DC933A: Demo Board for the LT5512 1kHz-3GHz High Signal Level Active Mixer.

DC945A: Demo Board for the LT5572 1.5GHz to 2.5GHz High Linearity Direct Quadrature Modulator.

Demonstration circuit 950A-A is an isolated, 30W multi-output, synchronous flyback converter in 1/8 brick format featuring the LT3825. Output voltage sensing is implemented without the use of opto-coupler, by sensing the voltage across a primary side auxiliary winding. A load compensation circuit is used to compensate for voltage drops caused by load currents. DC950A-A has input voltage range 36V-72V and features the LT3825. Demonstration circuit 950A uses a transformer design with tapped secondary winding, to achieve higher efficiency and better cross regulation than is possible with a transformer that uses a separate winding for each output.

Demonstration circuit 950A-B is an isolated, 30W multi-output, synchronous flyback converter in 1/8 brick format featuring the LT3837. Output voltage sensing is implemented without the use of opto-coupler, by sensing the voltage across a primary side auxiliary winding. A load compensation circuit is used to compensate for voltage drops caused by load currents. DC950A-B has input voltage range 9V-36V. Demonstration circuit 950A uses a transformer design with tapped secondary winding, to achieve higher efficiency and better cross regulation than is possible with a transformer that uses a separate winding for each output.

The LT6402-20 is a low distortion, low noise differential ampli?er/ADC driver for use in applications from DC to 300MHz. The LT6402-20 has been designed for ease of use, with minimal support circuitry required. Exceptionally low input-referred noise and low distortion (with either single-ended or differential inputs) make the LT6402-20 an excellent solution for driving high speed 12-bit and 14-bit ADCs. In addition to the normal unfiltered outputs (+OUT and ?OUT), the LT6402-20 has a built-in 75MHz differential low pass filter and an additional pair of filtered outputs (+OUTFILTERED, ?OUTFILTERED) to reduce external filtering components when driving high speed ADCs. The output common mode voltage is easily set via the VOCM pin, eliminating an output transformer or AC-coupling capacitors in many applications.The LT6402-20 is designed to meet the demanding requirements of communications transceiver applications. It can be used as a differential ADC driver, a general-purpose differential gain block, or in other applications requiring differential drive. The LT6402-20 can be used in data acquisition systems required to function at frequencies down to DC.The LT6402-20 operates on a 5V supply and consumes 30mA. It comes in a compact 16-lead 3mm ? 3mm QFN package and operates over a ?40?C to 85?C temperature range.Applications Differential ADC Driver for: Imaging Communications Differential Driver/Receiver Single Ended to Differential Conversion Differential to Single Ended Conversion Level Shifting IF Sampling Receivers SAW Filter Interfacing/Buffering

Demonstration circuit 957 is a wide input range, 3.3V / 3.0A output synchronous buck-boost controller featuring the LTC3785. This circuit was designed to demonstrate the high levels of performance, efficiency, and small solution size attainable using this part in a buck-boost power supply. It operates at 500kHz and produces a regulated 3.3V, 3.0A output from an input voltage range of 2.7 to 10V. It is suitable for portable applications, and has a footprint area that is 0.36 square inches. Synchronous rectification helps to attain efficiency up to 96%, depending on line and load. The LTC3785 provides current limit and shutdown disconnect. It offers Burst Mode® operation for high efficiency at light loads.

The LT1994 is a high precision, very low noise, low distortion, fully differential input/output amplifier optimized for 3V, single supply operation. The LT1994?s output common mode voltage is independent of the input common mode voltage, and is adjustable by applying a voltage on the VOCM pin. A separate internal common mode feedback path provides accurate output phase balancing and reduced even-order harmonics. This makes the LT1994 ideal for level shifting ground referenced signals for driving differential input, single supply ADCs.The LT1994 output can swing rail-to-rail and is capable of sourcing and sinking up to 85mA. In addition to the low distortion characteristics, the LT1994 has a low input referred voltage noise of 3nV/?Hz. This part maintains its performance for supply voltages as low as 2.375V. It draws only 13.3mA of supply current and has a hardware shutdown feature that reduces current consumption to 225?A.The LT1994 is available in an 8-pin MSOP or 8-pin DFN package.Applications Differential Input A/D Converter Driver Single-Ended to Differential Conversion Differential Amplifier cation with Common Mode Translation Rail-to-Rail Differential Line Driver/Receiver Low Voltage, Low Noise, Differential Signal Processing

DC962A-D: Demo Board for the LT6600-15 Very Low Noise, Differential Amplifier and 15MHz Lowpass Filter.

DC968A-D Demo Board for: LT1952 Single Switch Synchronous Forward Controller LTC3900 Synchronous Rectifier Driver for Forward Converters LT4430 Secondary-Side Optocoupler Driver

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.

