The AD1866 is a single supply dual 16-bit audio DAC offering excellent performance while requiring a single +5 V power supply.
The AD1866 is a complete monolithic dual 16‑bit digital‑to‑analog converter that operates from a single +5 V supply. It integrates CMOS logic, bipolar and MOS linear elements, and laser‑trimmed thin‑film resistors to achieve low THD+N (0.005 % typical), high signal‑to‑noise ratio (95 dB typical) and excellent channel separation (115 dB typical). The device is offered in 16‑pin plastic DIP or SOIC packages and is suitable for multimedia workstations, PC audio add‑in boards, portable CD/DAT players and automotive audio applications.
The datasheet provides detailed electrical specifications, absolute maximum ratings, grounding and power‑supply recommendations, as well as recommended circuit schematics for noise reduction and biasing. Typical performance graphs illustrate THD+N versus frequency, channel separation, and power‑supply rejection, helping designers optimize audio quality in battery‑powered or low‑power systems.
| Resolution | 16 Bits |
|---|---|
| Power Dissipation | 50 mW typical |
| Signal‑to‑Noise Ratio | 95 dB typical |
| Channel Separation | 115 dB typical |
| Supply Voltage | 4.75 V – 5.25 V |
| Operating Temperature Range | -35 °C to +85 °C |
| Output Range | +1 V |
| Output Impedance | 0.1 Ω |
| Load Current | 1 mA |
The AD1866 operates from a single +5 V supply, with an allowed range of 4.75 V to 5.25 V.
No external deglitcher is required for the AD1866.