. The transition noise is a low 0.25LSBRMS.A single 3V supply allows low power operation. A separate output supply allows the outputs to drive 0.5V to 3.6Vlogic.A single-ended CLK input controls converter operation. An optional clock duty cycle stabilizer allows high performance at full speed for a wide range of clock duty cycles.Applications Wireless and Wired Broadband Communication Imaging Systems Ultrasound Spectral Analysis Portable Instrumentation

The LTC4060 is a complete fast charging system for NiMH or NiCd batteries. Just a few external components are needed to design a standalone linear charging system.An external PNP transistor provides charge current that is user programmable with a resistor. A small external capacitor sets the maximum charge time. No external current sense resistor is needed, and no blocking diode is required.The IC automatically senses the DC input supply and battery insertion or removal. Heavily discharged batteries are initially charged at a C/5 rate before a fast charge is applied. Fast charge is terminated using the ??V detection method. Backup termination consists of a programmable timer and battery overvoltage detector. An optional external NTC thermistor can be used for temperature-based qualification of charging. An optional programmable recharge feature automatically recharges batteries after discharge.Manual shutdown is accomplished with the SHDN pin, while removing input power automatically puts the LTC4060 into sleep mode. During shutdown or sleep mode, battery drain is <1?A.The LTC4060 is available in both low profile (0.75mm) 16- pin 5mm ? 3mm DFN and 16-lead TSSOP packages. Both feature exposed metal die mount pads for optimum thermal performance.Applications Portable Computers, Cellular Phones and PDAs Medical Equipment Charging Docks and Cradles Portable Consumer Electronics

DC807A: Demo Board for the LT5524 Low Distortion IF Amplifier/ADC Driver with Digitally Controlled Gain.

Demo circuit 964A is a dual monolithic step-down DC/DC converter featuring the LT3501. The demo circuit is designed for 3.3V/3A and 1.8V/3A outputs from a 4.5V to 24V input. Independent input voltage, feedback, soft-start and power good pins for each channel simplify complex power supply tracking/sequencing requirements.

Demonstration circuit DC970A-A and DC970A-B feature the LTC3541 and LTC3541-1 respectfully, and provide a high efficiency, synchronous buck plus VLDO linear regulator. For the LTC3541, the buck regulator powers up before the linear regular, and for the LTC3541-1, the linear regulator powers up first. The DC970A has an input voltage range of 3.0V to 5.5V. The jumper selectable (2.5V or 1.8V) buck regulator output is capable of delivering up to 500mA of output current; the jumper selectable (0.8V, 1.2V, 1.5V or 1.8V) linear regulator output is capable of delivering up to 300mA of current.

HMC983LP5E is a fractional frequency divider targeted for fractional-N frequency synthesis, and stand-alone low noise frequency divider applications that require exceptional spurious performance.Although the HMC983LP5E can work with any VCO and/or compatible Phase Detector, best performance and features will be achieved when paired with the companion part, the HMC984LP4E.Fabricated in SiGe BiCMOS process, the HMC983LP5E features a 48-bit Delta Sigma Fractional Modulator (DSM) with programmable phase accumulator size, enabling precise control of frequency step size and resolution. Integrated DSM can generate frequencies with nearly 0 Hz frequency error. The DSM also includes a built-in programmable frequency sweep capability, with various automatic and user defined sweep modes and triggering options, including hardware trigger pin, or SPI trigger with optional delayed trigger.HMC983LP5E is a versatile part capable of various configurations. It has 5 general purpose I/Os (GPIOs). DSM outputs are made available from the GPIO port, enabling the HMC983LP5E to import and/or export DSM sequences for various configuration options.HMC983LP5E divider outputs are differential, open collector with programmable current to accommodate different off-chip loads.Applications Test Equipment Portable Instruments High Performance Fractional-N Frequency Synthesizers with Ultra Low Spurious Stand-Alone Divider and/or Delta-Sigma Modulator

The HMC1132PM5E is a four-stage, gallium arsenide (GaAs) pseudomorphic high electron mobility transistor (pHEMT), monolithic microwave integrated circuit (MMIC) power amplifier. The device operates from 27 GHz to 32 GHz, providing 24 dB of gain and 29.5 dBm of saturated output power from a 5 V power supply.The HMC1132PM5E exhibits excellent linearity with high output third-order intercept (IP3) of 37 dBm, and it is optimized for high capacity, point to point and point to multipoint radio systems. The amplifier configuration and high gain make the HMC1132PM5E an ideal candidate for last stage signal amplification before the antenna.The HMC1132PM5E amplifier input/outputs (I/Os) are internally matched to 50 ?. The device is housed in a RoHS compliant, premolded cavity, 5 mm ? 5 mm LFCSP package, making the device compatible with high volume surface-mount technology (SMT) assembly equipment.APPLICATIONS Point-to-point radios Point-to-multipoint radios Very small aperture terminals (VSATs) and satellite communication (SATCOM) Military and space