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Introduction

The AD7401AYRWZ is an isolated second-order sigma-δ modulator based on iCoupler® technology designed for high-precision signal acquisition and anti-interference applications in harsh environments such as industrial control and energy management ‌. Its core function is to convert the analog signal into a high-speed 1-bit data stream, achieve electrical isolation of input and output through digital isolation technology, and effectively suppress common mode noise ‌. Available in a 16-pin SOIC package, the AD7401AYRWZ supports wide temperature operation from -40°C to +125°C for industrial-grade reliability ‌.

AD7401AYRWZ core performance

16-bit loss-free resolution, INL (integral nonlinearity) typical value of ±2 LSB, input bandwidth DC to 50kHz, AD7401AYRWZ supports ±200mV differential signal (full scale ±320mV) ‌.

The AD7401AYRWZ has a built-in low drift reference voltage (1 μV/°C) to reduce external component dependency ‌.

Integrated with ADI iCoupler® technology, the AD7401AYRWZ supports 5,000 Vrms isolated voltage withstand (UL 1577 certified) to suppress common mode interference in high noise scenarios such as motor control ‌.

Digital interface compatible with 3V/5V power supply, SPI communication rate up to 20MHz, suitable for multiple types of controllers ‌.

Typical power consumption 17mA (5V power supply), the AD7401AYRWZ has a built-in modulator and digital filter, no external sample-and-hold circuit ‌.

Supports continuous sampling mode, data stream rate up to 20MHz, AD7401AYRWZ is suitable for real-time signal processing ‌.

Application scenario

1. Industrial motor control ‌ :

The AD7401AYRWZ is used for AC motor phase current detection to solve signal distortion caused by PWM noise and improve the stability of the control system ‌.

‌2. Energy management system ‌

The AD7401AYRWZ implements high-precision current/voltage sampling in PV inverters and battery management systems (BMS), and supports ±250mV small signal detection ‌.

3. ‌ Medical Treatment and equipment ‌

Multi-channel physiological signal acquisition (e.g. ECG, EMG), the AD7401AYRWZ utilizes isolation features for patient safety ‌.

Precision sensor interface, AD7401AYRWZ for pressure, temperature and other analog digitization ‌.

4, ‌ power monitoring and protection ‌

For shunt current monitoring, smart meters and other scenarios, the AD7401AYRWZ reconstructs the original signal through digital filtering to ensure the measurement accuracy ‌.

In conclusion, the AD7401AYRWZ is the preferred industrial ADC for its high integration (built-in reference, isolation module), low power consumption (17mA@5V), and strong anti-jamming capability (iCoupler® technology) ‌. Its 16-bit lost-free accuracy and 20MHz data rate balance the need for performance and real-time performance, while wide temperature support (-40°C to +125°C) further extends its application potential in harsh environments ‌. Compared with traditional solutions, the AD7401AYRWZ significantly reduces system complexity and is ideal for motor control, energy monitoring and other fields ‌.

For purchase and quotation, please contact Shenzhen Mingjiada Electronics Co., LTD. (www.hkmjd.com)