10 Digital Isolator Manufacturers in 2023
This section provides an overview for digital isolators as well as their applications and principles. Also, please take a look at the list of 10 digital isolator manufacturers and their company rankings.
Table of Contents
What Is a Digital Isolator?
A digital isolator is a device that isolates digital signals.
They are used in various devices for industrial and medical applications. Insulation is very important in electrical circuits, preventing equipment from short-circuiting or being damaged.
In addition, having the necessary parts well insulated prevents current from flowing elsewhere, helping to eliminate noise and send normal signals.
Uses of Digital Isolators
Digital isolators are widely used in equipment that requires isolation.
For example, they are used in industrial machinery where there are large voltage differences among devices. If power supply sections that require large voltages or large motors and sections that operate with small voltages are located close together, isolation is required where the voltage difference is large. This is to prevent high voltages from being applied to parts that operate at low voltages and damaging them.
It is also used for medical equipment such as X-rays and AEDs. These medical devices are often used by hand, and this is to prevent current from flowing out and causing an electric shock.
Principle of Digital Isolators
There are two types of digital isolators: the magnetic isolation method and the capacitive isolation method.
- Magnetic Isolation Method
This is a digital isolator that use a coil. In transmitting and receiving, a coil is used to convert electric signals and magnetic energy. It can respond at high speed, but the faster the speed, the higher the current consumption. Also, the noise characteristics are inferior to the following capacitive isolation type. - Capacitive Isolation Method
This is a digital isolator using a capacitor. In transmitting and receiving, electrical signals are converted into charge and discharge by using capacitors. It has excellent noise characteristics and can be used at high speeds. However, the current consumption is independent of speed and becomes a disadvantage at low speeds.
Both methods have the advantage of long life and can be used at high speeds, and they have superior performance compared to previous isolators.
List of 10 Digital Isolator Manufacturers
*Including some distributors, etc.
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Texas Instruments (TI)
Digital isolators
Company Overview
Texas Instruments Incorporated was founded in 1930 and is headquartered in Dallas, Texas. Texas Instruments is a producer of high tech equipment for industrial, automotive, personal electronics, communications equipment industries. Texas Instruments designs, manufactures, and sells semiconductors to electronics designers and manufacturers in the United States and internationally. Texas Instruments operates in two segments: analog and embedded processing. The Analog segment offers power products, including battery-management solutions, DC/DC switching regulators, power switches, linear regulators, voltage references, and lighting products. The Embedded Processing segment offers microcontrollers that are used in fields such as electronic equipment and digital signal processors for mathematical computations.
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Renesas Electronics Corporation
Radiation Tolerant/Hardened Digital Isolators
Company Overview
Renesas Electronics Corporation was established in 2002 and is headquartered in Tokyo, Japan. Renesas is a global research, design, and manufacturer of semiconductors used in industries spanning automotive, consumer electronics, the internet of things, power & energy, and industrial sectors. Renesas manufactures both analog and digital products. Analog products include amplifiers, audio & video devices, data converters, PLC, and switches & multiplexers. Digital products include microcontrollers, memory components, sensors, wireless connectivity products, and others. Renesas also offers design resources such as kits, development tools, partner programs, and design tools.
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STMicroelectronics
Dual channel digital isolator
Company Overview
ST Micro Electronics is a global semiconductor company serving customers with innovations to have a positive impact on people's lives. Their product line is micro electronic systems, such as switches, controllers, sensors and drivers. The main selling point of ST Micro Electronics is its provision of sustainable products, and introducing their electronics to create a more sustainable world. The company, as well as providing the electronic devices, also provides software and support, ensuring that all fields are covered to provide a fully provide a supported and strong relationship with their customer base. ST Micro Electronics believe that technology plays a key role in helping to solve environmental and social challenges, which is why their semiconductor technologies start with their employees, their customers and partners.
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Skyworks Solutions, Inc.
Digital isolators
Company Overview
Founded in Irvine, CA in 1962, Skyworks Solutions, Inc. designs, develops, manufactures, and markets proprietary semiconductor products. Its product portfolio includes amplifiers, antenna tuners, attenuators, automotive tuners and digital radios, clocks and timings, circulators/isolators, DC/DC converters, demodulators, detectors, diodes, wireless analog system on chip products, directional couplers, diversity receive modules, filters, front-end modules, hybrids, LED drivers, low noise amplifiers, mixers, modulators, switches, synthesizers, timing devices, technical ceramics, voltage controlled oscillators/synthesizers, and voltage regulators. The company provides its products for the usage in aerospace, automotive, broadband, cellular infrastructure, connected home, entertainment and gaming, industrial, medical, military, smartphone, tablet, and wearable markets.
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HOPE Microelectronics CO., Ltd.
Digital Isolator
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Digital Isolator Manufacturer Ranking
*Including some distributors, etc.Number of Employees
- STMicroelectronics: 48,000
- Renesas Electronics Corporation: 20,962
- Vicor: 1,106
Newly Established Company
- Renesas Electronics Corporation: 2010 (13 years ago)
- Monolithic Power Systems (MPS): 1997 (26 years ago)
- Vicor: 1981 (42 years ago)
Company with a History
- Broadcom: 1961 (62 years ago)
- Analog Devices, Inc.: 1965 (58 years ago)
- Rhopoint Components Limited: 1975 (48 years ago)
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