DC1962C Demo Board for: LTC2974 4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement LTC3880 Dual Output PolyPhase Step-Down DC/DC Controller with Digital Power System Management LTC2977 8-Channel PMBus Power System Manager Featuring Accurate Output Voltage Measurement

Demonstration circuit 1989B-B is a high efficiency, high density, μModule regulator with 4.5V to 17V input range. The output voltage is adjustable from 0.5V to 4V, and it can supply 75A maximum load current. The demo board has three LTM4676A μModule regulators, and the LTM4676A is a dual 13A or single 26A step-down regulator with PMBus power system management. Please see LTM4676A data sheet for more detailed information.

The LTC2323-14 is a low noise, high speed dual 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 LTC2323-14 has an 8VP-P differential input range, making it ideal for applications which require a wide dynamic range with high common mode rejection. The LTC2323-14 achieves ?1LSB INL typical, no missing codes at 14 bits and 80dB SNR.The LTC2323-14 has an on-board low drift (20ppm/?C max) 2.048V or 4.096V temperature-compensated reference. The LTC2323-14 also has a high speed SPI-compatible serial interface that supports CMOS or LVDS. The fast 5Msps per channel throughput with one-cycle latency makes the LTC2323-14 ideally suited for a wide variety of high speed applications. The LTC2323-14 dissipates only 38mW per channel and offers nap and sleep modes to reduce the power consumption to 5?W for further power savings during inactive periods. Bits LTC2323-12 12 LTC2323-14 14 LTC2323-16 16 Applications High Speed Data Acquisition Systems Communications Remote Data Acquisition Imaging Optical Networking Automotive Multiphase Motor Control

The LTC3862-2 is a two-phase constant frequency, current mode boost and SEPIC controller that drives N-channel power MOSFETs. Two-phase operation reduces system filtering capacitance and inductance requirements.The operating frequency can be set with an external resistor over a 75kHz to 500kHz range and can be synchronized to an external clock using the internal PLL. Multiphase operation is possible using the SYNC input, the CLKOUT output and the PHASEMODE control pin allowing 2-, 3-, 4-, 6- or 12-phase operation.Other features include an internal 10V LDO with undervoltage lockout protection for the gate drivers, a precision RUN pin threshold with programmable hysteresis, soft-start and programmable leading edge blanking and maximum duty cycle. Part Number Vin Range INTVcc UV+ UV- LTC3862 4V to 36V 5V 3.3V 2.9V LTC3862-1 8.5V to 36V 10V 7.5V 7.0V LTC3862-2 5.5V to 36V 10V 4.4V 3.9V Applications Automotive, Telecom and Industrial Power Supplies

The LTC1625 is a synchronous step-down switching regulator controller that drives external N-Channel power MOSFETs using few external components. Current mode control with MOSFET VDS sensing eliminates the need for a sense resistor and improves efficiency. The frequency of a nominal 150kHz internal oscillator can be synchronized to an external clock over a 1.5:1 frequency range.Burst Mode? operation at low load currents reduces switching losses and low dropout operation extends operating time in battery-powered systems. A forced continuous mode control pin can assist secondary winding regulation by disabling Burst Mode operation when the main output is lightly loaded.Fault protection is provided by foldback current limiting and an output overvoltage comparator. An external capacitor attached to the RUN/SS pin provides soft start capability for supply sequencing. A wide supply range allows operation from 3.7V (3.9V for LTC1625I) to 36V at the input and 1.19V to VIN at the output.Applications Notebook and Palmtop Computers, PDAs Cellular Telephones and Wireless Modems Battery Chargers Distributed Power

