The LTM4639 is a complete 20A output high efficiency switch mode step-down DC/DC ?Module (power module) regulator. Included in the package are the switching controller, power FETs, inductor and compensation components. Operating over an input voltage range from 2.375V to 7V, the LTM4639 supports an output voltage range of 0.6V to 5.5V, set by a single external resistor. Only a few input and output capacitors are needed.Current mode operation allows precision current sharing of up to four LTM4639 regulators to obtain up to 80A output. High switching frequency and a current mode architecture enable a very fast transient response to line and load changes without sacrificing stability. The device supports frequency synchronization, multiphase/current sharing, Burst Mode operation and output voltage tracking for supply rail sequencing. A diode-connected PNP transistor is included for use as an internal temperature monitor. For up to 20V input operation, please see the LTM4637.The LTM4639 is offered in a 15mm ? 15mm ? 4.92mm BGA package. The LTM4639 is RoHS compliant.Applications Telecom Servers and Networking Equipment Industrial Equipment Medical Systems High Ambient Temperature Systems 3.3V Input Systems

The LTC4371 is a two-input negative voltage ideal diode-OR controller that drives external N-channel MOSFETs as a low dissipation alternative to Schottky diodes in high power ?48V systems. Low power dissipation and voltage loss eliminates the need for heatsinks and reduces PC board area. Power sources can be easily ORed together to increase total system power and reliability.The LTC4371 tolerates ?300V transients such as those experienced during lightning-induced surges and input supply short-circuit events. The internal shunt regulator and low 350?A quiescent current allow the use of a large value dropping resistor to protect the supply pin against high voltage transients, while the high impedance drain pins can be similarly protected by high value series resistors without compromising diode operation.The 220ns reverse current turn-off is achieved by a powerful 2A gate driver with low propagation delay, thereby minimizing peak reverse current under catastrophic fault conditions. Open MOSFET and fuse faults are indicated at the FAULTB pin, which is capable of sinking 5mA to drive an LED or opto isolator.Applications ?48V Telecom Power AdvancedTCA Systems Network Routers and Switches Computer Systems and Servers

The LTC2107 is a 16-bit, 210Msps high performance ADC. The combination of high sample rate, low noise and high linearity enable a new generation of digital radio designs. The direct sampling front-end is designed specifically for the most demanding receiver applications such as software defined radio and multi-channel GSM base stations. The AC performance includes, SNR = 80dBFS, SFDR = 98dBFS. Aperture jitter = 45fsRMS allows direct sampling of IF frequencies up to 500MHz with excellent performance.Features such as internal dither, a PGA front-end and digital output randomization help maximize performance. Modes of operation can be controlled through a 3-wire serial interface (SPI).The double data rate (DDR) low voltage differential (LVDS) digital outputs help reduce digital line count and enable space saving designs.Applications Software Defined Radios Military Radio and RADAR Cellular Base Stations Spectral Analysis Imaging Systems ATE and Instrumentation

The LT8580 is a PWM DC/DC converter containing an internal 1A, 65V switch. The LT8580 can be configured as either a boost, SEPIC or inverting converter.The LT8580 has an adjustable oscillator, set by a resistor from the RT pin to ground. Additionally, the LT8580 can be synchronized to an external clock. The switching frequency of the part may be free running or synchronized, and can be set between 200kHz and 1.5MHz.The LT8580 also features innovative SHDN pin circuitry that allows for slowly varying input signals and an adjustable undervoltage lockout function.Additional features such as frequency foldback and soft-start are integrated. The LT8580 is available in tiny thermally enhanced 3mm ? 3mm 8-lead DFN and 8-lead MSOP packages.APPLICATIONS VFD Bias Supplies TFT-LCD Bias Supplies GPS Receivers DSL Modems Local Power Supply

Demonstration circuit 2192B is a fuel cell monitor featuring the LTC6806, a 36-channel fuel cell monitor. Multiple boards can be linked through a 2-wire isolated serial interface (isoSPI™) to monitor a long series of cells in a stack. The DC2192B demo circuit also features reversible isoSPI enabling a redundant communication path. The PCB, components and DuraClik connectors are optimized for low EMI susceptibility and emissions. The DC2192B can communicate to a PC by connecting a DC2792B dual master isoSPI together with DC2026  Linduino® One. The DC2026 must be loaded with the appropriate program (called a sketch) to control the battery stack monitor IC and receive data through a USB serial port. The DC2026C provides a standard SPI interface which can be translated to isoSPI and then connected to a DC2192B isoSPI port (J3/J4 connector). The DC2792B provides two SPI-isoSPI channels for reversible operation.

