AD1864N-K

Overview

The AD1864N-K is a complete dual 18-bit audio digital-to-analog converter (DAC) manufactured by Analog Devices. It features dual serial input and voltage output capabilities, requiring no external components for operation. The device operates with ±5 V to ±12 V supplies and supports 8x oversampling per channel. Key performance metrics include 0.0017% THD+N, 115 dB channel separation, and ±0.3% interchannel gain matching. It utilizes cophased outputs and is fabricated on the BiMOS II process.

Feature Summary

• Dual 18-bit DACs with serial input and voltage output
• No external components required for operation
• Operates at 8x oversampling per channel
• Supply voltage range of ±5 V to ±12 V

Applications

• Multichannel Audio Applications
• Compact Disc Players
• Multivoice Keyboard Instruments
• DAT Players and Recorders
• Digital Mixing Consoles

Part Context

The AD1864N-K belongs to the AD1864 series of high-performance audio DACs. The 'N' suffix indicates a DIP package option, while '-K' typically denotes a specific temperature grade or qualification variant within Analog Devices' product line. It is part of a family that includes variants like the AD1865 and AD1868, designed for high-fidelity audio signal reconstruction.

Replacement Considerations

The AD1865 offers similar functionality but operates at 16x oversampling. The AD1868 provides single-supply operation instead of dual supply. Verify pin compatibility and power supply requirements when substituting these devices.