The ADM2861E, ADM2863E, ADM2865E, and ADM2867E are 5.7 kV rms signal and power isolated RS-485 transceivers. These devices are designed for balanced transmission lines and comply with ANSI/TIA/EIA-485-A-98 and ISO 8482:1987(E). The devices pass radiated emissions testing to the EN 55032 Class B standard with margin on a 2-layer printed circuit board (PCB) using two small external 0402 ferrites on isolated power and ground pins. The device features an integrated, low electromagnetic interference (EMI), isolated dc-to-dc converter, which eliminates the need for an external isolated power supply. The isolation barrier provides immunity to system level electromagnetic compatibility (EMC) standards. The family of isolator devices features ?12 kV contact and ?15 kV air IEC61000-4-2 ESD protection on the RS-485 A, B, Y, and Z pins. The devices also features cable invert pins, allowing the user to quickly correct reversed cable connection on the A, B, Y, and Z bus pins while maintaining full receiver fail-safe performance.Slew rate limited versions are available, which are optimized for low speed over long cable runs, and have a maximum data rate of 500 kbps. Half duplex and full duplex variants are available. The full duplex generics allow independent cable inversion of the driver and receiver for additional flexibility.Applications Heating, ventilation, and air conditioning (HVAC) networks Industrial field buses Building automation Utility networks Energy meters

The ADM2914 is a quad voltage supervisory IC ideally suitedfor monitoring multiple rails in a wide range of applications.Each monitored rail has two dedicated input pins, VHx and VLx, which allow each rail to be monitored for both overvoltage (OV) and undervoltage (UV) conditions. A common active lowundervoltage (UV) and overvoltage (OV) pin is shared by each of the monitored voltage rails.The ADM2914 includes a 1 V buffered reference output, REF,that acts as an offset when monitoring a negative voltage. Thethree-state SEL pin determines the polarity of the third andfourth inputs, that is, it configures the device to monitorpositive or negative supplies.The device incorporates an internal shunt regulator that enablesthe device to be used in higher voltage systems. This featurerequires a resistor to be placed between the main supply rail andthe VCC pin to limit the current flow into the VCC pin to no greater than 10 mA. The ADM2914 uses the internal shuntregulator to regulate VCC if the supply line exceeds the absolute maximum ratings.The ADM2914 is available in two models. The ADM2914-1offers a latching overvoltage output that can be cleared by toggling the LATCH input pin. The ADM2914-2 has a disablepin that can override and disable both the OV and UVoutputsignals.The ADM2914 is available in a 16-lead QSOP package. Thedevice operates over the extended temperature range of ?40?Cto +125?C.Applications Server supply monitoring FPGA/DSP core and I/O voltage monitoring Telecommunications equipment Medical equipment

The ADM3054 is a 5 kV rms signal isolated controller areanetwork (CAN) physical layer transceiver. The ADM3054complies with the ISO 11898 standard.The device employs Analog Devices, Inc., iCoupler? technologyto combine a 3-channel isolator and a CAN transceiver into asingle package. The logic side of the device is powered with asingle 3.3 V or 5 V supply on VDD1 and the bus side uses a single5 V supply on VDD2 only. Loss of power on the bus side (VDD2)can be detected by an integrated VDD2SENSE signal.The ADM3054 creates an isolated interface between the CANprotocol controller and the physical layer bus. It is capable ofrunning at data rates of up to 1 Mbps.The device has integrated protection on the bus pins, CANHand CANL against shorts to power/ground in 24 V systems.The device has current-limiting and thermal shutdown featuresto protect against output short circuits and situations where thebus might be shorted to ground or power terminals. The part isfully specified over the industrial temperature range and isavailable in a 16-lead, wide-body SOIC package.Applications CAN data buses Industrial field networks

The ADM3095E is a 3.0 V to 5.5 V, 2.5 Mbps, RS-485 transceiverthat features up to ?42 V ac/dc peak bus overvoltage faultprotection on the RS-485 bus pins. This device is designed towithstand overvoltage faults, such as short circuits directly to powersupplies, and overvoltage faults, such as ?24 V ac suppliesconnected in error to the RS-485 A and B bus pins. TheADM3095E is an RS-485 transceiver that integrates IEC 61000-4-5Level 4 surge protection, allowing up to ?4 kV protection onthe RS-485 bus pins. The device has IEC 61000-4-4 Level 4electrical fast transient (EFT) protection up to ?2 kV, andIEC 61000-4-2 Level 4 electrostatic discharge (ESD) protectionon the bus pins, allowing the device to withstand up to ?15 kVon the transceiver interface pins without latch-up or damage.This device has an extended common-mode input voltage rangeof ?25 V to improve data communication reliability in noisyenvironments over long cable lengths where ground loop voltagesare possible. The combination of extended common-mode inputvoltage range, overvoltage fault protection, surge protection, EFTprotection, and ESD protection make the ADM3095E acompletely integrated electromagnetic compatibility (EMC)protected RS-485 transceiver.The ADM3095E also features a logic supply pin, VIO, for a flexibledigital interface, operational to voltages as low as 1.62 V. TheADM3095E is PROFIBUS? compliant with a high driverdifferential output voltage, VOD, of 2.1 V minimum at power supplyvoltages greater than 4.5 V. The device is fully characterized overextended operating temperature ranges, with options of ?40?C to+125?C, and is available in a 16-lead, narrow body SOIC package..Applications Heating ventilation and air conditioning (HVAC) networks Industrial field buses Building automation Utility networks