The LTC2666 is a family of 8-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 LTC2666 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

The DC2198A is a demonstration system for the LTC2980 16-channel I2C/SMBus/PMBus power system manager with EEPROM. The LTC2980 monitors and controls 16 power supply rails. The DC2198A demonstrates the ability of the LTC2980 to sequence, trim, margin, supervise, monitor, and log faults for sixteen power supply rails. Each power supply channel’s output voltage is monitored and the LTC2980 monitors its own internal die temperature.

The LTC2983 measures a wide variety of temperature sensors and digitally outputs the result, in ?C or ?F, with 0.1?C accuracy and 0.001?C resolution. The LTC2983 can measure the temperature of virtually all standard (type B, E, J, K, N, S, R, T) or custom thermocouples, automatically compensate for cold junction temperatures and linearize the results. The device can also measure temperature with standard 2-, 3- or 4-wire RTDs, thermistors and diodes. It has 20 reconfigurable analog inputs enabling many sensor connections and configuration options. The LTC2983 includes excitation current sources and fault detection circuitry appropriate for each type of temperature sensor.The LTC2983 allows direct interfacing to ground referenced sensors without the need for level shifters, negative supply voltages, or external amplifiers. All signals are buffered and simultaneously digitized with three high accuracy, 24-bit ?? ADCs, driven by an internal 10ppm/?C (maximum) reference.Applications Direct Thermocouple Measurements Direct RTD Measurements Direct Thermistor Measurements Custom Sensor Applications

Demonstration circuit 2220A is a 2A, bidirectional charger/regulator featuring the LTC3643, a bidirectional synchronous step-up charger and step-down converter. DC2220A implements backup by charging a storage capacitor up to approximately 40V in boost mode, when the input voltage is present. It discharges the storage capacitor in buck mode, providing a regulated load voltage 5V when the input is removed. Its wide voltage range, both in capacitor charger mode and in system backup mode, makes it well suited to a wide variety of applications. The ability of the LTC3643 to boost an input rail to a relatively high voltage of 40V, combined with the DC2220 option of adding external capacitor banks, makes this regulator an excellent choice for energy storage applications.

Demonstration circuit 2222A features the LTC®2500-32, LTC2508-32 and LTC2512-24 ADCs. The LTC2500-32, LTC2508-32 and LTC2512-24 are low power, low noise, high speed, 32-bit/24-bit SAR ADCs with an integrated configurable digital averaging filter that operate from a single 2.5V supply. The following text refers to the LTC2508-32 but applies to all parts, the only difference being sample rate and number of bits. The DC2222A demonstrates the DC and AC performance of the LTC2508-32 in conjunction with the DC590 or DC2026 QuikEval™ and DC890 PScope™ data collection boards. Use the DC590 or DC2026 to demonstrate DC performance such as peak-to-peak noise and DC linearity. Use the DC890 if precise sampling rates are required or to demonstrate AC performance such as SNR, THD, SINAD and SFDR. The DC2222A is intended to show recommended grounding, component placement and selection, routing and bypassing for this ADC.

The LTC2512-24 is a low noise, low power, high-performance 24-bit ADC with an integrated configurable digital filter. Operating from a single 2.5V supply, the LTC2512-24 features a fully differential input range up to ?VREF, with VREF ranging from 2.5V to 5.1V. The LTC2512-24 supports a wide common mode range from 0V to VREF simplifying analog signal conditioning requirements.The LTC2512-24 simultaneously provides two output codes: (1) a 24-bit digitally filtered high precision low noise code, and (2) a 22-bit no latency composite code. The configurable digital filter reduces measurement noise by lowpass filtering and down-sampling the stream of data from the SAR ADC core, giving the 24-bit filtered output code. The 22-bit composite code consists of a 14-bit code representing the differential voltage and an 8-bit code representing the common mode voltage. The 22-bit composite code is available each conversion cycle, with no cycle of latency.The digital filter can be easily configured for 4 different down-sampling factors by pin strapping. The configurations provide a dynamic range of 108dB at 400ksps and 117dB at 50ksps. The digital lowpass filter relaxes the requirements for analog anti-aliasing. Multiple LTC2512-24 devices can be easily synchronized using the SYNC pin.Applications Seismology Energy Exploration Automated Test Equipment (ATE) High-Accuracy Instrumentation

