Analog Devices Inc./Maxim Integrated

The ADuM1233 is an isolated, half-bridge gate driver that employs the Analog Devices, Inc.,iCoupler®technology to provide independent and isolated high-side and low-side outputs. Combining high speed CMOS and monolithic transformer technology, this isolation component provides outstanding performance characteristics superior to optocoupler-based solutions.By avoiding the use of LEDs and photodiodes, thisiCoupler gate drive device is able to provide precision timing characteristics not possible with optocouplers. Furthermore, the reliability and performance stability problems associated with optocoupler LEDs are avoided.In comparison to gate drivers employing high voltage level translation methodologies, the ADuM1233 offers the benefit of true, galvanic isolation between the input and each output. Each output can be operated up to ±700 VPEAKrelative to the input, thereby supporting low-side switching to negative voltages. The differential voltage between the high side and low side can be as high as 700 VPEAK.As a result, the ADuM1233 provides reliable control over the switching characteristics of IGBT/MOSFET configurations over a wide range of positive or negative switching voltages.ApplicationsIsolated IGBT/MOSFET gate drivesPlasma displaysIndustrial invertersSwitching power supplies

The ADuM1240 /ADuM1241/ADuM1245/ADuM1246are micropower, dual-channel digital isolators based on the Analog Devices, Inc.,iCoupler®technology. (Quad-channel products available). Combining high speed, complementary metal oxide semiconductor (CMOS) and monolithic air core transformer technologies, these isolation components provide outstanding performance characteristics superior to the alternatives, such as optocoupler devices.The 20-lead SSOP version of the ADuM1240 / ADuM1241 / ADuM1245 / ADuM1246 allows control of the internal refresh functions. As shown in Figure 3, in standard operating mode, when ENx= 0 (internal refresh enabled), the current per channel is less than 10 μA.When ENx= 1 (internal refresh disabled), the current per channel drops to less than 1 μA.The ADuM1240 / ADuM1241 / ADuM1245 / ADuM1246 are packaged in either a 20-lead SSOP for 3.75 kV reinforced isolation or an 8-lead SOIC for 3 kV basic isolation. The devices meet regulatory requirements, such as UL and CSA standards.In addition to the space saving package options, the ADuM1240 / ADuM1241 / ADuM1245 / ADuM1246 operate with supplies as low as 2.25 V. All models provide low, pulse width distortion at <8 ns. In addition, every model has an input glitch filter to protect against extraneous noise disturbances.&PRODUCT HIGHLIGHTSOutstanding Power Performance.These 3 kV digital isolators operate with 2.5 V supplies.Distortion and Noise Protection.Low pulse width distortion (< 8 ns for A grade models) and an input glitch filter for extraneous noise disturbance protection.APPLICATIONSGeneral-purpose, low power, multichannel isolation1 MHz low power SPI4 mA to 20 mA loop process control

The ADUM1241 is a micropower, dual-channel digital isolator which has a default high and 1/1 directionality based on the Analog Devices, Inc.,iCoupler®technology, (Quad-channel products available). Combining high speed CMOS and monolithic air core transformer technologies, these isolation components provide outstanding performance characteristics superior to alternatives, such as optocoupler devices, yet require the lowest power of any available isolation product.Packaged in an 8-lead SOIC, this series of quad, 3 kV digital isolation devices operate with supplies as low as 2.5 V, offering the lowest available power consumption at a fraction of the power of comparable isolators at comparable data rates (up to 2 Mbps). In addition, all models provide low pulse width distortion (<8 ns for A grade) and an input glitch filter for extraneous noise disturbance protection.All models operate with the supply voltage on either side ranging as low as 2.25 V, providing compatibility with lower voltage systems, as well as enabling voltage translation functionality across the isolation barrier. All products also have an output default logic state in the absence of the input power. When power is first applied, or is not yet applied to the input side, theADuM1240and ADuM1241 have a default high output and theADuM1245andADuM1246have a default low output.PRODUCT HIGHLIGHTSOutstanding Power Performance. These 3 kV digital isolators operate with 2.5 V supplies.Distortion and Noise Protection. Low pulse width distortion (< 8 ns for A grade models) and an input glitch filter for extraneous noise disturbance protection.iCoupler Technology. Patented Analog Devices technology combining high speed CMOS and monolithic air core transformer technologies.APPLICATIONSGeneral-purpose, low power, multichannel isolation1 MHz low power SPI4 mA to 20 mA loop process control

TheADuM1240/ADuM1241/ADuM1245/ADuM1246are micropower, 2-channel, digital isolators based on the Analog Devices, Inc.,iCoupler®technology. Combining high speed, complementary metal oxide semiconductor (CMOS) and monolithic air core transformer technologies, these isolation components provide outstanding performance characteristics superior to the alternatives, such as optocoupler devices. The 20-lead SSOP version of the ADuM1240 / ADuM1241 / ADuM1245 / ADuM1246 allows control of the internal refresh functions. As shown in Figure 3, in standard operating mode, when ENx= 0 (internal refresh enabled), the current per channel is less than 10 μA.When ENx= 1 (internal refresh disabled), the current per channel drops to less than 1 μA.The ADuM1240 / ADuM1241 / ADuM1245 / ADuM1246 are packaged in either a 20-lead SSOP for 3.75 kV reinforced isolation or an 8-lead SOIC for 3 kV basic isolation. The devices meet regulatory requirements, such as UL and CSA standards.In addition to the space saving package options, the ADuM1240 / ADuM1241 / ADuM1245 / ADuM1246 operate with supplies as low as 2.25 V. All models provide low, pulse width distortion at <8 ns. In addition, every model has an input glitch filter to protect against extraneous noise disturbances.APPLICATIONSGeneral-purpose, low power, multichannel isolation1 MHz low power SPI4 mA to 20 mA loop process control

TheADuM1250/ADuM1251 are hot swappable digital isolators with non-latching, bidirectional communication channels that are compatible with I2C interfaces. This eliminates the need for splitting I2C signals into separate transmit and receive signals for use with standalone optocouplers.The ADuM1250 provides two bidirectional channels, supporting a complete isolated I2C interface. The ADuM1251 provides one bidirectional channel and one unidirectional channel for applications where a bidirectional clock is not required.Both the ADuM1250 and the ADuM1251 contain hot swap circuitry to prevent glitching data when an unpowered card is inserted onto an active bus.These isolators are based on theiCoupler®chip scale transformer technology from Analog Devices, Inc.iCoupler is a magnetic isolation technology with functional, performance, size, and power consumption advantages as compared to optocouplers. With the ADuM1250/ADuM1251,iCoupler channels can be integrated with semiconductor circuitry, which enables a complete isolated I2C interface to be implemented in a small form factor.ApplicationsIsolated I2C, SMBus, or PMBus interfacesMultilevel I2C interfacesPower suppliesNetworkingPower over EthernetHybrid electric vehicle battery management