Analog Devices AD7401AYRWZ-RL Isolated Sigma-Delta Modulator

The AD7401AYRWZ-RL from Analog Devices Inc. is a high-performance, second-order, isolated sigma-delta modulator that converts an analog input signal into a high-speed, one-bit data stream. This component is specifically designed for the accurate digitization of high-frequency, wide dynamic range signals. It is particularly well-suited for applications in industrial data acquisition systems, such as motor control, power quality monitoring, and process control where reliable isolation is essential.

This modulator operates over a wide supply voltage range and features a differential input, capable of interfacing with a variety of sensors and transducers. The AD7401AYRWZ-RL provides a robust isolation barrier capable of withstanding voltages up to 5 kV RMS, which ensures that the data and control paths across the isolation barrier are protected from high common-mode transient voltages.

The device incorporates Analog Devices' iCoupler® technology, which combines high-speed CMOS and monolithic air-core transformer technology, eliminating the need for bulky optocouplers or other discrete isolation components. This technology enables the AD7401AYRWZ-RL to offer a compact, integrated solution that simplifies design, reduces board space, and enhances overall system reliability.

Key features of the AD7401AYRWZ-RL include:

• Second-order sigma-delta modulator with a one-bit data stream output
• Wide analog input range suitable for direct sensor interfacing
• High isolation voltage rating (5 kV RMS)
• High common-mode transient immunity
• Integrated iCoupler isolation technology
• Wide operating temperature range
• Compact 16-lead SOIC package with increased creepage

With its high level of integration and performance, the AD7401AYRWZ-RL is an ideal choice for designers looking to improve system performance and reliability in harsh electrical environments. The part is also available in a reel (RL) format, which facilitates efficient handling and manufacturing for high-volume production.

For detailed specifications, application notes, and support resources, designers are encouraged to visit the Analog Devices website or contact their local Analog Devices sales representative.