Demonstration circuit 2767A features the LTC6754 highspeed rail-to-rail comparator in a QFN package with LVDS compatible outputs. The DC2767 input is AC-coupled for single-ended signal greater than 5MHz and up to 445MHz. The DC2767 outputs are AC-coupled 50Ω source impedance for driving directly the 50Ω inputs of a 1GHz or higher oscilloscope. The DC2767 has a supply connection for the LTC6754 rail-to-rail inputs and a separate supply connection for the QFN LTC6754 LVDS outputs. The LTC6754 includes 4.5mV of hysteresis to minimize instability. For the QFN package, a separate pin is available to set the hysteresis from 0mV (off) up to 40mV. The QFN version also features output latching to provide the ability to capture the state of the comparator. The DC2767 provides a connection to set the hysteresis or for output latching. LTC6754 is ideally suited for high frequency line driver and clock recovery circuits.

The LTC4124 is a simple high performance wireless Li-Ion charger with low battery disconnect. The pin-selectable charge current (up to 100mA) and charge voltage ensure versatility while minimizing the number of required external components.Wireless charging with the LTC4124 allows devices to be charged while sealed within enclosures and eliminates bulky connectors in space-constrained applications. Elimination of exposed conductive connectors also creates more robust devices while ensuring an effortless end-user experience.The LTC4124 includes an NTC input for safe temperature qualified charging and a battery disconnect feature that prevents damage to a battery due to over-discharging.The 2mm ? 2mm LQFN package and minimal number of external components make the LTC4124 well-suited for low power portable applications where small solution size is mandatory.Applications Medical Wireless Sensors Military Wearables High End Wireless Headsets Streaming Headsets with Bluetooth Connectivity Virtual Reality Headsets High End Remote Control IoT Devices

The LTC4332 is a point-to-point rugged SPI extender designed for operation in high noise industrial environments over long distances. Using a ?60V fault protected differential transceiver, the LTC4332 can transmit SPI data, including an interrupt signal, up to 2MHz over two twisted pair cables. The extended common mode range and high common mode rejection on the differential link provides tolerance to large ground differences between?nodes.The LTC4332 provides a control interface using a separate slave select for configuration and fault monitoring.Applications Industrial Control and Sensors Lighting and Sound System Control

Demonstration circuit 2824A-A is a single output buck converter with 4.5V to 20V input voltage range featuring the LTC7131-1, a 25A monolithic synchronous stepdown converter with a PMBus interface. The output voltage is adjustable from 0.4V to 4V and the converter can supply up to 25A of load current. The DC2824A-A powers up to default settings and produces power based on configuration resistors without the need for any serial bus communication, which allows easy evaluation of the DC/DC converter. To fully explore the extensive power system management features of the part, download the GUI software LTpowerPlay® onto your PC and use ADI’s USB-to-PMBus dongle DC1613A to connect to the board. LTpowerPlay allows users to monitor fault status and real-time telemetry of input and output voltages, input and output current, and internal IC die temperature. Programmable parameters include device address, output voltage, on/off control, and fault response to output overvoltage and output overcurrent. The LTC7131-1 data sheet gives a complete description of this part, its operation and application information and must be read in conjunction with this quick start guide for DC2824A-A.

The LTM2810 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 (LTM2810-S) and I2C (LTM2810-I), master mode only, specifications.The module includes an integrated transformer driver on the logic side and an LDO on the isolated side to regulate the rectified transformer output. The LDO output is nominally 5V but may be overdriven.Coupled inductors provide 7500VRMS of isolation between the input and output logic interface. This device is ideal for systems with different ground potentials, allowing uninterrupted communication through large common mode transients faster than 50kV/?s.APPLICATIONS EV/HEV Systems Industrial and Metering Systems Test and Measurement Equipment Medical Equipment

Demonstration Circuit 2836A is a dual-output PolyPhase® DC/DC synchronous step-down regulator with 4V to 20V input range featuring LT7182S. Each output can supply 6A continuous/9A maximum transient load current. LT7182S is a dual 6A monolithic step-down regulator utilizing second-generation Silent Switcher® technology to minimize EMI and reduce PCB layout sensitivity. It also integrates digital power system management function allowing for programmability and telemetry with a PMBus/I2C compliant serial interface. Please see LT7182S data sheet for more detailed information. The demonstration circuit 2836A runs at 1MHz to minimize solution size. The peak efficiency at 12V input is 83.2% for 1.2V rail and 91.1% for 3.3V rail. The IC temperature rise is 70°C when both channels run at full load, 6A each, at 1MHz. The demo board has EMI filters installed for both channels. The conducted and radiated EMI performances of the board (with EMI filters) are shown in Figure 2 of the demo manual. The red lines in Figure 2 are CISPR25 CLASS 5 limit. DC2836A powers up to default settings and produces power based on configuration resistors without the need for any serial bus communication. This allows easy evaluation of the DC/DC converter. To fully explore the power system management features of the part, download the GUI software LTpowerPlay® onto your PC and use ADI’s I2C/SMBus/PMBus dongle DC1613A to connect to the board. LTpowerPlay allows the user to reconfigure the part on the fly and store the configuration in EEPROM, view telemetry of voltage, current, temperature and fault status. GUI Download The software can be downloaded from: LTpowerPlay  The LT7182S data sheet gives a complete description of the part, operation and application information. The data sheet must be read in conjunction with the demo manual for DC2836A. For more details and instructions of LTpowerPlay, please refer to LTpowerPlay GUI for LT7182S Quick Start Guide.

