AD1849JP

Overview

The AD1849JP is a high-performance stereo digital-to-analog converter manufactured by Analog Devices. It features a 20-bit resolution and supports sampling rates up to 192 kHz, making it suitable for high-fidelity audio applications. The device integrates a delta-sigma modulator and reconstruction filter, reducing the requirement for external analog filtering. It operates with a single +5V power supply and includes a serial interface compatible with DSPs and microprocessors. The component is housed in a 40-lead plastic DIP package.

Feature Summary

• Integrates delta-sigma modulation and reconstruction filtering for simplified system design
• Supports high-resolution 20-bit audio conversion with low distortion characteristics
• Features a versatile serial interface compatible with standard digital signal processors

Applications

• High-fidelity stereo audio playback systems
• Professional audio recording equipment
• Digital audio workstations

Procurement Notes

Verify the specific suffix JP indicates the plastic DIP package variant when sourcing. Confirm manufacturing status as legacy components may have limited availability or require obsolescence management strategies. Ensure compatibility with existing board layouts designed for 40-lead DIP footprints during procurement planning.

Selection Notes

Select this component for applications requiring high channel separation and low total harmonic distortion in stereo configurations. Compare against newer integrated audio codecs if system complexity reduction is prioritized over discrete DAC performance. Verify that the required sampling rate does not exceed the device's maximum specification of 192 kHz.

Part Context

The AD1849 belongs to Analog Devices' professional audio DAC family, designed for demanding audiophile and studio-grade applications. It represents a discrete solution offering precise control over the digital-to-analog conversion process compared to fully integrated audio subsystems.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Evaluate newer generation audio DACs from the manufacturer for pin-compatible or functionally equivalent alternatives if discontinuation is confirmed.