The LTC1419 is a 1?s, 800ksps, 14-bit sampling A/D converter that draws only 150mW from ?5V supplies. This easy-to-use device includes a high dynamic range sample-and-hold and a precision reference. Two digitally selectable power shutdown modes provide flexibility for low power systems.The LTC1419 has a full-scale input range of ?2.5V. Outstanding AC performance includes 81.5dB S/(N + D) and 93dB THD with a 100kHz input; 80dB S/(N + D) and 86dB THD at the Nyquist input frequency of 400kHz.The unique differential input sample-and-hold can acquire single-ended or differential input signals up to its 20MHz bandwidth. The 60dB common mode rejection allows users to eliminate ground loops and common mode noise by measuring signals differentially from the source.The ADC has a ?P compatible, 14-bit parallel output port. There is no pipeline delay in the conversion results. A separate convert start input and data ready signal (BUSY) ease connections to FIFOs, DSPs and microprocessors.Third Party Vendor AvailabilityADI partners with third party vendors who assemble and test packaged products with RH Dice inside. Part Number Description SCD or SMD# RAD1419 14-Bit, 800ksps Sampling ADC With Shutdown View Applications Telecommunications Digital Signal Processing Multiplexed Data Acquisition Systems High Speed Data Acquisition Spectrum Analysis Imaging Systems

Demonstration circuit 2010A is a 42V, 6A micropower synchronous step-down regulator featuring the LT8612. The demo board is designed for 5V output from a 5.8V to 42V input. The wide input range allows a variety of input sources, such as automotive batteries and industrial supplies. The LT8612 is a compact, high efficiency, and high speed synchronous monolithic step-down switching regulator. The integrated power switches and inclusion of all necessary circuitry reduce the components count and solution size. Ultralow 3μA quiescent current in Burst Mode® operation achieves high efficiency at very light loads. Fast minimum on-time of 40ns enables high VIN to low VOUT conversion at high frequency.

The HMC728 is a 2:1 Selector designed to support data transmission rates of up to 13 Gbps, and selector port operation of up to 13 GHz. The selector routes one of the two single-ended inputs to the differential output upon assertion of the proper select port. All single-ended input signals to the HMC728 are terminated with 50 ohms to ground on-chip, and may be either AC or DC coupled.The outputs of the HMC728 may be operated either differentially or single-ended. Outputs can be connected directly to a 50 ohm terminated system, while DC blocking capacitors may be used if the terminating system is 50 ohms to a non-ground DC voltage. The HMC728 operates from a single -3.3V DC supply and is available in a ceramic RoHS compliant 3x3 mm SMT package.APPLICATIONS 2:1 Multiplexer up to 13 Gbps F ATE Applications Broadband Test & Measurement Serial Data Transmission up to 13 Gbps Redundant Path Switching Built-in Test

The HMC698LP5(E) is a frequency synthesizer with a wideband reversible polarity digital PFD and lock detect output. The divider operates unconditionally from 80 - 7000 MHz with a continuous integer division ratio of 12 to 259. The HMC698LP5(E) high frequency operation along with ultra low phase noise floor make possible synthesizers with wide loop bandwidth and low N resulting in fast settling and very low phase noise. When used in conjunction with a differential loop filter, the HMC698LP5(E) can be used to phase lock a VCO to a reference oscillator.Applications Satellite Communication Systems Point-to-Point Radios Military Applications Sonet Clock Generation

The HMC959LC3 is a Divide-by-4 with Reset designed to support clock frequencies as high as 26 GHz. During normal operation, with the reset pin not asserted, the output toggles from its prior state on the positive edge of the clock. This results in a divide-by-four function of the clock input. Asserting the reset pin forces the Q output low regardless of the clock edge state (asynchronous reset assertion). Reversing the clock inputs allows for negative-edge triggered applications. The HMC959LC3 also features an output level control pin, VR, which allows for loss compensation or for signal level optimization.All input signals to the HMC959LC3 are terminated with 50 ? to ground on-chip, and may be either AC or DC coupled. Outputs can be connected directly to a 50 ? terminated system, while DC blocking capacitors may be used if the terminating system is 50 ? to a non-ground DC voltage. The HMC959LC3 operates from a single -3.3 V DC supply and is available in a ceramic RoHS-compliant 3?3 mm SMT package.APPLICATIONS High Speed Frequency Divider?(up to 26 GHz) Broadband Test & Measurement Clock Synthesis Phase Locked Loops