What is the Additional Feature ?

Name: ISO7721DWR
Brand: Texas Instruments
SKU: ISO7721DWR
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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Texas Instruments ISO7721DWR

Part No.:: ISO7721DWR

Manufacturer:: Texas Instruments

Package:: 16-SOIC (0.295, 7.50mm Width)

Datasheet:: ISO7721DWR.pdf

Description:: DGTL ISO 5000VRMS 2CH GP 16SOIC

In Stock:: 3463

Quantity:: Add To Cart

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ISO7721DWR Specifications

Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
-
ProductStatus:
Active
Technology:
Capacitive Coupling
Type:
General Purpose
IsolatedPower:
No
NumberofChannels:
2
Inputs-Side1/Side2:
1/1
ChannelType:
Unidirectional
Voltage-Isolation:
5000Vrms
CommonModeTransientImmunity(Min):
85kV/µs
DataRate:
100Mbps
PropagationDelaytpLH/tpHL(Max):
16ns, 16ns
PulseWidthDistortion(Max):
4.9ns
Rise/FallTime(Typ):
1.8ns, 1.9ns
Voltage-Supply:
2.25V ~ 5.5V
OperatingTemperature:
-55°C ~ 125°C
MountingType:
Surface Mount

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ISO7721DWR information

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ISO7721DWR Typical application Circuitry

For seamless integration of the ISO7721DWR, a highly-reliable digital isolator by Texas Instruments, into your circuit design, precise connectivity to its pins is essential. Below is a specialized guide that outlines the connection methodology for the ISO7721DWR.

1. Voltage Source Attachments: Take Pin 1 (VCC1) and link it with your power source, either a 3.3V or 5V supply, on the input side. Similarly, attach Pin 8 (VCC2) to a 3.3V or 5V supply on the output side. Ensure that GND1 (Pin 4) and GND2 (Pin 5) are correctly tethered to their respective ground planes.

2. Signal Input Channels: ISO7721DWR features two signal input channels. Connect your digital signal lines to IN1 (Pin 2) and IN2 (Pin 3), ensuring that they meet the voltage levels specified in the datasheet.

3. Isolated Signal Outputs: On the output side, the ISO7721DWR will produce isolated replicas of your input signals. Connect OUT1 (Pin 6) and OUT2 (Pin 7) to the components requiring isolated signals in your circuit.

4. Decoupling Strategies: Put decoupling capacitors of 0.1 F between VCC1 and GND1 and VCC2 and GND2 respectively. Locate these capacitors as close as possible to the ISO7721DWR to mitigate any potential noise or stability issues.

5. Enable and Disable Feature: If your version of the ISO7721DWR comes with an Enable/Disable feature, typically indicated as EN, adhere to the datasheet specifications for implementing this feature.

6. Signal Routing: Make an effort to minimize trace lengths between the digital signals and the ISO7721DWR, thus limiting potential noise interference and ensuring signal integrity.

7. Ground Planes: Even though the grounds GND1 and GND2 are isolated from each other, keeping them separate in your layout will contribute to more effective noise isolation.

8. Test Points: Build in test points for the digital signals and the power supplies on both sides of the ISO7721DWR for convenient troubleshooting.

9. Overvoltage Protection: If you suspect that the digital signals could go beyond the recommended levels, incorporate current-limiting resistors or voltage clamps.

10. Functional Testing: After your circuit assembly, activate the device and verify that the ISO7721DWR is properly isolating signals. Be sure to compare the output against the input to ensure accuracy.

To sum up, correct implementation of the ISO7721DWR involves meticulous attention to each pin, guaranteeing effective digital signal isolation. As a final step, always cross-verify the connections with the ISO7721DWR datasheet to ensure optimal performance and safety.

ISO7721DWR FAQ

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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 ISO7721DWR.

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

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(1)Inform us within 90 days

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