The ADGM1304 is a wideband, single-pole, four-throw (SP4T) switch, fabricated using Analog Devices, Inc., microelectro-mechanical system (MEMS) switch technology. This technology enables a small form factor, wide RF bandwidth, highly linear, low insertion loss switch that is operational from 0 Hz/dc to 14 GHz, making the ADGM1304 an ideal solution for a wide range of RF and precision equipment switching needs.An integrated driver chip generates a high voltage to electrostatically actuate a switch that can be controlled by a parallel interface and a serial peripheral interface (SPI). All four switches are independently controllable.The device is packaged in a 24-lead, 5 mm ? 4 mm ? 0.95 mm, lead frame chip-scale package (LFCSP).To ensure optimum operation of the ADGM1304, the Critical Operational Requirements section must be followed exactly.The on resistance (RON) performance of the ADGM1304 is affected by device to device variation, channel to channel variation, cycle actuations, settling time post turn on, bias voltage, and temperature changes.APPLICATIONS Relay replacements Automatic test equipment: RF/high speed digital and mixed signals Load and probe boards: RF/high speed digital and mixed signals RF test instrumentation Reconfigurable filters and attenuators High performance RF switching

The ADGS1212 contains four independent single-pole/single-throw(SPST) switches. A serial peripheral interface (SPI)controls the switches. The SPI interface has robust error detectionfeatures such as cyclic redundancy check (CRC) error detection,invalid read/write address detection, and SCLK count errordetection.It is possible to daisy-chain multiple ADGS1212 devices together.Daisy-chain mode enables the configuration of multiple deviceswith minimal digital lines. The ADGS1212 can also operate inburst mode to decrease the time between SPI commands.iCMOS construction ensures ultralow power dissipation, makingthe device ideal for portable and battery-powered instruments.Each switch conducts equally well in both directions when on,and each switch has an input signal range that extends to thesupplies.In the off condition, signal levels up to the supplies are blocked.The ultralow capacitance and charge injection of these switchesmake them ideal solutions for data acquisition and sample-andholdapplications where low glitch and fast settling are required.Fast switching speed coupled with high signal bandwidth makethe device suitable for video signal switching.Multifunction pin names may be referenced by their relevantfunction only.Product Highlights SPI interface removes the need for parallel conversion, logic traces, and reduces the general-purpose input/output (GPIO) channel count. Daisy-chain mode removes additional logic traces when multiple devices are used. CRC error detection, invalid read/write address detection, and SCLK count error detection ensure a robust digital interface. CRC and error detection capabilities allow the ADGS1212 to be used in safety critical systems. Guaranteed break-before-make switching allows the the ADGS1212 to be used in multiplexer configurations with external wiring. The ADGS1212 1.8 V logic compatibility with 2.7 V ? VL ? 3.3 V Ultralow capacitance. <1 pC charge injection.Applications Automated test equipment Data acquisition systems Battery-powered systems Sample-and-hold systems Audio signal routing Video signal routing Communications systems

The ADGS1408 /?ADGS1409 are analog multiplexers comprisingeight single channels and four differential channels, respectively.A serial peripheral interface (SPI) controls the switches. The SPIinterface has robust error detection features such as cyclicredundancy check (CRC) error detection, invalid read/writeaddress detection, and SCLK count error detection.It is possible to daisy-chain multiple ADGS1408 / ADGS1409devices together. Daisy-chain mode enables the configuration ofmultiple devices with a minimal amount of digital lines. TheADGS1408 / ADGS1409 can also operate in burst mode todecrease the time between SPI commands.iCMOS construction ensures ultra low power dissipation, makingthe devices ideally suited for portable and battery-poweredinstruments.Each switch conducts equally well in both directions when on,and each switch has an input signal range that extends to thesupplies. In the off condition, signal levels up to the suppliesare blocked.The on-resistance profile is flat over the full analog input range,which ensures linearity and low distortion when switchingaudio signals.PRODUCT HIGHLIGHTS SPI interface removes the need for parallel conversion, logic traces, and reduces GPIO channel count. Daisy-chain mode removes additional logic traces when multiple devices are used. CRC error detection, invalid read/write address detection, and SCLK count error detection ensure a robust digital interface. CRC and error detection capabilities allow the use of the ADGS1408/ADGS1409 in safety critical systems. Minimal distortion.APPLICATIONS Automated test equipment Data acquisition systems Battery-powered systems Sample-and-hold systems Audio signal routing Video signal routing Communications systems Relay replacement?

