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Description
Product Details
The ADuM131x are 3-channel digital isolators based on Analog Devices, Inc., _i_Coupler® technology. Combining high speed CMOS and monolithic air core transformer technology, these isolation components provide 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 optocouplers. The typical optocoupler concerns regarding uncertain current transfer ratios, maximum operating 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 these _i_Coupler products. Furthermore, _i_Coupler devices consume one-tenth to one-sixth the power of optocouplers at comparable signal data rates. The _i_Coupler also offers higher channel densities and more options for channel directionality.
The ADuM131x isolators provide three independent isolation channels in a variety of channel configurations and data rates up to 10 Mbps (see the Ordering Guide). 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 voltage translation functionality across the isolation barrier. All products allow the user to predetermine the default output state in the absence of input VDD1 power with a simple control pin. Unlike other optocoupler alternatives, the ADuM131x isolators have a patented refresh feature that ensures dc correctness in the absence of input logic transitions and during power-up/ power-down conditions.
**Applications**
General-purpose multichannel isolation
SPI interface/data converter isolation
RS-232/RS-422/RS-485 transceiver
Industrial field bus isolation
### Features and Benefits
Bidirectional communication
3 V/5 V level translation
Schmitt trigger inputs
High temperature operation: 105°C
Low Power Operation
5 V operation
1.7 mA per channel maximum @
0 Mbps to 2 Mbps
4.0 mA per channel maximum @
2 Mbps to 10 Mbps
3 V operation
1.0 mA per channel maximum @
0 Mbps to 2 Mbps
2.1 mA per channel maximum @
2 Mbps to 10 Mbps
Up to 10 Mbps data rate (NRZ)
Programmable default output state
High common-mode transient immunity: >25 kV/µs
16-lead, RoHS-compliant, SOIC wide body package
8.1 mm external creepage
Safety and Regulatory Approvals
UL recognition: 2500 V rms for 1 minute per UL 1577
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- Carefully inspected and packed by ManyChip warehouse
- Vacuum packaging
- Anti-static packaging
- Shockproof foam
The terms here are for reference only, the actual terms are subject to the sales quotation.
- Please confirm product specifications when ordering.
- MOQ refers to the minimum order quantity required to purchase each part.
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- Decapsulation control
- X-ray control
- XRF inspection
- Electrical testing
- Surface testing
-Digital components warehouse, covering an area of 800 square meters, with constant temperature and humidity
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