The ADuM1240 is a micropower, dual-channel default high digital isolator with 2/1 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, the ADuM1240 and ADuM1241 have a default high output and the ADuM1245 and ADuM1246 have a default low output.
iCoupler Technology. Patented Analog Devices technology
combining high speed CMOS and monolithic air core
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|ADuM1240/ADuM1241/ADuM1245/ADuM1246: Micropower, Dual-Channel Digital Isolators Data Sheet (Rev A, 04/2014) (pdf, 368 kB)||Data Sheets|
|UG-663: Evaluating the iCoupler ADuM1240ARSZ/ADuM1241ARSZ/ADuM1245ARSZ/ADuM1246ARSZ with the EVAL-ADuM1241EBZ Evaluation System (pdf, 469 kB)||User Guides|
|MS-2644: Ultralow Power Opening Applications to High Speed Isolation (pdf, 1747 kB)||Technical Articles|
|Glossary of EE Terms||Glossary||HTML|
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.