ISO7321CDR: Applications, Features and Datasheet

29 April 2024
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Product Overview

Part Number: ISO7321CDR

Manufacturer: Texas Instruments

Description: DGTL ISO 3KV 2CH GEN PURP 8SOIC Digital Isolators with low power consumption and robust EMC design

Lead Time: Can Ship Immediately

Datasheet: Datasheet PDF

Category: Signal Isolation Devices/Digital Isolators

Number of Lines: 8

Short Description

Digital isolators, such as the ISO7321CDR from Texas Instruments, provide high-performance isolation. Two independent circuits can be isolated and signal transmission can be achieved between them using this device. Applications that require robust isolation can benefit from its enhanced safety and noise immunity. Industrial automation, automotive, and medical equipment benefit greatly from the ISO7321CDR's integrated isolation barrier, which eliminates ground loops, spikes, and electromagnetic interference (EMI).

 

The ISO7321CDR ensures seamless communication between isolated circuits due to its wide operating voltage range and high data transmission rates. The low power consumption and small footprint further enhance the flexibility of its implementation into battery-powered applications and space-constrained designs. Achieving exceptional performance and reliability, the ISO7321CDR meets the stringent requirements of modern electronic systems, including motor control, isolated power supplies, and isolated interface circuits.

 

ISO7321CDR

Product Technical Specifications

Product Attribute

Attribute Value

Manufacturer

Texas Instruments

Product Category

Digital Isolators

RoHS

Chipspulse_RoHS.png

Product

Digital Isolators

Forward Channels

1 Channel

Data Rate

25 Mb/s

Isolation Type

Capacitive Coupling

Isolation Voltage

3 kVrms

Mounting Style

SMD/SMT

Pd - Power Dissipation

56 mW

Product Type

Digital Isolators

Reverse Channels

1 Channel

Polarity

Bidirectional

Number Of Channels

2 Channel

Package / Case

SOIC-8

Minimum Operating Temperature

- 40 C

Maximum Operating Temperature

+ 125 C

Supply Voltage - Min

3 V

Supply Voltage - Max

5.5 V

Operating Supply Current

4.9 mA

Propagation Delay Time

32 ns

Shutdown

No Shutdown

Moisture Sensitive

Yes

Series

ISO7321C

Packaging

Cut Tape or Reel

Brand

Texas Instruments

Factory Pack Quantity

2500

Subcategory

Interface ICs

Unit Weight

0.019048 oz

ISO7321CDR Applications

Due to its robust isolation capability and reliable performance, Texas Instruments' ISO7321CDR digital isolator component finds diverse applications across various industries. Now let's take a closer look at this component's detailed applications:

 

Industrial Automation: Galvanic isolation is provided by the ISO7321CDR in industrial automation systems. Even in harsh industrial environments with high noise levels and voltage transients, it ensures safe, reliable communication among sensors, actuators, microcontrollers, and PLCs. Keeping sensitive equipment isolated prevents damage caused by ground loops and voltage spikes.

 

Automotive Electronics: Various vehicle applications require robust isolation solutions, such as the engine control unit (ECU), battery management system, and electric power steering. Providing electrical isolation between a variety of automotive subsystems, ISO7321CDR prevents electromagnetic interference and electrical faults. In automotive networks, it is also capable of real-time communications due to its high-speed data transmission capabilities.

 

Medical Equipment: In order to comply with safety standards and protect patients, medical devices and equipment are designed with patient safety in mind. Infusion pumps, patient monitors, and diagnostic equipment can all communicate safely and securely using ISO7321CDR. Signal integrity and noise immunity are maintained with this standard. Medical data acquisition and processing are more accurate and reliable when electric shocks are minimized.

 

Renewable Energy Systems: The control electronics of renewable energy systems must often be isolated from sensitive components. Energy storage devices, wind turbines, and solar inverters are some of these systems. Control circuitry and power electronics communicate effectively and efficiently through ISO7321CDR, ensuring a safer and more reliable operation.

 

Instrumentation and Measurement: High common-mode voltages and noisy environments require precision measurement and instrumentation systems. In applications such as data acquisition systems, testing and measurement equipment, and industrial process control, ISO7321CDR isolates measurement circuits, microcontrollers, and communication interfaces, resulting in accurate and reliable data acquisition and transmission.

