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Name: ADUM7440CRQZ
Brand: Analog Devices Inc.
SKU: ADUM7440CRQZ
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. ADUM7440CRQZ

Part No.:: ADUM7440CRQZ

Manufacturer:: Analog Devices Inc.

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

Datasheet:

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

In Stock:: 2385

Quantity:: Add To Cart

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ADUM7440CRQZ Specifications

Packaging:
Bulk,Tube
Series:
iCoupler®
ProductStatus:
Active
Technology:
Magnetic Coupling
Type:
General Purpose
IsolatedPower:
No
NumberofChannels:
4
Inputs-Side1/Side2:
4/0
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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ADUM7440CRQZ information

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ADUM7440CRQZ Typical application Circuitry

ADUM7440CRQZ

The ADUM7440CRQZ is a quad-channel digital isolator with integrated DC-to-DC converter, designed by Analog Devices. It uses iCoupler® technology to provide both signal isolation and power isolation in a single device.

Application Scenario:

A typical application for the ADUM7440CRQZ is in an industrial PLC system where it provides isolation between sensitive control logic and high-voltage outputs to actuators or sensors. In such applications, it ensures that noise, transients, and high voltages from the actuator side do not affect the low-voltage control logic.

Parameter Features:

- Isolation Channels: The ADUM7440CRQZ offers four independent isolation channels, capable of high-speed digital signal isolation.

- Integrated DC-to-DC Converter: It includes an integrated, isolated DC-to-DC converter, providing isolated power by converting input voltage to an isolated output voltage.

- Data Rate: Supports data rates up to 25 Mbps, suitable for most industrial communication protocols.

- Isolation Voltage: Provides robust isolation with a voltage rating of 2.5 kVrms, ensuring safety and reliability in high-voltage applications.

Circuit Connection Example:

When integrating the ADUM7440CRQZ into an industrial PLC system, the following detailed connection strategy should be considered:

- Power Supply Connections: Connect the VDD1 pin of the ADUM7440CRQZ to a +3.3V or +5V non-isolated power supply, depending on the system requirements. This powers the primary side of the device. The ground pin, GND1, should be connected to the system ground. For the isolated power supply, connect the VDD2 pin to the secondary side's isolated power rail, which is generated internally by the ADUM7440CRQZ's DC-to-DC converter. The corresponding ground pin, GND2, serves as the isolated ground reference.

- Digital Signal Isolation: For signal isolation, connect the input signals from the control logic to the input pins (IN1 to IN4) on the primary side of the ADUM7440CRQZ. The corresponding output pins on the secondary side (OUT1 to OUT4) will then connect to the input interface of the actuators or sensors, providing isolated signal transmission.

- Configuration and Grounding: Ensure that the isolated ground (GND2) is properly isolated from the non-isolated ground (GND1) to maintain isolation integrity. No direct connection should exist between these ground planes; isolation must be ensured through the ADUM7440CRQZ.

- Decoupling Capacitors: Place decoupling capacitors close to both VDD1 and VDD2 pins to stabilize the power supply and minimize noise. A typical value might be 0.1 µF for high-frequency decoupling.

Design Considerations:

- Layout for Optimal Isolation: Pay careful attention to the PCB layout to maximize isolation effectiveness. Keep the high-voltage and low-voltage sides physically separated on the PCB, and consider routing to minimize capacitive coupling.

- Thermal Management: Although the ADUM7440CRQZ is designed for efficient operation, assess the thermal environment to ensure the device operates within its specified temperature range, especially in high-power applications.

- EMI Considerations: Implement filtering and shielding techniques to mitigate potential EMI issues, ensuring reliable operation in electrically noisy industrial environments.

- Safety and Regulatory Compliance: When designing with the ADUM7440CRQZ in safety-critical applications, consider applicable safety standards and regulatory requirements for isolation and ensure the design meets these specifications.

By meticulously implementing these guidelines, the ADUM7440CRQZ can be effectively integrated into industrial PLC systems, providing critical signal and power isolation to enhance system reliability and safety.

ADUM7440CRQZ FAQ

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6. What is the process for return or replacement of ADUM7440CRQZ?

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 ADUM7440CRQZ we delivered, we will accept the replacement or return of the ADUM7440CRQZ 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 ADUM7440CRQZ.

(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