Demonstration circuit 971 is a high current density supply featuring the dual-output, 2-phase synchronous buck regulator LTC3811. The input voltage of the demo board is designed from 4.5V to 14V. The outputs are 2V/15A and 1.5V/15A. The output voltages can be programmed with different start-up tracking modes. All the critical power and controller IC circuits on the DC971 board are within a 1.45” × 0.9” “drop-in” PCB layout space. The outputs can be easily configured to have two separated output voltages or a single high current output voltage with two phases in paralleling.

The LT3482 is a fixed frequency current mode step-up DC/DC converter with voltage doubler designed to bias avalanche photodiodes (APDs) in optical receivers. It can provide up to 90V output. The LT3482 features high side APD bias current monitoring with better than 10% relative accuracy over the entire temperature range. The integrated power switch, Schottky diodes and APD bias current monitor allow a small converter footprint and low solution cost. Constant switching frequency results in predictable output noise that is easy to filter. The inductor-based topology ensures an input free from switching noise. An integrated high side current monitor produces a current proportional to APD bias current with better than 10% relative accuracy over four decades of dynamic range in the input range of 250nA to 2.5mA. This APD bias current can be used as a reference to provide a digitally programmed output voltage via the CTRL pin. The LT3482 is available in the tiny footprint (3mm ? 3mm) 16-lead QFN package.Applications APD Bias PIN Diode Bias Optical Receivers and Modules Fiber Optic Network Equipment

DC987B-C: Demo Board for the LTC6400-20 1.8GHz Low Noise, Low Distortion Differential ADC Driver for 300MHz IF.

DC987B-D: Demo Board for the LTC6400-26 1.9GHz Low Noise, Low Distortion Differential ADC Driver for DC-300MHz.

DC987B-F: Demo Board for the LTC6401-14 2GHz Low Noise, Low Distortion Differential ADC Driver for DC-140MHz.

The LTC3899 is a high performance triple output (buck/ buck/boost) DC/DC switching regulator controller that drives all N-channel synchronous power MOSFET stages. The constant frequency current mode architecture allows a phase-lockable frequency of up to 850kHz. The LTC3899 operates from a wide 4.5V to 60V input supply range. When biased from the output of the boost converter or another auxiliary supply, the LTC3899 can operate from an input supply as low as 2.2V after start-up.The gate drive for the LTC3899 can be programmed from 5V to 10V to allow the use of logic-level or standard-level FETs and to maximize efficiency. Internal switches in the top gate drivers eliminate the need for external bootstrap diodes. The 29?A no-load quiescent current extends operating run time in battery-powered systems. OPTI-LOOP? compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values.Applications Automotive Always-On and Start-Stop Systems Distributed DC Power Systems Multioutput Buck-Boost Applications

DC1935A-B: Demo Board for the LT4363 High Voltage Surge Stopper with Current Limit.

The LT8602 is a quad channel, current mode, monolithic buck switching regulator with a programmable power-on reset. All regulators are synchronized to a single oscillator with an adjustable frequency from 250kHz to 2.2MHz. The LT8602 can be configured for micropower Burst Mode operation or pulse-skipping operation at light load. Micropower operation results in quiescent current of 30?A with all four regulators operating in the application below.The high voltage channels are synchronous buck regulators that operate from an input of 3V to 42V. The output currents are up to 1.5A (OUT1) and 2.5A (OUT2). The low voltage channels operate from an input of 2.6V to 5.5V. Internal synchronous power switches provide high efficiency with output currents up to 1.8A. The LT8602 uses a 2-phase clock with channels 1 and 3 operating 180? from channels 2 and 4 to reduce input ripple current on both HV and LV inputs. All channels have cycle-by-cycle current limit, providing protection against shorted outputs. Thermal shutdown provides additional protectionThe LT8602 is available in either a 40-lead 6mm ? 6mm QFN or a 48-Lead 7mm ? 7mm LQFP package.APPLICATIONS Automotive Systems Distributed Supply Regulation Industrial Controls and Power Supplies

DC194A-B: Demo Board for the LT1317 Micropower, 600kHz PWM DC/DC Converters.

The LTM2892 is a complete galvanic digital ?Module? (micromodule) isolator. No external components are required. Individual 3V to 5.5V supplies power each side of the digital isolator. Separate logic supply pins allow easy interfacing with different logic levels from 1.62V to 5.5V, independent of the main supply.Module options are available with compatibility to SPI (LTM2892-S) and I2C (LTM2892-I), master mode only, specifications.Coupled inductors provide 3500VRMS of isolation between the input and output logic interface. This device is ideal for systems where the ground loop is broken, allowing uninterrupted communication through large common mode transients faster than 50kV/?s.Applications Isolated SPI or I2C Interfaces Industrial Systems Test and Measurement Equipment Breaking Ground Loops