 

Isolated Power Supplies: As a result of isolating the primary and secondary sides of the power supply, ISO7321CDRs provide added safety and prevent electrical hazards. Applications such as telecommunications, networking, and batteries can utilize isolated DC-DC converters and power distribution systems.

Features

Digital isolators such as the ISO7321CDR are manufactured by Texas Instruments, and are known for their advanced functionality and reliability. Detailed descriptions of each feature follow:

 

Dual-Channel Isolation: Two digital signals or data streams can be isolated independently using the ISO7321CDR. With this feature, different parts of the circuit are kept isolated from each other while ensuring reliable signal transmission across them.

 

High-Speed Data Transmission: High-speed digital interfaces and real-time communication capabilities make the ISO7321CDR an excellent option for applications requiring high-speed digital interfaces and real-time communication. High data rates can be supported. This ensures minimal signal distortion even at high data rates. As a result, isolated circuits are able to communicate seamlessly.

 

Wide Operating Voltage Range: This device is compatible with a wide range of voltage levels, making it a good choice for electronic systems requiring a wide voltage range. A voltage level shift circuit is not required since the component's versatility enables it to be incorporated into a wide range of applications.

 

Low Power Consumption: Battery power is used in this device. Because of the low power consumption, the ISO7321CDR is suitable for low power applications. During standby or idle modes, the system's low quiescent current minimizes power consumption and prolongs battery life.

 

Robust Isolation Barrier: Input and output channels of the ISO7321CDR are isolated galvanically with a robust isolation barrier. By blocking electromagnetic interference (EMI), ground loops, voltage spikes, and ground loops from affecting isolated circuits, this isolation barrier effectively blocks electrical signals.

 

High Noise Immunity: In noisy environments prone to electrical interference and disturbances, the ISO7321CDR ensures reliable signal transmission. By eliminating external noise sources, reducing errors, and transmitting data accurately, it minimizes external noise sources.

 

Wide Temperature Range: In harsh environments, the ISO7321CDR performs reliably over a wide temperature range. Industrial, automotive, and outdoor applications require reliable performance and reliability, thanks to its rugged construction and temperature tolerance.

 

Compact Package: With its compact package, the ISO7321CDR can be integrated into electronic designs with limited board space. Compact and densely populated PCB layouts are ideal for using it due to its small footprint and surface-mountable form factor, allowing designers to maximize space utilization.

ISO7321CDR Alternative COmponent

 

Part Number

ISO7321CDR

NB3N551DG

TC646BEOA

PIC12C509A-04I/SN

PIC12C509A-04/SM

Manufacturer

Texas Instruments

ON Semiconductor

Microchip Technology

Microchip Technology

Microchip Technology

Package / Case

8-SOIC (0.154, 3.90mm Width)

8-SOIC (0.154, 3.90mm Width)

8-SOIC (0.154, 3.90mm Width)

8-SOIC (0.154, 3.90mm Width)

8-SOIC (0.209, 5.30mm Width)

Number of Pins

8

8

8

8

8

Supply Voltage

3.3 V

3.3 V

5 V

5 V

5 V

Number of Terminations

8

8

8

8

8

Pbfree Code

yes

yes

yes

yes

yes

REACH SVHC

No SVHC

No SVHC

No SVHC

No SVHC

No SVHC

Lead Free

Lead Free

Lead Free

Lead Free

Lead Free

Lead Free

Terminal Form

GULL WING

GULL WING

GULL WING

GULL WING

GULL WING

Final Verdict

When it comes to reliability, versatility, and performance, Texas Instruments' ISO7321CDR digital isolator component is unmatched. Due to its dual channel isolation, high-speed data transmission, wide operating voltage range, and many other features, the ISO7321CDR is a comprehensive solution for reliable signal transmission and isolation.

 

A reliable and efficient power supply, ISO7321CDR provides consistent performance in applications such as industrial automation, automotive electronics, medical equipment, renewable energy systems, and instrumentation. Engineers and designers who seek reliable isolation solutions for their electronic designs can rely on its robust construction and adherence to strict quality standards.

 

Digital isolators like the ISO7321CDR are made from cutting-edge technology and engineering excellence, helping businesses develop innovative ideas, increase safety, and boost efficiency. Engineers seeking to address modern electronic design challenges can rely on its proven track record of performance and reliability.

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