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Name: ADUM7441CRQZ
Brand: Analog Devices Inc.
SKU: ADUM7441CRQZ
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. ADUM7441CRQZ

Part No.:: ADUM7441CRQZ

Manufacturer:: Analog Devices Inc.

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

Datasheet:

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

In Stock:: 3960

Quantity:: Add To Cart

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ADUM7441CRQZ Typical application Circuitry

ADUM7441CRQZ

The ADUM7441CRQZ is part of the ADuM744 series, a family of quad-channel digital isolators with integrated DC-to-DC converters, designed by Analog Devices. This series utilizes Analog Devices' proprietary iCoupler® technology to provide robust galvanic isolation for digital signals, combined with an isolated power supply, making it an ideal solution for applications requiring both signal isolation and power isolation, such as industrial PLCs, isolated sensor interfaces, and medical equipment where safety and reliability are paramount.

1. Power Supply Connections for Primary Side (VDD1, GND1): The ADUM7441CRQZ requires a power supply connection on the primary side, connected to the VDD1 pin. This supply typically operates at 3.3V or 5V. The ground connection for the primary side circuitry is made through the GND1 pin. It's crucial to ensure a stable and clean power supply for reliable operation. Decoupling capacitors should be placed close to the VDD1 and GND1 pins to minimize noise.

2. Power Supply Connections for Secondary Side (VDD2, GND2): The secondary side of the ADUM7441CRQZ, which is galvanically isolated from the primary side, also requires a power connection, made to the VDD2 pin. This can be supplied by the integrated DC-to-DC converter if used, or by an external supply, depending on the application's requirements. The ground connection for the secondary side is made through the GND2 pin. Similar to the primary side, decoupling capacitors are recommended near these pins.

3. Digital Signal Inputs (IN1, IN2, IN3, IN4): The device features four independent input channels, IN1 through IN4, on the primary side. These inputs accept digital signals from a microcontroller or other logic devices, which are then isolated and transmitted to the corresponding output channels on the secondary side. The inputs are compatible with standard CMOS and LVTTL logic levels.

4. Isolated Digital Signal Outputs (OUT1, OUT2, OUT3, OUT4): On the secondary side, the ADUM7441CRQZ provides four isolated digital outputs, OUT1 through OUT4, which correspond to the inputs on the primary side. These outputs deliver the isolated signals to the secondary side circuitry, maintaining the integrity and timing of the original digital signals.

5. Integrated DC-to-DC Converter (VISO, GNDiso): The ADUM7441CRQZ includes an integrated DC-to-DC converter to provide isolated power to the secondary side. The VISO pin is the output of the isolated power supply, and GNDiso is the isolated ground. Proper filtering and decoupling on the VISO output are important to ensure a stable isolated power supply.

6. PCB Layout Considerations: Careful PCB layout is critical to maintain signal integrity and isolation performance. Adequate clearance and creepage distances between the primary and secondary sides must be maintained according to the applicable safety standards. The layout should minimize parasitic capacitance between input and output channels to preserve signal integrity.

7. Thermal Management: While the ADUM7441CRQZ is designed for efficient operation, thermal management should be considered, especially when the integrated DC-to-DC converter is used extensively or in high-temperature environments. Ensuring good thermal conduction away from the device can help maintain performance and reliability.

8. Grounding and Isolation: Proper grounding is essential for both the primary and secondary sides, with careful attention to ensure that the isolated grounds (GND2 and GNDiso) are not inadvertently connected to the primary ground (GND1) or each other, except through the intended isolation barrier.

Integrating the ADUM7441CRQZ into a system demands meticulous attention to power supply arrangements, digital input and output connections, utilization of the integrated DC-to-DC converter for isolated power, and adherence to PCB layout guidelines for signal integrity and isolation. By following these design principles, the ADUM7441CRQZ can be effectively used in applications requiring robust digital isolation combined with isolated power delivery.

ADUM7441CRQZ information

ADUM7441CRQZ Specifications

Packaging:
Tube
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?

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 we delivered, we will accept the replacement or return of the ADUM7441CRQZ 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.

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

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations