Digital Isolator Market

Global Digital Isolator Market Forecast
The Digital Isolator Market is expected to grow from USD 2.3 Billion in 2026 to USD 4 Billion by 2033, reflecting strong industry expansion and registering a CAGR of 8.4% during the forecast period from 2026 to 2033.

Digital Isolator Market: Overview

The market size for digital isolators was USD 1,729.4 million in 2021, and it is projected to grow at a CAGR of 8.6 percent during the forecast period. The digital isolators market is expected to grow due to an increasing trend of replacing conventional optocouplers with digital isolators and the growing popularity of noise-free devices and electronics. Further, the market growth is expected to be driven by the increasing use of digital isolators in industrial applications, including field uses, motor controls, and power supplies. Furthermore, stringent battery safety requirements for automobiles and renewable energy sources are driving the demand for digital isolators over the next few years.

Digitized signals are transported through a digital isolator that works only with digital signals to cross galvanic isolation boundaries. With a digital isolator, you can improve data rates, integrate multiple isolation channels, reduce costs, decrease external components, and increase dependability. This enhanced digital isolator helps ensure the reliability of industrial systems by providing excellent efficiency and minimal emissions. Many companies, including Texas Instruments, offer this enhanced digital isolator. It reduces board space and simplifies system design costs by integrating separate power and data up to 100 Mbps. Several trends are driving the digital isolator market, including increased demand for noise-free electronics, use of renewable energy sources, replacement of optocouplers, and higher altitude applications of digital isolators. When an electronic device or a semiconductor integrated circuit isolates a system from unwanted ac, dc, and signal currents, they enable power transfer and signal transmission.

Further, the availability of digital isolators as an alternative to optocouplers fuels market growth. However, the inability of digital isolators to transmit low-frequency signals without external modulators is expected to restrain the market growth. Furthermore, the high costs of digital isolators may also hinder the growth of digital isolators. It is important to note that several players are involved in the digital isolators market, and their growth strategies include product launches, product development, acquisitions, and expansions. As an example, Texas Instruments has introduced ISO776x-Q1 High Speed, Robust EMC, and 6-channel digital isolators with 5000 VRMS and 3000-VRMS isolation ratings according to UL 1577. CMOS or LVCMOS digital I/O can be isolated with ISO776x-Q1 devices, which provide high electromagnetic immunity and low electromagnetic emissions at low power consumption.

Digital Isolator Market: COVID-19 Impact

A major downfall affected the global economy due to the COVID-19 pandemic. Businesses of all sizes were affected, irrespective of their size. Also, governments around the world imposed lockdowns on their nations to prevent the pandemic's spread, resulting in temporary industrial shutdowns. People across the globe faced a shortage of various goods and services due to the industrial closure. Further, due to government-imposed travel restrictions, the worldwide supply chain was also severely disrupted, resulting in significant losses for various industries.

Digital Isolator Market: Drivers

Safety Requirements for Batteries in Automobiles to Drive Market Growth

The automotive industry has announced plans to introduce battery electric cars (BEVs), plug-in hybrid electric cars (PHEVs), and full hybrid electric cars (FHEVs). BEVs offer quiet, emission-free transport. The new electronic drivetrain and battery systems require high-wattage power electronics as automotive design moves toward electrification. In designing solutions for automotive xEV applications, designers may have to overcome the challenge of communicating digital data between high voltage and low voltage battery domain electronics. Battery current measurements, battery cell voltage monitoring, motor control, and high voltage contactor monitoring face this challenge. A semiconductor-based galvanic isolation system is required to connect a low-voltage digital controller to a high-voltage electronic system in a modern electric vehicle. With digital isolators, the designer can significantly save on both current consumption and PCB space.

Increasing Number of Safety Standards for Industrial Automation Driving Market Growth

Incorporating electronic controls into multiple industrial systems over networks offers several benefits and challenges to machine operators. Automated machine safety offers great protection to machine operators. Manufacturers and end users are changing their approaches in the current era of machine safety standards. They prefer a low-cost control system, readily available machine components, decreased machine downtime, etc. The challenge for system integrators is to combine high-voltage, high-current machines with low-voltage, low-current data acquisition systems and networked communication systems. Digital isolators with machines resolve this challenge since they isolate different functional sections of electrical systems so that current does not flow directly between them. Different electrical systems are powered by capacitive, inductive, and a variety of other techniques. The purpose of digital isolators in high-voltage equipment is to isolate signals and shift levels so that different circuits run properly. They also protect the users from electric shock. The Si838x PLC input isolator is one of Silicon Labs' products, and the Si834x isolated switch is another. Silicon Labs is a leading manufacturer of digital isolators for industrial automation. One of its SSR replacement systems is the Si875x. Silicon Labs produces digital isolators that are ideal for industrial automation.

