AD1877JRZ

Overview

The AD1877JRZ is a stereo, 16-bit oversampling analog-to-digital converter (ADC) based on Sigma-Delta technology. It operates from a single 5 V power supply and features two single-ended analog inputs with an internal voltage reference. The device utilizes a fourth-order modulator and a three-stage linear-phase decimation filter to achieve a dynamic range of 92 dB and a signal-to-(THD+N) ratio of 90 dB. It accepts input clocks of 256×FS or 384×FS and provides a flexible serial output interface compatible with I2S formats.

Feature Summary

• 16-bit resolution with 92 dB typical dynamic range
• Single 5 V power supply operation
• On-chip voltage reference and digital decimation filter
• Flexible serial output supporting master and slave modes

Applications

• Consumer digital audio receivers
• Digital audio recorders and portable devices
• CD-R, DCC, MD, and DAT systems
• Sampling music synthesizers

Procurement Notes

Verify the package type is 28-lead SOIC and the temperature range is 0°C to 70°C. Confirm RoHS compliance status as indicated in the ordering guide. Check for ESD sensitivity precautions during handling.

Selection Notes

Select this component for applications requiring low jitter conversion and simplified antialias filtering. Ensure the system clock can provide 256×FS or 384×FS frequencies. Verify that the input signals are AC coupled to allow proper autocalibration of DC offsets.

Part Context

The AD1877JRZ is part of the Analog Devices AD1877 family of audio ADCs. It is fabricated using a 0.8 µm CMOS process. The 'JRZ' suffix indicates the SOIC package and commercial temperature range.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.