AD1856N-K

Overview

The AD1856N-K is a 16-bit PCM audio Digital-to-Analog Converter (DAC) manufactured by Analog Devices Inc. It features a single-supply operation and integrates an on-chip precision reference voltage source, eliminating the need for external components in many applications. The device supports serial data input compatible with standard audio interfaces. Key electrical specifications include a signal-to-noise ratio of 94 dB and total harmonic distortion plus noise (THD+N) of 0.003%. It operates within a temperature range of -40°C to +85°C and is housed in a 28-pin DIP package.

Feature Summary

• 16-bit resolution with 94 dB SNR and 0.003% THD+N
• Integrated on-chip precision reference voltage
• Single 5V supply operation
• Serial interface compatible with I2S and DSP standards

Applications

• Compact Disc players
• Multichannel audio systems
• Digital mixing consoles
• Professional audio recording equipment

Part Context

The AD1856N-K belongs to the AD185x family of high-performance audio DACs from Analog Devices. This series is designed for professional audio applications requiring low distortion and high dynamic range. The 'N' suffix indicates a leaded ceramic DIP package, while '-K' typically denotes a specific manufacturing lot or revision code defined by the manufacturer's internal coding system.

Replacement Considerations

Direct pin-compatible replacements within the same family include the AD1856RZ (SOIC package). For functional equivalents with similar performance characteristics, consider the AD1851 or AD1866, though interface requirements and pinouts may differ. Verify package compatibility and power supply configurations before substitution.