Demonstration circuit 2838A features the LT8365 in a boost configuration. It operates with a switching frequency of 400kHz and is designed to convert a 9V to 30V source to 250V, with 10mA output current. The demo board contains an optional third charge pump stage for applications requiring higher output voltages. If needed, remove R14 and install optional components. Output voltage sensing connections remain the same. The LT8365 can be used for different topologies with input voltages up to 60V. However, component selection in this demo circuit restricts the input voltage to 30V. The demo board contains a selectable jumper, JP1, to aid in the selection of the desired sync pin mode of operation. The default setting is Burst Mode® operation. This layout is optimized for good EMI performance and small solution size. Input and output filters are necessary for CISPR 25 Class 5 emissions. Radiated emissions plots are included in this manual. The data sheet gives a complete description of the device, operation and application information. The data sheet must be read in conjunction with this demo manual.

Demonstration Circuit 2841A is a 42V, 15A synchronous step-down Silent Switcher 2 with spread spectrum frequency modulation featuring the LT8648S. The demo board is designed for 5V output from a 5.7V to 42V input. The wide input range allows a variety of input sources, such as automotive batteries and industrial supplies. The LT8648S is a compact, ultralow emission, high efficiency, and high speed synchronous monolithic stepdown switching regulator. The integrated bypass capacitors optimize the fast current loops and make it easier to minimize EMI emissions by reducing layout sensitivity. Selectable spread spectrum mode further improves EMI performance, making it perfect solution to the noise sensitive applications.  Peak current mode control with minimum on-time of as small as 25ns allows high step-down conversion even at high frequency. The LT8648S switching frequency can be programmed either via oscillator resistor or external clock over a 200kHz to 2.2MHz range. The default frequency of demo circuit 2841A is 400kHz. The SYNC/MODE pin on the demo board DC2841A is grounded (JP1 at BURST position) by default for low ripple Burst Mode® operation. It can be configured into different operation modes through JP1 and SYNC terminal (Table 1). Figure 1 shows the efficiency of the circuit at 12V input and 24V input in force continuous mode without spread spectrum. To get accurate efficiency measurement, measure the input voltage at the VIN SENSE terminal and measure the output voltage at the VO SENSE terminal.  Figure  2 shows the LT8648S temperature rising on DC2841A demo board under different load conditions. The LT8648S is assembled in a 7mm × 4mm LQFN package with exposed pads for low thermal resistance. The rated maximum load current is 15A, while derating is necessary for certain input voltage and thermal conditions. The demo board has an EMI filter installed. The EMI performance of the board is shown on Figure 3. The red line in Radiated EMI Performance is CISPR25 Class 5 peak limit. The figure shows that the circuit passes the test with a wide margin. To achieve EMI performance as shown in Figure 3, the input EMI filter is required and the input voltage should be applied at VIN_EMI terminal, and the test setup can be referred to the CISPR25 standards. If the input is applied to VIN terminal, the EMI filter is bypassed.  The LT8648S data sheet gives a complete description of the part, operation and application information. The data sheet must be read in conjunction with this demo manual for DC2841A. The layout recommendations for low EMI operation and maximum thermal performance are available in the data sheet section Low EMI PCB Layout and Thermal Considerations and Peak Output Current. Contact ADI applications engineer for support.

Demonstration circuit DC2846A is a DC/DC synchronous boost converter featuring the LTC7804 (MSE package), a spread spectrum or constant frequency current mode synchronous boost controller. The DC2846A generates a 24V output voltage and provides up to 6A of output current. The 500kHz constant switching frequency operation results in a small and efficient circuit. The main features of this board include: Wide input voltage range: from 6V to 24V Relatively high output power, up to 150W Extremely low quiescent current, it’s 15µA at sleep mode and as low as 1µA at shutdown Onboard low power bias supply Ability to select spread spectrum or fixed frequency Pulse-skipping mode, forced continuous operation or low ripple Burst Mode® operation at light loads Synchronization with external clock If VIN > VOUT, the DC2846A eliminates the usual boost topology losses by keeping the top MOSFET on continuously. The converter provides high output voltage accuracy (typically ±2%) over a wide load range with no minimum load requirement. The DC2846A supports two ways of biasing step-up controllers: directly from the input voltage or output rail. The third possibility is connecting voltage source to EXTVCC terminal. The DC2846A extremely wide switching frequency range from 100kHz to 3MHz. It can be synchronized to the external clock anywhere inside this range. The spread spectrum operation is used for reducing the peak radiated and conducted noise to simplify compliance with electromagnetic interference (EMI) standards. The DC2846A has small circuit footprint. It is a high performance and cost-effective solution for telecom, automotive and Power over Ethernet applications.

Demonstration circuit 2879A is a high efficiency, high power density hybrid converter. It can deliver 12V/25A with an input voltage from 36V to 60V (up to 65V during transients). This demo board features the LTM4660, which uses an architecture that merges soft-switching switched capacitor topology with a traditional step-down converter to provide superior efficiency compared to the traditional switching architectures. It offers a high efficiency/high density and cost effective solution for nonisolated intermediate bus applications in power distribution, datacom and telecom. Due to its current mode control architecture, multiple LTM4660s can be operated in a parallel, multiphase configuration with excellent current sharing and low output voltage ripple to enable much higher power applications. Other benefits include low EMI emissions due to a soft-switched front end and reduced MOSFET stress. The LTM4660 design eliminates the inrush current typically associated with switched capacitor circuits by pre-balancing the capacitors on start-up. The LTM4660 also monitors system voltage, current and temperature for faults. It stops switching and pulls the FAULT pin low when a fault condition occurs. An onboard timer can be set for appropriate restart/retry times. Additional features include ±1.5% output voltage accuracy over temperature, a clock output for multiphase operation, a power good output signal, short-circuit protection, monotonic output voltage start-up, optional external reference, undervoltage lockout and internal charge balance circuitry. The LTM4660 data sheet must be used in conjunction with this demo board manual.