The ADM3252E is a high speed, 2.5 kV fully isolated, dual-channel RS-232/V.28 transceiver device that is operational from a single 3.3 V or 5 V power supply. Because of high ESD protection on the RIN1, RIN2, TOUT1, and TOUT2?pins, the ADM3252E is ideally suited for operation in electrically harsh environments or where RS-232 cables are frequently plugged and unplugged.The ADM3252E provides four independent isolation channels using the integrated and isolated power of?isoPower?. There is no requirement to use a separate isolated dc-to-dc converter. Chip scale transformer iCoupler? technology from Analog Devices, Inc., is used for both the isolation of the logic signals and the integrated dc-to-dc converter. The result is a total isolation solution.isoPower? technology in the ADM3252E uses high frequency switching elements to transfer power through its transformer. Special care must be taken during printed circuit board (PCB) layout to meet emissions standards. Refer to Application Note AN-0971, Recommendations for Control of Radiated Emissions with isoPower Devices, for details on board layout considerations.The ADM3252E conforms to the EIA/TIA-232E and ITU-T V.28 specifications and operates at data rates of up to 460 kbps. Four external 0.1 ?F charge pump capacitors are used for the voltage doubler/inverter, permitting operation from a single 3.3 V or 5 V supply. The ADM3252E is available in a 44-ball, chip scale package ball grid array (CSP_BGA) and is specified over the ?40?C to +85?C temperature range.APPLICATIONS Isolated RS-232 interface High noise data communications Industrial communications Industrial/telecommunications diagnostic ports Medical equipment

The LTC7851/LTC7851-1 are quad output multiphase synchronous step-down switching regulator controllers that employ a constant frequency voltage mode architecture. They maintain excellent current balance between channels when paralleled with their internal current sharing loop. Lossless DCR or a low value RSENSE is used for output current sensing. Multiple LTC7851/LTC7851-1 devices can be used for high phase count operation.A very low offset, high bandwidth error amplifier, combined with remote output voltage sensing, provides excellent transient response and output regulation. The LTC7851/ LTC7851-1 operates with a VCC supply voltage from 3V to 5.5V and is designed for step-down conversion with VIN from 3V to 27V and produces an output voltage from 0.6V to VCC ? 0.5V.The LTC7851-1 is identical to the LTC7851 except it has a lower current sense amplifier gain, making it ideal for DrMOS devices with internal current sense.Applications High Current Distributed Power Systems DSP, FPGA and ASIC Supplies Datacom, Telecom and Computing Systems

Demonstration circuit DC2380A features the LTC7851, a high performance 4-phase step-down, voltage mode controller. The DC2380A-B operates with a 7V to 14V input supply voltage and provides the follow two high current outputs: 1.8V @ 60A and 1.2V @ 60A. The LTC7851’s integrated current share circuit provides highly accurate current sharing. Since the LTC7851 does not include MOSFET drivers, its PWM outputs drive external DrMOS devices.

Demonstration circuit DC2380A features the LTC7851, a high performance 4-phase step-down, voltage mode controller. The DC2380A-C operates with a 7V to 14V input supply voltage and provides a single 1.2V @ 120A output. The LTC7851’s integrated current share circuit provides highly accurate current sharing. Since the LTC7851 does not include MOSFET drivers, its PWM outputs drive external DrMOS devices.

The LTM8071 is a 60VIN, 5A (continuous) step-down Silent Switcher ?Module? (power module) regulator. The Silent Switcher architecture minimizes EMI while delivering high efficiency at frequencies up to 2.2MHz. Included in the package are the switching controller, power switches, inductor, and all support components. Operating over an input voltage range of 3.6V to 60V, the LTM8071 supports an output voltage range of 0.97V to 15V and a switching frequency range of 200kHz to 2.2MHz, each set by a single resistor. Only the input and output filter capacitors are needed to finish the design.The LTM8071 is packaged in a compact over-molded ball grid array (BGA) package suitable for automated assembly by standard surface mount equipment. The LTM8071 is available with SnPb (BGA) or RoHS compliant terminal finish.APPLICATIONS Test and Measurement Equipment Aviation Distributed Supply Regulation Industrial Supplies Wall Transformer Regulation

The LTM8073 is a 60VIN, 3A (continuous) or 5A (peak) step-down Silent Switcher ?Module? (power module) regulator. Included in the package are the switching controller, power switches, inductor, and all support components. Operating over an input voltage range of 3.4V to 60V, the LTM8073 supports an output voltage range of 0.8V to 15V and a switching frequency range of 200kHz to 3MHz, each set by a single resistor. Only the input and output filter capacitors are needed to finish the design.The low profile package enables utilization of unused space on the bottom of PC boards for high density point of load regulation. The LTM8073 is packaged in a thermally enhanced, compact over-molded ball grid array (BGA) package suitable for automated assembly by standard surface mount equipment. The LTM8073 is RoHS compliant.Applications Power for Portable Products Distributed Supply Regulation Industrial Supplies Wall Transformer Regulation