The ADGS1408?/ ADGS1409 are analog multiplexers comprisingeight single channels and four differential channels, respectively.A serial peripheral interface (SPI) controls the switches. The SPIinterface has robust error detection features such as cyclicredundancy check (CRC) error detection, invalid read/writeaddress detection, and SCLK count error detection.It is possible to daisy-chain multiple ADGS1408 / ADGS1409devices together. Daisy-chain mode enables the configuration ofmultiple devices with a minimal amount of digital lines. TheADGS1408/ADGS1409 can also operate in burst mode todecrease the time between SPI commands.iCMOS construction ensures ultra low power dissipation, makingthe devices ideally suited for portable and battery-poweredinstruments.Each switch conducts equally well in both directions when on,and each switch has an input signal range that extends to thesupplies. In the off condition, signal levels up to the suppliesare blocked.The on-resistance profile is flat over the full analog input range,which ensures linearity and low distortion when switchingaudio signals.PRODUCT HIGHLIGHTS SPI interface removes the need for parallel conversion, logic traces, and reduces GPIO channel count. Daisy-chain mode removes additional logic traces when multiple devices are used. CRC error detection, invalid read/write address detection, and SCLK count error detection ensure a robust digital interface. CRC and error detection capabilities allow the use of the ADGS1408 / ADGS1409 in safety critical systems. Minimal distortion.?APPLICATIONS Automated test equipment Data acquisition systems Battery-powered systems Sample-and-hold systems Audio signal routing Video signal routing Communications systems Relay replacement?

The ADGS5412 contains four independent single-pole/single-throw (SPST) switches. A serial peripheral interface (SPI) controls the switches. The SPI interface has robust error detection features, including cyclic redundancy check (CRC) error detection, invalidread/write address detection, and serial clock (SCLK) counterror detection.It is possible to daisy-chain multiple ADGS5412 devices together,which enables the configuration of multiple devices with aminimal amount of digital lines. The ADGS5412 can also operate in burst mode to decrease the time between SPIcommands. Each switch conducts equally well in both directions when on,and each switch has an input signal range that extends to thesupplies. In the off condition, signal levels up to the supplies are blocked. The on-resistance profile is very flat over the full analog input range, which ensures good linearity and low distortion when switching audio signals. The ADGS5412 exhibits break-before-make switching action, allowing use of the device in multiplexer applications with external wiring.PRODUCT HIGHLIGHTS SPI interface removes the need for parallel conversion and logic traces and reduces general-purpose input/output (GPIO) channel count. Daisy-chain mode removes additional logic traces when multiple devices are used. CRC, invalid read/write address, and SCLK count error detection ensure a robust digital interface. CRC error detection capabilities allow for the use of the ADGS5412 in safety critical systems. Guaranteed break-before-make switching allows the use of the ADGS5412 in multiplexer configurations with external wiring.Trench isolation analog switch section guards against latch-up. A dielectric trench separates the positive (P) and negative (N) channel transistors thereby preventing latch-up even under severe overvoltage conditions.APPLICATIONS Relay replacement Automatic test equipment Data acquisition Instrumentation Avionics Audio and video switching Communication systems

The ADGS5414 contains eight independent single-pole/single-throw (SPST) switches. An SPI interface controls the switchesand has robust error detection features, including cyclicredundancy check (CRC) error detection, invalid read/writeaddress error detection, and SCLK count error detection.It is possible to daisy-chain multiple ADGS5414 devices together. This enables the configuration of multiple devices with a minimalamount of digital lines. The ADGS5414 can also operate in burstmode to decrease the time between SPI commands.Each switch conducts equally well in both directions when on, andeach switch has an input signal range that extends to the supplies. In the off condition, signal levels up to the supplies are blocked.The on-resistance profile is flat over the full analog input range, ensuring ideal linearity and low distortion when switchingaudio signals. The ADGS5414 exhibits break-before-makeswitching action, allowing the use of the device in multiplexer applications with external wiring.Product Highlights The SPI interface removes the need for parallel conversion, logic traces, and reduces the general-purpose input/output (GPIO) channel count. Daisy-chain mode removes the need for additional logic traces when using multiple devices. CRC error detection, invalid read/write address error detenction, and SCLK count error detection ensures a robust digital interface. CRC and error detection capabilities allow the use of the ADGS5414 in safety critical systems. Break-before-make switching allows external wiring of the switches to deliver multiplexer configurations. The trench isolation analog switch section guards against latch-up. A dielectric trench separates the positive and negative channel transistors, preventing latch-up even under severe overvoltage conditions.Applications Relay replacement Automatic test equipment Data acquisition Instrumentation Avionics Audio and video switching Communication systems

The ADM1062 Super Sequencer? is a configurable supervisory/sequencing device that offers a single-chip solution for supply monitoring and sequencing in multiple-supply systems. In addition to these functions, the ADM1062 integrates a 12-bit ADC and six 8-bit voltage output DACs. These circuits can be used to implement a closed-loop margining system that enables supply adjustment by altering either the feedback node or the reference of a dc-to-dc converter using the DAC outputs.For more information about the ADM1062 register map, refer to the AN-698 Application Note.?APPLICATIONS Central office systems Servers/routers Multivoltage system line cards DSP/FPGA supply sequencing In-circuit testing of margined supplies

