AD1854 is a stereo 96 kHz multibit DAC. It supports 16-/18-/20-/24-bit data and 24 bits and 96 kHz sample rate. It features a multibit sigma-delta modulator with 'Perfect Differential Linearity Restoration' for reduced idle tones and noise floor. The data-directed scrambling DAC is least sensitive to jitter. It has a differential output for optimum performance. It offers a dynamic range of 113 dB at 48 kHz sample rate (AD1854KRS) and a signal-to-noise ratio of 112 dB at 48 kHz sample rate (AD1854KRS) with -101 dB THD+N.
The AD1854 is a single-chip stereo audio Digital-to-Analog Converter (DAC) designed to deliver high dynamic range and signal-to-noise ratio. It features a multibit sigma-delta modulator with dither, continuous-time analog filters, and an on-chip stereo attenuator controlled via an SPI-compatible serial port.
The device supports 16-, 18-, 20-, and 24-bit data formats at sample rates up to 96 kHz. It includes features such as hardware and software controllable clickless mute, zero input flag outputs for both channels, and digital de-emphasis processing compatible with CD playback standards.
| Resolution | 20 Bits |
|---|---|
| Signal-to-Noise Ratio (No Filter) | 110 dB |
| Dynamic Range (A-Weighted) | 113 dB |
| Total Harmonic Distortion + Noise | -94 to -101 dB |
| Analog Outputs Differential Range | 5.6 V p-p |
| Supply Voltage | 4.5 to 5.5 V |
| Operating Temperature Range | 0°C to 70°C |
| Package Type | 28-Lead SSOP |
The AD1854 supports a 96 kHz sample frequency.
Yes, it includes digital de-emphasis processing for CD playback compatibility.