ADUM1445ARQZ-RL7

The ADUM1445ARQZ-RL7 digital isolator is the top choice for various applications, offering ultralow power (5.6 µA per channel at 3.3 V), high-speed communication (up to 2 Mbps), and adaptability to 3.3 V and 2.5 V operation. Its compact design fits tight spaces, and it excels in harsh conditions with high-temperature operation (up to 125°C) and strong common-mode transient immunity (over 25 kV/µs). In short, it sets the standard for digital isolation with exceptional performance and reliability.

·General-purpose, low power multichannel isolation

·1 MHz, low power peripheral interface (SPI

·4 mA to 20 mA loop process controls

The ADuM1440/ADuM1441/ADuM1442/ADuM1445/ ADuM1446/ADuM14471 are micropower, 4-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. As shown in Figure 3, in standard operating mode, when ENx = 0 (internal refresh enabled), the current per channel is less than 10 µA.freeing almost 70% of board space compared to isolators packages in wide body SOIC packages.

The devices withstand high isolation voltages and meet regulatory requirements, such as UL and CSA standards. In addition to the space savings, the ADuM1440/ADuM1441/ADuM1442/ ADuM1445/ADuM1446/ADuM1447 operate with supplies as low as 2.25 V.Despite the low power consumption, all models of the ADuM1440/ ADuM1441/ADuM1442/ADuM1445/ADuM1446/ADuM14 47 provide low, pulse width distortion at <8 ns. In addition, every model has an input glitch filter to protect against extraneous noise disturbances.

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