AD7401YRW-REEL

ADCs/DACs - Special Purpose Overview

The AD7401YRW-REEL is a 16-bit isolated Sigma-Delta modulator manufactured by Analog Devices Inc. It utilizes iCoupler technology to provide on-chip digital isolation, converting analog input signals into a high-speed 1-bit data stream. The device operates with a single 5 V supply and accepts differential inputs of ±250 mV (full scale ±320 mV). Key electrical parameters include a maximum clock rate of 20 MHz, typical INL of ±2 LSB at 16 bits, and power dissipation of 100 mW. It features a serial interface powered by 5 V or 3.3 V and is housed in a 16-lead SOIC package.

ADCs/DACs - Special Purpose Feature Summary

• Integrated iCoupler digital isolation for superior performance over traditional optocouplers
• Built-in voltage reference eliminates external component requirements
• Continuous sampling architecture removes the need for external sample-and-hold circuits
• Low power consumption of 100 mW with operation from -40°C to +105°C

ADCs/DACs - Special Purpose Applications

• AC motor control systems
• Shunt current monitoring
• Isolated data acquisition systems
• Replacement for discrete ADC and optocoupler solutions

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific suffix 'REEL' against the manufacturer's official documentation to confirm tape-and-reel packaging specifications. Ensure compatibility with the EVAL-AD7401EDZ evaluation board if system testing is required. Confirm humidity sensitivity handling procedures as indicated in the datasheet.

ADCs/DACs - Special Purpose Selection Notes

Select this component when high-density digital isolation is required within a single IC footprint. The built-in reference simplifies design compared to non-integrated isolators. Verify that the ±250 mV input range aligns with the sensor output; external attenuation may be necessary for higher voltage signals.

ADCs/DACs - Special Purpose Part Context

This part belongs to the AD7401 family of isolated Sigma-Delta modulators. It serves as a direct replacement for older discrete isolation architectures, offering improved reliability through monolithic integration of the modulator and digital isolator.

ADCs/DACs - Special Purpose Replacement Considerations

The AD7400A is a related variant featuring an internal clock generator, whereas the AD7401YRW requires an external MCLKIN. Cross-reference pinouts carefully when substituting with other isolated ADC families.