The AD7403TRIZ-EP from Analog Devices Inc. is an enhanced product version of the AD7403 isolated sigma-delta modulator that delivers precision analog-to-digital conversion with galvanic isolation. This component is specifically designed to meet the stringent requirements of industrial and instrumentation applications, with a focus on reliability and high performance under extreme conditions.

The AD7403TRIZ-EP operates by converting an analog input signal into a high-speed, one-bit data stream with on-chip isolation. It employs iCoupler® technology to provide isolation between the input signal and the output interface, thus protecting the digital side from the harsh environments often found in industrial settings.

Key Features:

• Isolation: The device offers up to 5 kV RMS isolation for safety and functionality in high-voltage applications.
• Performance: With a 20 MHz external clock, the modulator achieves 16-bit resolution at a 250 kSPS data rate, ensuring accurate and rapid data conversion.
• Temperature Range: It operates effectively across an extended industrial temperature range from -40°C to +125°C.
• Enhanced Product (EP): The EP series ensures reliability through controlled manufacturing to support defense and aerospace applications.
• Integration: The modulator integrates a reference and a digital filter, simplifying design and reducing external component count.
• Interface: Serial peripheral interface (SPI) compatible for easy integration with most microprocessors and digital systems.

Applications:

• High-voltage industrial process controls
• Precision data acquisition systems
• Motor control feedback systems
• Isolated sensor interfaces
• Defense and aerospace electronics

The AD7403TRIZ-EP is available in a compact 16-lead SOIC package with an enhanced product marking for traceability. Its robust design and high isolation capabilities make it an ideal choice for demanding applications that require precise measurement and control.