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Name: ADUM7441CRQZ-RL7
Brand: Analog Devices Inc.
SKU: ADUM7441CRQZ-RL7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Analog Devices Inc. ADUM7441CRQZ-RL7

Part No.:: ADUM7441CRQZ-RL7

Manufacturer:: Analog Devices Inc.

Package:: 16-SSOP (0.154, 3.90mm Width)

Datasheet:

Description:: DGTL ISO 1000VRMS 4CH GP 16QSOP

In Stock:: 279

Quantity:: Add To Cart

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ADUM7441CRQZ-RL7 Typical application Circuitry

ADUM7441CRQZ-RL7

The ADUM7441CRQZ-RL7 is a specific configuration within the ADuM7441 series, known for its quad-channel digital isolators with integrated DC-to-DC converters, designed by Analog Devices. Utilizing iCoupler® technology, this series provides precise and reliable galvanic isolation for both signal and power, making it an excellent choice for applications requiring isolation such as industrial control systems, medical devices, and isolated sensor interfaces. The "RL7" suffix typically denotes the packaging option, indicating that the device is supplied in a reel of 7-inch diameter, suitable for automated assembly processes.

1. Primary Side Power Supply (VDD1, GND1): The ADUM7441CRQZ-RL7 requires a stable power supply on the primary side, connected to the VDD1 pin. This supply is usually within the range of 3.3V to 5V. The primary ground is connected to the GND1 pin. Decoupling capacitors should be placed near these pins to ensure a clean power supply and stable operation.

2. Secondary Side Power Supply (VDD2, GND2): The secondary side, isolated from the primary, also needs a power connection at the VDD2 pin. This can be provided by the integrated DC-to-DC converter or an external source. The secondary ground is connected to the GND2 pin. Similar to the primary side, decoupling capacitors are recommended near these pins to minimize noise.

3. Digital Signal Inputs (IN1, IN2, IN3, IN4): The device has four input channels on the primary side, labeled IN1 to IN4. These inputs accept TTL or CMOS level digital signals, which are then isolated and transmitted to the corresponding outputs on the secondary side.

4. Isolated Digital Outputs (OUT1, OUT2, OUT3, OUT4): Corresponding to the inputs, there are four isolated digital outputs on the secondary side, labeled OUT1 to OUT4. These outputs deliver the isolated signals to the secondary side circuitry, effectively maintaining signal integrity across the isolation barrier.

5. Integrated DC-to-DC Converter Outputs (VISO, GNDiso): The ADUM7441CRQZ-RL7 includes an integrated DC-to-DC converter whose output is available at the VISO pin, providing isolated power to the secondary side. The isolated ground associated with this power supply is connected to the GNDiso pin. Proper filtering and decoupling at the VISO output are essential for a stable power supply.

6. PCB Layout Guidelines: Maintaining signal integrity and isolation performance requires careful PCB layout, ensuring adequate clearance and creepage distances between the primary and secondary sides as per safety standards. Minimizing parasitic capacitance between input and output channels is also crucial for high-performance operation.

7. Thermal Management Practices: Although designed for efficient operation, the ADUM7441CRQZ-RL7 may require thermal management considerations, especially when the integrated DC-to-DC converter is heavily utilized or in high-ambient-temperature environments. Effective heat dissipation techniques can help preserve device performance and longevity.

8. Isolation and Grounding Strategy: Ensuring proper isolation involves meticulous grounding practices. The primary ground (GND1) and the secondary ground (GND2, GNDiso) should be isolated from each other, maintaining the integrity of the isolation barrier provided by the device.

Incorporating the ADUM7441CRQZ-RL7 into a design involves detailed planning around the power supply for both primary and secondary sides, digital input/output interfacing, and leveraging the integrated DC-to-DC converter for isolated power requirements, all while adhering to stringent PCB layout standards for optimal performance and safety in isolated systems.

ADUM7441CRQZ-RL7 information

ADUM7441CRQZ-RL7 Specifications

Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
iCoupler®
ProductStatus:
Active
Technology:
Magnetic Coupling
Type:
General Purpose
IsolatedPower:
No
NumberofChannels:
4
Inputs-Side1/Side2:
3/1
ChannelType:
Unidirectional
Voltage-Isolation:
1000Vrms
CommonModeTransientImmunity(Min):
15kV/µs
DataRate:
25Mbps
PropagationDelaytpLH/tpHL(Max):
50ns, 50ns
PulseWidthDistortion(Max):
5ns
Rise/FallTime(Typ):
2ns, 2ns
Voltage-Supply:
3V ~ 5.5V
OperatingTemperature:
-40°C ~ 105°C
MountingType:
Surface Mount

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6. What is the process for return or replacement of ADUM7441CRQZ-RL7?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the ADUM7441CRQZ-RL7 we delivered, we will accept the replacement or return of the ADUM7441CRQZ-RL7 only when all of the below conditions are fulfilled:

(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 ADUM7441CRQZ-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