The LTC2751 is a family of 12-, 14-, and 16-bit multiplying parallel-input, current-output DACs. They operate from a single 2.7V to 5.5V supply. All parts are guaranteed monotonic over temperature. The LTC2751A-16 provides 16-bit performance (?1LSB INL and DNL) overtemperature without any adjustments. These SoftSpan? DACs offer six output ranges ? two unipolar and four bipolar ? that can be programmed through the parallel interface, or pin strapped for operation in a single range.These parts use a bidirectional input/output parallel interface that allows read back of any on-chip register. A power-on circuit resets the DAC output to 0V when power is initially applied. A logic low on the CLR pin asynchronously clears the DAC to 0V in any output range. The parts are specified over commercial and industrial temperature ranges.Applications High Resolution Offset and Gain Adjustment Process Control and Industrial Automation Automatic Test Equipment Data Acquisition Systems

The HMC1119 is a broadband, highly accurate, 7-bit digitalattenuator, operating from 0.1 GHz to 6.0 GHz with 31.5 dBattenuation control range in 0.25 dB steps.The HMC1119 is implemented in a silicon process, offeringvery fast settling time, low power consumption, and high ESDrobustness. The device features safe state transitions and isoptimized for excellent step accuracy and high linearity overfrequency and temperature range. The RF input and output areinternally matched to 50 ? and do not require any externalmatching components. The design is bidirectional; therefore,the RF input and output are interchangeable.The HMC1119 has an on-chip regulator that can support a widesupply operating range from 3.3 V to 5.0 V with no performancechange in electrical characteristics. The HMC1119 incorporates adriver that supports serial (3-wire) and parallel controls of theattenuator.The HMC1119 comes in a RoHS-compliant, compact, 4 mm ?4 mm LFCSP package.A fully populated evaluation board is available.Applications Cellular infrastructure Microwave radios and very small aperture terminals (VSATs) Test equipment and sensors IF and RF designs

The ADF4153A is a fractional-N frequency synthesizer that implements local oscillators in the upconversion and downconversion sections of wireless receivers and transmitters. It consists of a low noise digital phase frequency detector (PFD), a precision charge pump, and a programmable reference divider. A sigma-delta (?-?) based fractional interpolator allows programmable fractional-N division. The INT, FRAC, and MOD registers define an overall N divider (N = (INT + (FRAC/MOD))). In addition, the 4-bit reference counter (R counter) allows selectable REFIN frequencies at the PFD input. A complete phase-locked loop (PLL) can be implemented if the synthesizer is used with an external loop filter and a voltage controlled oscillator (VCO).A simple 3-wire interface controls all on-chip registers. The device operates with a power supply ranging from 2.7 V to 3.3 V and can be powered down when not in use.Applications CATV equipment Base stations for mobile radio (GSM, PCS, DCS, WiMAX, SuperCell 3G, CDMA, W-CDMA) Wireless handsets (GSM, PCS, DCS, CDMA, W-CDMA) Wireless LANs, PMR Communications test equipment

Demonstration circuit DC1129A is a synchronous step down converter featuring the LTC3610, the high efficiency, high density DC/DC regulator. The input voltage range is from 4.5V to 24V. The output voltage is jumper-selectable and provides 1.2V, 1.5V, 1.8V or 2.5V at 12A load current. The regulator includes the controller and power MOSFETs in the 9mm by 9 mm QFN package.

DC1130A: Demo Board for the LT3477 3A, DC/DC Converter with Dual Rail-to-Rail Current Sense.

DC1132A: Demo Board for the LTC3566 High Efficiency USB Power Manager Plus 1A Buck-Boost Converter.

DC1133A-C: Demo Board for LTC2240-12 12-Bit, 170Msps ADC

DC1140A: Demo Board for LTC3567 High Efficiency USB Power Manager Plus 1A Buck-Boost Converter with I2C Control

The LT3825 is an isolated switching regulator controller designed for medium power flyback topologies. A typical application is 10W to 60W with input voltage limited only by external power path components. A third transformer winding provides output voltage feedback.The LT3825 is a current mode controller that regulates output voltage based on sensing secondary voltage via a transformer winding during flyback. This allows for tight output regulation without the use of an opto-isolator, improving dynamic response and reliability. Synchronous rectification increases converter efficiency and improves output cross regulation in multiple output converters.The LT3825 operates in forced continuous conduction mode which improves cross regulation in multiple winding applications. Switching frequency is user programmable and can be externally synchronized. The part also has load compensation, undervoltage lockout and soft-start circuity.Applications Isolated Medium Power (10W to 60W) Supplies Isolated Telecom, Medical Converters Instrumentation Power Supplies Isolated Power over Ethernet Supplies

75V; 1.5A Step-Down Switching Regulator Evaluation Module