ADUM1401ARWZ-RL ADUM1401BRWZ-RL ADUM1401WSRWZ ADUM1402ARWZ-RL UART Interface IC Digital Isolators Digital Quad-CH
uart multiplexer ic
,uart level shifter ic
ADUM1401ARWZ-RL ADUM1401BRWZ-RL ADUM1401WSRWZ ADUM1402ARWZ-RL UART Interface IC Digital Isolators Digital Quad-CH
FEATURES
- Qualified for automotive applications Low power operation
- 5 V operation
- 1.0 mA per channel maximum at 0 Mbps to 2 Mbps 3.5 mA per channel maximum at 10 Mbps
- 31 mA per channel maximum at 90 Mbps
- 3 V operation
- 0.7 mA per channel maximum at 0 Mbps to 2 Mbps 2.1 mA per channel maximum at 10 Mbps
- 20 mA per channel maximum at 90 Mbps
- Bidirectional communication
- 3 V/5 V level translation
- High temperature operation: 125°C High data rate: dc to 90 Mbps (NRZ) Precise timing characteristics
- 2 ns maximum pulse width distortion
- 2 ns maximum channel-to-channel matching High common-mode transient immunity: >25 kV/μs Output enable function
- 16-lead SOIC wide body package
- RoHS-compliant models available
- Safety and regulatory approvals
- UL recognition: 2500 V rms for 1 minute per UL 1577 CSA Component Acceptance Notice 5A
- VDE Certificate of Conformity
- DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
- VIORM = 560 V peak
- TÜV approval: IEC/EN/UL/CSA 61010-1
APPLICATIONS
- General-purpose multichannel isolation SPI interface/data converter isolation RS-232/RS-422/RS-485 transceivers Industrial field bus isolation Automotive systems
- Quad-Channel Digital Isolators
GENERAL DESCRIPTION
The ADuM1400/ADuM1401/ADuM14021 are quad-channel digital isolators based on Analog Devices, Inc., iCoupler® 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, iCoupler 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 iCoupler digital interfaces and stable performance characteristics.
The need for external drivers and other discrete components is eliminated with these iCoupler 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 configu- rations and data rates (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 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.
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