AD1866RZ-REEL

Overview

The AD1866RZ-REEL is a dual 16-bit audio digital-to-analog converter (DAC) from Analog Devices, packaged in a 16-pin SOIC. It operates on a single +5 V supply with typical power dissipation of 50 mW. Key electrical specifications include a signal-to-noise ratio of 95 dB, total harmonic distortion plus noise of 0.005%, and channel separation of 115 dB at 1 kHz. The device features a serial interface compatible with TTL and +5 V CMOS logic, supporting clock rates up to 13.5 MHz for oversampling ratios of 2x, 4x, 8x, or 16x. It includes integrated output amplifiers capable of ±1 V swing and provides internal bias voltages to eliminate the need for external false ground networks.

Feature Summary

• Dual 16-bit DACs with 0.005% THD+N and 95 dB SNR
• Single +5 V supply operation with low power consumption (50 mW)
• Serial input interface supporting up to 16 MHz clock rates
• Integrated output amplifiers with ±1 V output range

Applications

• Multimedia workstations
• PC audio add-in boards
• Portable CD and DAT players
• Automotive CD and DAT players
• Noise cancellation systems

Procurement Notes

Verify that the REEL suffix indicates tape-and-reel packaging rather than tube packaging. Confirm the specific lot date code and RoHS compliance status directly with the supplier or manufacturer documentation, as these attributes are not defined by the part number itself. Ensure the ordering information matches the required package option R-16.

Selection Notes

Select this component when a single-supply, low-power audio DAC is required for portable or automotive applications. The AD1866RZ-REEL is suitable for designs needing dc-coupled outputs via its internal bias pins, removing the need for external coupling capacitors. Verify that the system can accommodate the 16-pin SOIC footprint and that the digital interface timing meets the specified setup and hold requirements.

Part Context

The AD1866RZ-REEL belongs to the AD1866 family of dual 16-bit audio DACs. The 'R' designation identifies the 16-pin plastic SOIC package variant, while the '-REEL' suffix specifies tape-and-reel packaging for automated assembly. This distinguishes it from the AD1866N, which uses a 16-pin plastic DIP package.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.