The AD5280 / AD5282 are single-channel and dual-channel, 256-position, digitally controlled variable resistors (VRs). The devices perform the same electronic adjustment function as a potentiometer, trimmer, or variable resistor. Each VR offers a completely programmable value of resistance between the A terminal and the wiper or the B terminal and the wiper. The fixed A-to-B terminal resistance of 20 kΩ, 50 kΩ, or 200 kΩ has a 1% channel-to-channel matching tolerance. The nominal temperature coefficient of both parts is 30 parts per million/ degrees centigrade (ppm/°C). Another key feature is that the parts can operate up to +15 V or ±5 V.Wiper position programming defaults to midscale at system power-on. When powered, the VR wiper position is programmed by an I2C-compatible, 2-wire serial data interface. The AD5280 / AD5282 feature sleep mode programmability. This allows any level of preset in power-up and is an alternative to a costly EEPROM solution. Both parts have additional programmable logic outputs that enable users to drive digital loads, logic gates, LED drivers, and analog switches in their system.The AD5280/AD5282 are available in thin, surface-mounted 14-lead TSSOP and 16-lead TSSOP. All parts are guaranteed to operate over the extended industrial temperature range of −40°C to +85°C. For 3-wire SPI-compatible interface applications, see the AD5260 / AD5262 product information on www.analog.comAPPLICATIONS Multimedia, video, and audio Communications Mechanical potentiometer replacement Instrumentation: gain, offset adjustment Programmable voltage source Programmable current source Line impedance matching

The AD5280 / AD5282 are single-channel and dual-channel, 256-position, digitally controlled variable resistors (VRs). The devices perform the same electronic adjustment function as a potentiometer, trimmer, or variable resistor. Each VR offers a completely programmable value of resistance between the A terminal and the wiper or the B terminal and the wiper. The fixed A-to-B terminal resistance of 20 kΩ, 50 kΩ, or 200 kΩ has a 1% channel-to-channel matching tolerance. The nominal temperature coefficient of both parts is 30 parts per million/ degrees centigrade (ppm/°C). Another key feature is that the parts can operate up to +15 V or ±5 V.Wiper position programming defaults to midscale at system power-on. When powered, the VR wiper position is programmed by an I2C-compatible, 2-wire serial data interface. The AD5280 / AD5282 feature sleep mode programmability. This allows any level of preset in power-up and is an alternative to a costly EEPROM solution. Both parts have additional programmable logic outputs that enable users to drive digital loads, logic gates, LED drivers, and analog switches in their system.The AD5280/AD5282 are available in thin, surface-mounted 14-lead TSSOP and 16-lead TSSOP. All parts are guaranteed to operate over the extended industrial temperature range of −40°C to +85°C. For 3-wire SPI-compatible interface applications, see the AD5260 / AD5262 product information on www.analog.comAPPLICATIONS Multimedia, video, and audio Communications Mechanical potentiometer replacement Instrumentation: gain, offset adjustment Programmable voltage source Programmable current source Line impedance matching

