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Name: ADUM1281ARZ-RL7
Brand: Analog Devices Inc.
SKU: ADUM1281ARZ-RL7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Analog Devices Inc. ADUM1281ARZ-RL7

Part No.:: ADUM1281ARZ-RL7

Manufacturer:: Analog Devices Inc.

Package:: 8-SOIC (0.154, 3.90mm Width)

Datasheet:: ADUM1281ARZ-RL7.pdf

Description:: DGTL ISO 3000VRMS 2CH GP 8SOIC

In Stock:: 3478

Quantity:: Add To Cart

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ADUM1281ARZ-RL7 Typical application Circuitry

ADUM1281ARZ-RL7

The ADUM1281ARZ-RL7 is a specific model within the ADuM1281 series of digital isolators developed by Analog Devices. This series utilizes Analog Devices' proprietary iCoupler® technology to provide galvanic isolation between digital signals, effectively preventing noise and ground loops while allowing for safe communication between different voltage domains. The ADuM1281 series is designed for applications that require reliable isolation for signal integrity and safety, such as industrial automation, data communication, and medical equipment. The "-RL7" designation indicates that this model is provided in a reel of 7-inch diameter, suitable for automated assembly processes.

1. Power Supply Inputs (VDD1, GND1 for Side 1; VDD2, GND2 for Side 2): The ADUM1281ARZ-RL7 requires two independent power supplies for its isolated sides. VDD1 and GND1 are for the input side (Side 1), and VDD2 and GND2 are for the output side (Side 2). These power supplies typically operate within the range of 3.0V to 5.5V. Decoupling capacitors should be placed close to both VDD1 and VDD2 pins to ensure stable operation and minimize noise.

2. Input Channels (IN1, IN2 on Side 1): There are two input channels, IN1 and IN2, that accept digital signals (TTL or CMOS levels) on the input side of the device. These inputs are where the digital signals to be isolated are applied.

3. Isolated Output Channels (OUT1, OUT2 on Side 2): Corresponding to the input channels, there are two isolated output channels, OUT1 and OUT2, on the output side of the device. These outputs provide the isolated replicas of the input digital signals, maintaining signal integrity across the isolation barrier.

4. Directionality (Not Applicable for ADUM1281 Series): The ADUM1281 series, including the ADUM1281ARZ-RL7, typically features fixed-direction channels, with each channel having a predetermined input side and output side, thus not requiring additional direction control pins.

5. PCB Layout Recommendations: When designing the PCB layout, it's crucial to maintain adequate physical separation between the input and output sides to uphold the specified isolation voltage. Care should be taken to minimize parasitic capacitance between the input and output to preserve signal integrity. Observing proper clearance and creepage distances as per safety standards is also essential.

6. Thermal Management Considerations: Even though the ADUM1281ARZ-RL7 is designed for low-power operation, in applications with high ambient temperatures or limited airflow, thermal management should be considered to ensure reliable operation over the intended temperature range.

7. Isolation and Safety: The primary feature of the ADUM1281ARZ-RL7 is its ability to provide galvanic isolation between the input and output sides. Ensuring that the device's isolation capabilities are not compromised is critical for safety, especially in applications dealing with high voltages or in medical equipment.

Integrating the ADUM1281ARZ-RL7 into an electronic system involves careful consideration of power supply connections, input and output signal routing, and PCB layout to maximize performance and safety. By adhering to these design guidelines, the ADUM1281ARZ-RL7 can be effectively used in a wide range of applications that require high-integrity digital signal isolation.

ADUM1281ARZ-RL7 information

ADUM1281ARZ-RL7 Specifications

Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
iCoupler®
ProductStatus:
Active
Technology:
Magnetic Coupling
Type:
General Purpose
IsolatedPower:
No
NumberofChannels:
2
Inputs-Side1/Side2:
1/1
ChannelType:
Unidirectional
Voltage-Isolation:
3000Vrms
CommonModeTransientImmunity(Min):
25kV/µs
DataRate:
1Mbps
PropagationDelaytpLH/tpHL(Max):
50ns, 50ns
PulseWidthDistortion(Max):
10ns
Rise/FallTime(Typ):
2.5ns, 2.5ns
Voltage-Supply:
3V ~ 5.5V
OperatingTemperature:
-40°C ~ 125°C
MountingType:
Surface Mount

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6. What is the process for return or replacement of ADUM1281ARZ-RL7?

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(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of ADUM1281ARZ-RL7.

(3)The PartNo is unused and only in the original unpacked packaging.

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(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations