Digital isolators have two primary functions, to provide isolation and to transmit information across the isolation barrier. Part one looked at the various specifications related to voltage and isolation performance. Part two details key specifications related to the transmission of information. Common‐mode transient immunity (CMTI) is one of three key specifications of digital isolators. The […]
Isolators
What are the key specifications of digital isolators? part 1
Digital isolators have two primary functions: to provide isolation and to transmit information across the isolation barrier. This first of two FAQs on digital isolator specifications examines voltage and isolation specifications. Part two details key specifications related to information transmission. Two basic voltage specs are: Working voltage (VIOWM) is the maximum rms, or corresponding dc […]
What is a capacitive digital isolator?
Capacitive digital isolators comprise two digital CMOS dies connected with a capacitive isolation barrier. The barrier provides galvanic isolation to meet safety regulations, reduce noise from ground loops, and connect interface communication boards or subcircuits that operate with different supply voltages. They are used in power converters and motor drives, electric vehicles (EVs), consumer devices, […]
Rad-hard PoL buck regulator, digital isolators, 100-V GaN FETs target satellite apps
Renesas Electronics Corporation launched a new line of plastic-packaged radiation-hardened (rad-hard) devices for satellite power management systems. The four new devices include the ISL71001SLHM/SEHM point of load (POL) buck regulator, ISL71610SLHM, and ISL71710SLHM digital isolators, and the ISL73033SLHM 100V GaN FET and integrated low-side driver. Combining rad-hard assurance levels with the board area savings and […]
Digital isolators provides four channels at 2.5 Gbps
Analog Devices, Inc. introduced the first in a new series of iCoupler digital isolators that offers a total bandwidth of 10 Gigabits per second. The ADN4624 digital isolator provides four channels at 2.5Gbps, allowing data to transfer seamlessly in the electrical domain and enabling new system architectures in digital health, instrumentation, and smart industry. The new […]
Optocouplers, Part 1: Principles and usefulness
The optocoupler — also called an optoisolator — is among the most useful, versatile, problem-solving components available to the design engineer. This small non-monolithic device does one thing and does it well, with minimal complications in most cases and no software. This FAQ will look at the operation principles, key parameters, and applications of this […]