The LTC3875 is a dual output current mode synchronous step-down DC/DC controller that drives all N-channel power MOSFET stages. It employs a unique architecture that enhances the signal-to-noise ratio of the current sense signal, allowing the use of very low DC resistance (DCR) power inductors to maximize efficiency in high current applications. This feature also reduces the switching jitter commonly found in low DCR applications with current mode control.The LTC3875 features two high speed differential amplifiers which can be used to compensate for the voltage drop from the LTC3875 to the load. Its DCR temperature compensated adjustable over current trip points from 10mV to 30mV limits the maximum output current precisely over temperature.A unique thermal balancing function adjusts per phase current to minimize the thermal stress for multichip single output applications. The LTC3875 is available in the 40- lead 6mm ? 6mm (0.5mm pitch) and 40-lead 5mm ? 5mm (0.4mm pitch) QFN packages.APPLICATIONS Servers and Instruments Telecom Systems DC Power Distribution Systems

IO-Link®, the new bi-directional, digital, point-to-point communication standard (IEC 61131-9) offers a standardized mapping of advanced sensor and actuator features into the automation tool environment. This technology leverages small but powerful microprocessors being incorporated into sensors and actuators to improve control, parameterization and diagnostics. TEConcept has developed an 8-Port IO-Link master reference design that demonstrates a robust physical interface built using two LTC2874 IC's. The DC2228A will operate your favorite IO-Link device, controlled by Control Tool software (including IODD Interpreter) via an Ethernet connection. DC2228A operates either with an external 24V supply or, optionally, a Power over Ethernet (PoE) system. For the PoE case, it can be completely powered via an Ethernet connection to power sourcing equipment such as a PoE injector or PoE switch. We recommend a 90W LTPoE++ solution such as the Allnet ALL048900, which comes with its own power adapter.

Demonstration circuit 2234A is a synchronous sepic converter featuring the LT8711 multitopology switching controller. The LT8711 is a current mode PWM DC/DC controller with a dual input LDO to optimize gate driver efficiency. Ultralow 15μA quiescent current in low noise Burst Mode® operation achieves high efficiency at very light loads and helps extend the run-time in battery powered applications when in standby mode. The LT8711 switching frequency can be programmed either via oscillator resistor or external clock over a 100kHz to 750kHz range.

DC225A-H: Demo Board for the LTC1643A PCI-Bus Hot Swap Controller.

Demonstration circuit 2262 is a PoE Powered Device (PD) with a synchronous forward isolated power supply featuring the LT4276 and an ideal diode bridge controller (LT4321). The LT4276 provides IEEE802.3af (PoE, Type 1), IEEE802.3at (PoE+, Type 2), and LTPoE++ PD interfacing and power supply control. When the PD is connected to a PSE, the LT4276 turns on an external, low-resistance, high-power N-channel Hot Swap™ FET. The LT4276 controls a high-power, small-sized power supply that utilizes a highly efficient, synchronously rectified, active clamp forward topology. The LT4321 provides further efficiency improvement by minimizing bridge losses.

The LT4276 is a pin-for-pin compatible family of IEEE 802.3 and LTPoE++ Powered Device (PD) controllers. It includes an isolated switching regulator controller capable of synchronous operation in both forward and flyback topologies with auxiliary power support.The LT4276A employs the LTPoE++ classification scheme, receiving 38.7W, 52.7W, 70W or 90W of power at the PD RJ45 connector, and is backwards compatible with IEEE 802.3. The LT4276B is a fully 802.3at compliant, 25.5W Type 2 (PoE+) PD. The LT4276C is a fully 802.3af compliant, 13W Type 1 (PoE) PD.The LT4276 supports both forward and flyback power supply topologies, configurable for a wide range of PoE applications. The flyback topology supports No-Opto feedback. Auxiliary input voltage can be accurately sensed with just a resistor divider connected to the AUX pin.The LT4276 utilizes an external, low RDS(ON) N-channel MOSFET for the Hot Swap function, maximizing power delivery and efficiency, reducing heat dissipation, and easing the thermal design.Applications High Power Wireless Data Systems Outdoor Security Camera Equipment Commercial and Public Information Displays High Temperature Applications

Demonstration circuit 2268A-I is a high efficiency, high density, dual 8A, switch mode step-down power supply on a compact 1.5' × 1.2' PCB. It features the LTM4650A-1 μModule® regulator. The input voltage is from 4.5V to 16V. The output voltage is programmable from 0.6V to 5.3V. DC2268A-I can deliver up to 25A maximum in each channel. As explained in the data sheet, output current derating is necessary for certain VIN, VOUT, and thermal conditions. The board operates in continuous conduction mode in heavy load conditions. For high efficiency at low load currents, the resistor jumper (R1/R2) selects pulse-skipping mode for noise sensitive applications or Burst-Mode® in less noise sensitive applications. Two outputs can be connected in parallel for a single 50A output solution with optional jumper resistors. The board allows the user to program how its output ramps up and down through the TRACK/SS pin. Remote output voltage sensing is available for improved output voltage regulation at the load point. An optional input inductor L1 reduces the EMI noise for noise sensitive applications. DC2268A can be easily inserted to an edge connector for testing and debugging. These features and the availability of the LTM4650A-1 in a compact 16mm × 16mm × 4.41mm LGA package make it ideal for use in many high-density point-of-load regulation applications. The LTM4650A-1 data sheet must be read in conjunction with this demo manual for working on or modifying the DC2268A-I.