The SSM2375 is a fully integrated, high efficiency, Class-D audioamplifier. It is designed to maximize performance for mobilephone applications. The application circuit requires a minimumof external components and operates from a single 2.5 V to 5.5 Vsupply. It is capable of delivering 3 W of continuous output powerwith 100 dB.Spread-spectrum pulse density modulation (PDM) is used toprovide lower EMI-radiated emissions compared with otherClass-D architectures. The inherent randomized nature ofspread-spectrum PDM eliminates the clock intermodulation(beating effect) of several amplifiers in close proximity.The SSM2375 includes an optional modulation select pin(ultralow EMI emissions mode) that significantly reduces theradiated emissions at the Class-D outputs, particularly above100 MHz. In ultralow EMI emissions mode, the SSM2375can pass FCC Class B radiated emission testing with 50 cm,unshielded speaker cable without any external filtering.The device also includes a highly flexible gain select pin thatallows the user to select a gain of 0 dB, 3 dB, 6 dB, 9 dB, or12 dB. The gain selection feature improves gain matchingbetween multiple SSM2375 devices within a single applicationas compared to using external resistors to set the gain.The SSM2375 has a micropower shutdown mode with a typicalshutdown current of 20 nA. Shutdown is enabled by applyinga logic low to the SD pin.The device also includes pop-and-click suppression circuitry.This suppression circuitry minimizes voltage glitches at theoutput during turn-on and turn-off, reducing audible noiseon activation and deactivation.Other features that simplify system-level integration of theSSM2375 include input low-pass filtering to suppress out-of-bandDAC noise interference to the PDM modulator and fixed-inputimpedance to simplify component selection across multipleplatform production builds.The SSM2375 is specified over the industrial temperature rangeof −40°C to +85°C. It has built-in thermal shutdown and outputshort-circuit protection. It is available in a halide-free, 9-ball,1.5 mm × 1.5 mm wafer level chip scale package (WLCSP).Applications Mobile phones MP3 players Portable electronics

The SSM2380 is a fully integrated, high efficiency, stereo, Class-D audio amplifier. It is designed to maximize performance for mobile phone applications. The application circuit requires a minimum of external components and operates from a single 2.5 V to 5.5 V supply. It is capable of delivering 2 W of continuous output power with 100 dB.Spread-spectrum pulse density modulation is used to provide lower EMI-radiated emissions compared with other Class-D architectures. An added benefit of spread-spectrum Σ-Δ modu-lation is that no synchronization (SYNC) is needed when using multiple Class-D amplifiers. For applications that require long speaker cables (>10 cm), the SSM2380 includes a user-selectable ultralow EMI emissions mode that eliminates the need for EMI filters at the Class-D outputs.The SSM2380 has a micropower shutdown mode with a typicalshutdown current of 20 nA. Shutdown is enabled by applying alogic low to the SD pin or through an optional independent channel soft shutdown via I2C.The device also includes pop-and-click suppression circuitry. Thissuppression circuitry minimizes voltage glitches at the outputduring turn-on and turn-off, reducing audible noise on activationand deactivation.The fully differential inputs of the SSM2380 provides excellentrejection of common-mode noise on the input. Input couplingcapacitors can be omitted if the dc input common-mode voltage isapproximately VDD/2.The SSM2380 is specified over the commercial temperature range(−40°C to +85°C). It has built-in thermal shutdown and outputshort-circuit protection. It is available in a 16-ball, 2 mm × 2 mmwafer level chip scale package (WLCSP).Applications Mobile phones MP3 players Portable electronics

The AD8191 is a DVI/HDMI switch featuring equalized TMDS inputs and pre-emphasized TMDS outputs, ideal for systems with long cable runs. Outputs can be set to a high impedance state to reduce the power dissipation and/or allow the construction of larger arrays using the wire-OR technique.Flexible channel bundling modes allow the AD8191 to be configured as a 4:1 single DVI/HDMI link switch, a dual 8:1 TMDS channel switch, or a single 16:1 TMDS channel switch.The AD8191 is provided in a 100-lead LQFP lead-free packagespecified to operate over the 0°C to 70°C temperature range.PRODUCT HIGHLIGHTS Supports data rates up to 1.65Gbps, enabling UXGA (1600x1200) DVI resolutions and 1080p HDMI formats. Input cable equalizer enables use of long cables at the input (more than 20 meters of 24 AWG cable at 1080p). Auxiliary switch allows routing of DDC signals for a single-chip, fully HDMI 1.2a receive-compliant solution.APPLICATIONS Multi-input displays and projectors A/V receivers Set-top boxes Advanced television (HDTV)

