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ISO224 Reinforced Isolation Amplifier Key Features and Benefits

By leveraging TI’s capacitive isolation technology , the isolated amplifier has an extremely long operating life while operating at 50% higher voltage than the isolation industry standard, with a common-mode transient immunity (CMTI) of up to 80 kV/µs, and reliable operation over the extended industrial temperature range of -55°C to +125°C.

The ISO224 precision isolation amplifier can achieve more accurate detection of ±10-V voltage signals and is currently widely used in various industrial applications. Compared with similar competing devices, it has 25% higher nonlinearity, 8 times lower gain error, lower drift offset, and faster system response.

The ISO224 package is 60% smaller than the older ISO12x amplifiers, helping engineers reduce board space. With a 5-V input, its output supports direct connection to analog-to-digital converters. In addition, the ISO224's high-side single supply enables integrated voltage sensing, simplifying design and system-level diagnostics.

ISO1042 Isolated CAN Transceiver Key Features and Benefits

• Industry's highest operating voltage of 1kVrms, which can extend device life and improve system reliability

• Longer device life helps optimize protection of low voltage circuits – reducing plant downtime while lowering operating costs
• Manufactured and fully tested in a controlled environment to ensure the highest quality isolation products

• CAN FD performance increased to 5Mbps

• Short loop delay of 215ns (max) improves communications throughput while maintaining signal integrity in industrial and automotive systems.

• Robust electromagnetic compatibility (EMC) compliance to IEC TS62228 industry standard for reliable system operation

• 85 kV/us (minimum) maximum level CMTI with high ESD protection of +/-8 kV contact IEC ESD

• Bus fault protection up to 70V helps prevent device damage during high voltage short circuits
• Industry’s highest short-to-DC margin makes it widely applicable to 12V, 24V, 48V battery or power systems

The two new products are characterized by very high operating voltage. The operating voltage and withstand voltage level of silicon dioxide isolation are related to the material itself and the width of the silicon dioxide isolation barrier. Can both be 1.5kV? Speaking of 48V, in addition to communications and electric vehicles, many customers are now optimistic about the data center market. Is TI paying attention to this market?

Neel Seshan

Regarding the first question, TI can indeed achieve higher isolation voltage levels, so when choosing this technology level, it will be decided based on the actual needs of different markets. For example, some devices can achieve 1.5kV, and some devices are 1kV. This is the voltage level achieved based on current market technology requirements.

TI has some other devices with higher isolation voltage levels, such as the ISO78 series. In terms of design, the thickness of silicon dioxide is increased, and the distance between the two DAIs is increased, so that a higher isolation voltage level can be achieved to meet the needs of different market segments. Therefore, this conference only explains two examples in applications. In fact, TI is also paying attention to the needs of isolation applications in many other markets and market segments. Isolation is required as long as communication is required between two different voltage levels. For example, in data centers, medical applications, other industrial and automotive application scenarios, as long as communication between systems of different voltage levels is required, there are corresponding devices between TI isolation product series to meet different needs.

We have concluded in the ISO224 isolation life prediction that the product can be used for 135 years. So is there a big difference in the performance of the product in the first year and the 135th year of use?

Neel Seshan

This is a very interesting question. First of all, this test is based on the evaluation test of industrial standards. It is difficult to say what the performance of this device will be 135 years later and today. Each TI device is produced according to a strict quality control process. All devices are manufactured and tested in their own factories, so TI's quality process can ensure the consistency of the isolation device materials and manufacturing processes. From another perspective, TI isolation devices have been used in the market for quite a long time, and no differences or attenuation in device performance have been observed over time.

The importance of isolation technology is self-evident. Could you please introduce the overall status of isolation technology and its future development trends?

Neel Seshan

Even at this stage, there are still many new requirements for isolation technology. For example, in the past many years, there was no isolation in automotive electronics. With the rapid development of new energy vehicles, this industry has many isolation requirements, and isolation is required between any subsystems working in different voltage domains. The emergence of new energy vehicles has brought about automotive battery management systems (BMS), electric vehicle engine drives, OBC on-board battery chargers, and DC/DC on-board energy battery packs, and DC/DC converters that convert high voltage to low voltage. These automotive components have put forward new requirements for isolation devices. This shows that, first, the market application scenarios require more isolation products, and second, isolation technology itself is constantly putting forward new requirements, such as smaller size, higher integration, higher precision, higher isolation voltage and other detailed performance parameters are also constantly developing. From these two perspectives, isolation technology itself should continue to move forward with market demand.

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