The LT3095 generates two low-noise bias supplies from a common input voltage ranging from 3V to 20V. Each channel includes a fixed frequency, peak current-mode step-up switching regulator and a low-noise, singleresistor- programmable 50mA linear regulator. The linear regulator?s high power supply ripple rejection (PSRR) combined with its low-noise performance results in less than 100?VP-P output ripple and noise.Each boost regulator adjusts its output voltage to 2V above the corresponding linear regulator?s output voltage, optimizing power dissipation, PSRR and transient response. This tracking scheme, along with internal boost regulator frequency compensation and integrated Schottky diodes, minimizes external component count and simplifies system design. Each linear regulator includes internal current limit and thermal limit protection circuitry.The LT3095 switching frequency is externally programmable with a single resistor from 450kHz to 2MHz. A SYNC pin allows synchronization to an external clock. The LT3095 is available in a thermally enhanced, low profile (0.75mm) 24-lead 3mm ? 5mm QFN package.Applications Noise-Sensitive USB Powered Applications Data Conversion, Industrial Supplies, RF Instrumentation Amplifiers

SmartMesh IP wireless sensor networks are self managing, low power internet protocol (IP) networks built from wireless nodes called motes. The LTC5800-IPM is the SmartMesh IP integrated circuit in the Eterna? family of IEEE 802.15.4e System-on-Chip (SoC) solutions, featuring a highly integrated, low power radio design as well as an ARM Cortex-M3 32-bit microprocessor running SmartMesh IP embedded networking software.With SmartMesh IP time-synchronized networks, all motes in the network may route, source or terminate data, while providing many years of battery powered operation. SmartMesh IP is a highly flexible network with proven reliability and low power performance in an easy-to-integrate platform.The LTC5800-IPM?s behavior in a SmartMesh IP network is determined by the choice of SmartMesh IP network software loaded: Wireless Mote, EManager, or Access Point Mote in a SmartMesh IP network. The SmartMesh IP software provided with the LTC5800-IPM is fully tested and validated, and is readily configured via a software Application Programming Interface. Once you have purchased SmartMesh IP products, the SmartMesh IP stack binaries may be downloaded via your myAnalog account.The pin signaling behavior of the LTC5800*WR-IPMA hardware is determined by the software loaded and is described in detail in the following product datasheets: LTC5800-IPM = LTC5800*WR-IPMA hardware + SmartMesh IP ?Mote? Software ? LTC5800-IPM Datasheet LTC5800-IPR = LTC5800*WR-IPMA hardware + SmartMesh IP EManager Software ? LTC5800-IPR Datasheet LTC5800-IPA = LTC5800*WR-IPMA hardware + SmartMesh IP Access Point Software ? LTC5800-IPA Datasheet Network Features Feature Benefit >99.999% Network Reliability Avoids communications dropouts common with other wireless networks NIST-certified AES-128 bit Encryption Data protected by end-to-end encryption, message integrity checking and device authentication Scalable Uses time-slotted channel-hopping protocol to avoid in-network collisions to maximize scale while minimizing power and latency-hungry transmission retries due to congestion Bidirectional Communications Ideal for both monitoring and control applications Up to 10 messages/second/node Time-slotted communications avoids contention. This data rate includes built-in margin for packet retries. Device Features Feature Benefit Industry-Leading Low Power Radio Technology ? 4.5mA to Receive a Packet ? 5.4mA to Transmit at 0dBm ? 9.7mA to Transmit at 8dBm Pre-engineered RF RF elements include an on-chip power amplifier and are pre-tuned for optimized performance, including temperature compensation, saving development time. Energy Harvesting Support Very low power design enables motes to be powered by a wide variety of energy harvesters. Click here to see a demonstration circuit of a SmartMesh IP mote powered by indoor light. Integrated Temperature Sensor Precise temperature sensor is integrated directly into the mote. ApplicationsSmartMesh IP is ideally suited for wireless Industrial Internet of Things (IoT) applications. Learn more about SmartMesh applications.?