Digital Isolator Market: Restraints

High Costs Compared to Optocouplers to Hamper Market Growth

Compared to conventional optocouplers, digital isolators perform better regarding propagation delays, data rate, and noise reduction. However, digital isolators are more expensive. Optocouplers are commonly used as low-cost isolation solutions when digital signals are transmitted slowly. Digital isolators are offered at low costs by several companies, but they are not useful for PV inverters since they are fabricated with conventional semiconductor processing technologies in order to achieve channel counts and functional integration. Digital isolators that use complementary metal-oxide-semiconductor (CMOS) process technology are gaining popularity among designers due to the high cost of alternative isolation technologies. It enables designers to design low-cost, compact, reliable, and high-performance isolated circuits that use less power than optocouplers. In addition to their type and ability to pass current, digital isolators are priced according to the application for which they will be used.

Digital Isolator Market: Segment Overview

Giant Magnetoresistive to Dominate Market due to its Superior Accuracy

As a result of their superior sensitivity and accuracy, digital isolators based on GMR isolation technology are growing rapidly in this segment. In addition to having a fast switching speed of up to 150 Mbps, the GMR isolation technology also has a low propagation delay of 10 to 15 nanoseconds. The magnetoresistive-based digital isolators are becoming increasingly popular due to their long shelf lives and the materials they are made from.

With Increased Demand for Industrial Machinery, Industrial Category to Dominate Market

In the forecast period, the industrial segment held the largest market share, and it is anticipated that it will continue to rule the market during the forecast period. Industrial machinery must include digital isolators to protect users and industrial equipment from ground loops and discrepancies, as well as noise and voltage fluctuations. The use of these isolators also keeps industrial machinery and its operators safe. The digital isolator market for the industrial vertical is growing as industrial automation solutions and systems are being deployed to reduce indirect industrial expenses and increase operating profitability. A digital isolator protects these electric drivers from a power shock when electric drivers power them.

Digital Isolator Market: Regional Landscape

Asia Pacific to Dominate Market due to Presence of Major Electrical Device Manufacturers

Over the forecast period, it is anticipated that the Asia Pacific market will account for the largest revenue share. Additionally, digital isolators are widely used in gate drivers and ADC converters in this region for a variety of reasons, including the presence of a number of major electrical equipment and device manufacturers. China, a developing and technologically advanced country, is a major contributor to the growth of the digital isolator market in the Asia Pacific. Many EV manufacturers operate in the Asia Pacific region, primarily in China, South Korea, and Japan. During the forecast period, the digital isolator market in this region is expected to grow significantly due to its futuristic view of the electrification of zero-emission vehicles. Several major market players have headquarters in this region, including ROHM Semiconductor, Murata Manufacturing, Advantech, and MORNSUN Guangzhou Science & Technology Company.

The North American market is anticipated to experience stable revenue growth throughout the forecast period due to growing safety standards in industrial automation, technological advancements in medical imaging devices, and the electrification of vehicles. North America is also one of the key markets for digital isolators with several players, such as Silicon Labs (now part of Skyworks) and Texas Instruments. This region is home to some of the largest market players, including Analog Devices, Maxim Integrated, Vicor Corporation, NVE Corporation, and IXYS Corporation. In order to increase efficiency and reduce power consumption and propagation delays, these players have begun integrating isolation into their gate drivers. A trade war between the United States and China might offer opportunities for Mexico, especially in sectors where Mexico and China share comparative advantages, such as electronics manufacturing. The impact on digital isolators will also be similar.

Global Digital Isolator Market: Competitive Landscape

In March 2022, A global technology leader, Hitachi Energy, collaborated with NXP Semiconductors to expedite the adoption of silicon carbide power semiconductor modules. Moreover, the project aimed to provide more reliable, efficient, and functionally safe SiC MOSFETs. Moreover, in December 2021, As part of the partnership, NXP Semiconductors will provide its comprehensive portfolio of automotive technologies to Foxconn Industrial Internet, a Foxconn subsidy. The partnership aims to accelerate the transformation of cars into ultimate edge devices.

Few of the players in the digital isolator market include 

• Texas Instruments Incorporated
• Analog Devices, Inc.
• Skyworks Solutions, Inc.
• Infineon Technologies AG
• NVE Corporation
• ROHM Co., Ltd.
• Broadcom
• Vicor Corporation
• STMicroelectronics
• Renesas Electronics Corporation

Market Segmentation

By Data Rate

• Up to 25 Mbps
• 25 Mbps to 75 Mbps
• Above 75 Mbps

By Channel

• 2 Channels
• 4 Channels
• 6 Channels
• 8 Channels
• Others

By Isolation Type

• Capacitive Coupling
• Magnetic Coupling
• Giant Magnetoresistive (GMR)

By Application

• Gate Drivers
• DC/DC Converters
• ADCs
• USB & Other Communication Interfaces
• CAN Isolation
• Others

By End-Use Industry

• Industrial
• Automotive
• Healthcare
• Telecommunications
• Aerospace & Defense
• Energy & Power
• Others

By Region

• North America
• Europe
• Asia Pacific
• Latin America
• Middle East & Africa