ADUM1402 - ADI

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

Part No

ADUM1402
Manufacturer

ADI
ChipWorker Part#

CW234748797
Description

Quad-Channel Digital Isolator (2/2Channel Directionality)
Documentation

Datasheet

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ADUM1402 Specifications

Attribute	Attribute Value

Part Number	ADUM1402
Manufacturer	ADI
ChipWorker Part#	CW234748797
Documentation	Datasheet
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Product Lifecycle Status	Active

Product Description

Product Details
The ADuM1402 is a quad-channel digital isolator with 2/2 channel directionality based on Analog Devices, Inc.,_i_Coupler® technology. Combining high speed CMOS and monolithic air core transformer technology, this isolation component provides outstanding performance characteristics superior to alternatives, such as optocoupler devices.
By avoiding the use of LEDs and photodiodes, _i_Coupler devices remove the design difficulties commonly associated with opto-couplers. The typical optocoupler concerns regarding uncertain current transfer ratios, nonlinear transfer functions, and temperature and lifetime effects are eliminated with the simple _i_Coupler digital interfaces and stable performance characteristics.
The need for external drivers and other discrete components is eliminated with _i_Coupler products. Furthermore, iCoupler devices consume one-tenth to one-sixth of the power of optocouplers at comparable signal data rates.
The ADuM1400/ADuM1401/ADuM1402 isolators provide four independent isolation channels in a variety of channel configurations and data rates (see the Ordering Guide in the data sheet). All models operate with the supply voltage on either side ranging from 2.7 V to 5.5 V, providing compatibility with lower voltage systems as well as enabling a voltage translation functionality across the isolation barrier. In addition, the ADuM1400/ADuM1401/ADuM1402 provide low pulse width distortion (<2 ns for CRW grade) and tight channel-to-channel matching (<2 ns for CRW grade). Unlike other optocoupler alternatives, the ADuM1400/ADuM1401/ADuM1402 isolators have a patented refresh feature that ensures dc correctness in the absence of input logic transitions and when power is not applied to one of the supplies.
**Applications**
General-purpose multichannel isolation
SPI interface/data converter isolation
RS-232/RS-422/RS-485 transceivers
Industrial field bus isolation
Automotive systems
### Features and Benefits
Qualified for automotive applications
Low power operation
Bidirectional communication
3 V/5 V level translation
High temperature operation: 125°C
High data rate: dc to 90 Mbps (NRZ)
Precise timing characteristics
High common-mode transient immunity:
>25 kV/μs
See data sheet for additional features

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