- Part Models
- 4
- 1ku List Price
- Starting From $2.55
ADUM1442
RECOMMENDED FOR NEW DESIGNSMicropower Quad-Channel Digital Isolator, Default High (2/2 Channel Directionality)
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Part Details
- 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)
- 3.1 μA per channel quiescent current, refresh enabled
- 0.1 μA per channel quiescent current, refresh disabled
- 117 μA/Mbps per channel typical dynamic current
- 3.3 V operation (typical)
- 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
- Regulatory Information
- UL 1577 component recognition program
- 2500 V rms for 1 minute per UL 1577 QSOP package
- 3750V rms for 1 minute per UL 1577 SSOP package
- CSA Component Acceptance Notice 5A
- VDE certificate of conformity
- DIN VDE V 0884-11:2017-01
- VIORM = 565 VPEAK QSOP package
- VIORM = 645 VPEAK SSOP package
- IECEx and ATEX intrinsic safety
- Sira 0518 II 1G Ex ia IIC Ga
- UL 1577 component recognition program
- Dual-channel products available
The ADuM1440/ADuM1441/ADuM1442/ADuM1445/ADuM1446/ADuM1447 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 the data sheet, 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 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, 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/ADuM1447 provide low, pulse width distortion at <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
Documentation
Data Sheet 1
User Guide 1
Technical Articles 1
Safety and Regulatory Compliance 1
Video 5
Solutions Bulletin & Brochure 1
Safety and Regulatory Compliance 1
Webcast 3
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| ADUM1442ARQZ | 16-Lead QSOP | ||
| ADUM1442ARQZ-RL7 | 16-Lead QSOP | ||
| ADUM1442ARSZ | 20-Lead SSOP | ||
| ADUM1442ARSZ-RL7 | 20-Lead SSOP |
This is the most up-to-date revision of the Data Sheet.
Tools & Simulations
ADUM1442 IBIS Models 2
Evaluation Kits
ADUM144x Evaluation Board
Resources
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