The ADuM131x are 3-channel digital isolators based on Analog Devices, Inc., iCoupler® technology. Combining high speed CMOS and monolithic air core transformer technology, these isolation components provide outstanding performance characteristics superior to alternatives such as optocoupler devices.By avoiding the use of LEDs and photodiodes, iCoupler devices remove the design difficulties commonly associated with optocouplers. The typical optocoupler concerns regarding uncertain current transfer ratios, maximum operating temperature, and lifetime effects are eliminated with the simple iCoupler digital interfaces and stable performance characteristics. The need for external drivers and other discrete components is eliminated with these iCoupler products. Furthermore, iCoupler devices consume one-tenth to one-sixth the power of optocouplers at comparable signal data rates. The iCoupler also offers higher channel densities and more options for channel directionality.The ADuM131x isolators provide three independent isolation channels in a variety of channel configurations and data rates up to 10 Mbps (see the Ordering Guide). All models operate with the supply voltage on either side ranging from 2.7 V to 5.5 V, providing compatibility with lower voltage systems as well as enabling voltage translation functionality across the isolation barrier. All products allow the user to predetermine the default output state in the absence of input VDD1 power with a simple control pin. Unlike other optocoupler alternatives, the ADuM131x isolators have a patented refresh feature that ensures dc correctness in the absence of input logic transitions and during power-up/ power-down conditions.APPLICATIONS General-purpose multichannel isolation SPI interface/data converter isolation RS-232/RS-422/RS-485 transceiver Industrial field bus isolation

The ADuM1410 / ADuM1411 / ADuM1412 are four-channel digital isolators based on Analog Devices, Inc. iCoupler® technology. Combining high speed CMOS and monolithic air core transformer technologies, these isolation components provide outstanding performance characteristics superior to alternatives such as optocoupler devices.By avoiding the use of LEDs and photodiodes, iCoupler devices remove the design difficulties commonly associated with optocouplers. The usual concerns that arise with optocouplers, such as uncertain current transfer ratios, nonlinear transfer functions, and temperature and lifetime effects, are eliminated with the simple iCoupler digital interfaces and stable performance characteristics. The need for external drivers and other discrete components is eliminated with these iCoupler products. Furthermore, iCoupler devices consume one-tenth to one-sixth the power of optocouplers at comparable signal data rates.The ADuM1410/ADuM1411/ADuM1412 isolators provide four independent isolation channels in a variety of channel configurations and data rates (see the Ordering Guide) up to 10 Mbps. All models operate with the supply voltage on either side ranging from 2.7 V to 5.5 V, providing compatibility with lower voltage systems as well as enabling voltage translation functionality across the isolation barrier. All products also have a default output control pin. This allows the user to define the logic state the outputs are to adopt in the absence of the input power. Unlike other optocoupler alternatives, the ADuM1410/ADuM1411/ ADuM1412 isolators have a patented refresh feature that ensures dc correctness in the absence of input logic transitions and during power-up/power-down conditions.APPLICATIONS General-purpose multichannel isolation SPI interface/data converter isolation RS-232/RS-422/RS-485 transceivers Industrial field bus isolation

The ADuM3400/ADuM3401/ADuM3402 are 4-channel digitalisolators based on the Analog Devices, Inc., iCoupler® technology.Combining high speed CMOS and monolithic air coretransformer technology, these isolation components provideoutstanding performance characteristics superior to alternativessuch as optocoupler devices.iCoupler devices remove the design difficulties commonlyassociated with optocouplers. Typical optocoupler concernsregarding uncertain current transfer ratios, nonlinear transferfunctions, and temperature and lifetime effects are eliminatedwith the simple iCoupler digital interfaces and stable performancecharacteristics. The need for external drivers and other discretecomponents is eliminated with these iCoupler products. Furthermore,iCoupler devices consume one-tenth to one-sixth thepower of optocouplers at comparable signal data rates.The isolators provide four independent isolation channels in avariety of channel configurations and data rates (see theOrdering Guide). All models operate with the supply voltage oneither side ranging from 2.7 V to 5.5 V, providing compatibilitywith lower voltage systems as well as enabling a voltagetranslation functionality across the isolation barrier. Theisolators have a patented refresh feature that ensures dc correctnessin the absence of input logic transitions and during powerup/power-downconditions.In comparison to the ADuM1400/ADuM1401/ADuM1402isolators, the ADuM3400/ADuM3401/ADuM3402 isolatorscontain various circuit and layout changes to provide increasedcapability relative to system-level IEC 61000-4-x testing (ESD/burst/surge). The precise capability in these tests for either set ofisolators is strongly determined by the design and layout of theuser’s board or module. For more information, see the AN-793 application note, ESD/Latch-Up Considerations with iCoupler Isolation Products.Applications General-purpose multichannel isolation SPI/data converter isolation RS-232/RS-422/RS-485 transceivers Industrial field bus isolation

