ADUM1441 - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

ADUM1441
Manufacturer

ADI
ChipWorker Part#

CW983501411
Description

Micropower Quad-Channel Digital Isolator, Default High (3/1Channel Directionality)
Documentation

Datasheet

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ADUM1441 Specifications

Attribute	Attribute Value

Part Number	ADUM1441
Manufacturer	ADI
ChipWorker Part#	CW983501411
Documentation	Datasheet
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Product Lifecycle Status	Active

Product Description

Product Details
The ADUM1441 is a micropower, 4-channel digital isolator which has default high output and 3/1 channel directionality based on the Analog Devices, Inc., iCoupler® technology. (Dual-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, while requiring the lowest power of any available isolation product. The ENX signals can be used to disable the internal refresh, which lowers the total quiescent current to less than 1 µA.
The ADuM1440/ADuM1441/ADuM1442/ADuM1445/ ADuM1446/ADuM1447 family of quad 2.5 kV digital isolation devices are packaged in a small 16-lead QSOP and 20-lead SSOP. While most 4-channel isolators come in 16-lead wide SOIC packages, the ADuM1440/ ADuM1441/ ADuM1442/ ADuM1445/ ADuM1446/ ADuM1447 frees almost 70% of board space and yet can still withstand high isolation voltages and meet regulatory requirements, such as UL and CSA standards (pending). In addition to the space savings, the ADuM1440/ ADuM1441/ ADuM1442/ ADuM1445/ ADuM1446/ ADuM1447 operates with supplies as low as 2.25 V.
Despite the low power consumption, all models of the ADuM1440/ ADuM1441/ADuM1442/ADuM1445/ADuM1446/ADuM1447 provide low, pulse width distortion <8 ns. In addition, every model has an input glitch filter to protect against extraneous noise disturbances.
**Applications**
General-purpose, low power multichannel isolation
1 MHz, low power peripheral interface (SPI)
4 mA to 20 mA loop process controls
### Features and Benefits
Ultralow power operation
3.3 V operation (typical)
5.6 µA per channel quiescent current, refresh enabled
0.3 µA per channel quiescent current, refresh disabled
148 µA/Mbps per channel typical dynamic current
2.5 V operation (typical)
3.4 µA per channel quiescent current, refresh enabled
0.1 µA per channel quiescent current, refresh disabled
117 µA/Mbps per channel typical dynamic current
Small, 16-lead QSOP and
20-lead SSOP
Bidirectional communication
Up to 2 Mbps data rate (NRZ)
High temperature operation: 125°C
High common-mode transient immunity: >25 kV/µs
Dual-channel products available
See datasheet for additional features

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