The ADM1064 Super Sequencer? is a configurable supervisory/ sequencing device that offers a single-chip solution for supply monitoring and sequencing in multiple supply systems. In addition to these functions, the ADM1064 integrates a 12-bit ADC that can be used to accurately read back up to 12 separate voltages. The device also provides up to 10 programmable inputs for moni-toring undervoltage faults, overvoltage faults, or out-of-window faults on up to 10 supplies. In addition, 10 programmable outputs can be used as logic enables. Six of these programmable outputs can provide up to a 12 V output for driving the gate of an N-FET that can be placed in the path of a supply. ApplicationsCentral office systemsServers/routersMultivoltage system line cardsDSP/FPGA supply sequencingIn-circuit testing of margined supplies

The ADM1191 is an integrated current sense amplifier that offers digital current and voltage monitoring via an on-chip, 12-bit analog-to-digital converter (ADC), communicated through an I2C interface. An internal current sense amplifier senses voltage across the sense resistor in the power path via the VCC pin and the SENSE pin.A 12-bit ADC can measure the current seen in the sense resistor, as well as the supply voltage on the VCC pin.An industry-standard I2C interface allows a controller to read current and voltage data from the ADC. Measurements can be initiated by an I2C command or via the convert (CONV) pin. The CONV pin is especially useful for synchronizing reads on multiple ADM1191 devices. Alternatively, the ADC can run continuously, and the user can read the latest conversion data whenever it is required. Up to 16 unique I2C addresses can be created, depending on the way the A0 pin and the A1 pin are connected.A SETV pin is also included. A voltage applied to this pin is internally compared to the output voltage on the current sense amplifier. The output of the SETV comparator asserts when the current sense amplifier output exceeds the SETV voltage. When this event occurs, the ALERTB output asserts.The ALERTB output can be used as a flag to warn a micro-controller or field programmable gate array (FPGA) of an overcurrent condition. ALERTB outputs of multiple ADM1191 devices can be tied together and used as a combined alert.The ADM1191 is packaged in a 10-lead MSOP.APPLICATIONS Power monitoring/power budgeting Central office equipment Telecommunication and data communication equipment PCs/servers

The ADM1272 ?is a hot swap controller that allows a circuit board to be removed from or inserted into a live backplane. It also features current, voltage, and power readback via an integrated 12-bit analog-to-digital converter (ADC), accessed using a PMBus? interface. This device is able to withstand up to 120 V, which makes it very robust in surviving surges and transients commonly associated with high voltage systems, usually clamped using protection devices such as transient voltage suppressors (TVSs) that can often exceed 100 V.The load current, ILOAD, is measured using an internal current sense amplifier that measures the voltage across a sense resistor in the power path via the SENSE+ and SENSE? pins. A default current limit sense voltage of 30 mV is set, but this limit can be?adjusted down, if required, using a resistor divider network from the VCAP regulator output voltage to the ISET pin. An additional resistor can also be placed from ISET to VIN (or VOUT) to allow the current limit to track inversely with the rail voltage. This resistor allows an approximate system power limit to be used.The ADM1272 ?limits the current through the sense resistor by controlling the gate voltage of an external N channel field effect transistor (FET) in the power path. The sense voltage, and therefore the load current, is maintained below the preset maximum. The ADM1272 ?protects the external FET by monitoring and limiting the energy transfer through the FET while the current is being controlled. This energy limit is set by the choice of components connected to the EFAULT pin (for fault protection mode) and the ESTART pin during startup. Therefore, different energy limits can be set for start-up and normal fault conditions. During startup, inrush currents are maintained very low and different areas of the safe operating area (SOA) curve are of interest, whereas during fault conditions, the currents can be much higher.The controller uses the drain to source voltage (VDS) across the FET to set the current profile of the EFAULT and ESTART pins and, therefore, the amount of much energy allowed to be transferred in the FET. This energy limit ensures the MOSFET remains within the SOA limits. Optionally, use a capacitor on the DVDT pin to set the output voltage ramp rate, if required. In case of a short-circuit event, a fast internal overcurrent detector responds in hundreds of ns and signals the gate to shut down. A 1.5 A pull-down device ensures a fast FET response. The gate then recovers control within 50 ?s to ensure minimal disruption during conditions, such as line steps and surges. The?ADM1272 ?features overvoltage (OV) and undervoltage (UV) protection, programmed using external resistor dividers on the UVH, UVL, and OV pins. The use of two pins for undervoltage allows independent accurate rising and falling thresholds. The PWRGD output pin signals when the output voltage is valid and the gate is sufficiently enhanced. The validity of VOUT is determined using the PWGIN pin.The 12-bit ADC measures the voltage across the sense resistor, the supply voltage on the SENSE+ pin, the output voltage, and the temperature using an external NPN/PNP device. A PMBus interface allows a controller to read data from the ADC. As many as 16 unique I2C addresses can be selected, depending on how the two ADRx pins are connected. The?ADM1272 is available in a custom 48-lead LFCSP (7 mm ? 8 mm) with a pinstrap mode that allows the device to be configured for automatic retry or latchoff when an overcurrent (OC) fault occurs.Applications 48 V/54 V systems Servers Power monitoring and control/power budgeting Central office equipment Telecommunication and data communication equipment Industrial applications