The ADuM3400/ADuM3401/ADuM3402 are 4-channel digitalisolators based on the Analog Devices, Inc., iCoupler® technology.Combining high speed CMOS and monolithic air coretransformer technology, these isolation components provideoutstanding performance characteristics superior to alternativessuch as optocoupler devices.iCoupler devices remove the design difficulties commonlyassociated with optocouplers. Typical optocoupler concernsregarding uncertain current transfer ratios, nonlinear transferfunctions, and temperature and lifetime effects are eliminatedwith the simple iCoupler digital interfaces and stable performancecharacteristics. The need for external drivers and other discretecomponents is eliminated with these iCoupler products. Furthermore,iCoupler devices consume one-tenth to one-sixth thepower of optocouplers at comparable signal data rates.The isolators provide four independent isolation channels in avariety of channel configurations and data rates (see theOrdering Guide). All models operate with the supply voltage oneither side ranging from 2.7 V to 5.5 V, providing compatibilitywith lower voltage systems as well as enabling a voltagetranslation functionality across the isolation barrier. Theisolators have a patented refresh feature that ensures dc correctnessin the absence of input logic transitions and during powerup/power-downconditions.In comparison to the ADuM1400/ADuM1401/ADuM1402isolators, the ADuM3400/ADuM3401/ADuM3402 isolatorscontain various circuit and layout changes to provide increasedcapability relative to system-level IEC 61000-4-x testing (ESD/burst/surge). The precise capability in these tests for either set ofisolators is strongly determined by the design and layout of theuser’s board or module. For more information, see the AN-793 application note, ESD/Latch-Up Considerations with iCoupler Isolation Products.Applications General-purpose multichannel isolation SPI/data converter isolation RS-232/RS-422/RS-485 transceivers Industrial field bus isolation

The ADuM520x are dual channel digital isolators with isoPower, an integrated, isolated dc-to-dc converter. Based onthe Analog Devices, Inc., iCoupler® technology, the dc-to-dcconverter provides up to 500 mW of regulated, isolated powerwith 5.0 V input and 5.0 V output voltage, or 200 mW of power with 3.3 V input and 3.3 V output voltage. This eliminates the need for a separate isolated dc-to-dc converter in low power isolated designs. The Analog Devices chip scale transformer iCoupler technology is used for the isolation of the logic signals as well as for the dc-to-dc converter. The result is a small form factor, total isolation solution.ADuM520x units may be used in combination with ADuM5401, ADuM5402, ADuM5403, ADuM5404 and ADuM5000 with isoPower® to achieve higher output power levels and greater channel counts (see the Increasing Available Power section).The ADuM520x isolators provide two independent isolationchannels in a variety of channel configurations and data rates(see the Ordering Guide for options).isoPower uses high frequency switching elements to transfer power through its transformer. Special care must be taken during printed circuit board (PCB) layout to meet emissionsstandards. Refer to the AN-0971 application note for details on board layout recommendations.APPLICATIONS RS-232/RS-422/RS-485 transceiver Industrial field bus isolation Power supply startups and gate drives Isolated sensor interfaces Industrial PLCs