ADUM1447ARQZ-RL7

The ADUM1447ARQZ-RL7 digital isolator is a groundbreaking innovation in the realm of ultralow power digital isolation. With a typical quiescent current of just 5.6 µA per channel at 3.3 V and an astonishingly low 0.3 µA per channel with refresh disabled, it sets new standards in power efficiency. This component's versatility shines through with support for both 3.3 V and 2.5 V operations, accommodating various voltage requirements effortlessly. Its high-speed bidirectional communication capabilities, boasting data rates of up to 2 Mbps using NRZ encoding, make it ideal for applications demanding rapid data exchange.

·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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